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Academic literature on the topic 'Fossil section'

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Published: 11 March 2023

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Journal articles on the topic "Fossil section"

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Bogucki, Andriy, and Petro Voloshyn. "Engineering-geological characteristic of the rocks of the loess-soil series from the key section at Korshiv (Volhynian Upland)." Visnyk of the Lviv University. Series Geography, no. 42 (October 15, 2013): 11–21. http://dx.doi.org/10.30970/vgg.2013.42.1757.

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Korshiv key section is one of the best studied and most complete sections of periglacial loess-soil series of Volhyn-Podillia. There is total thickness of loess-soil series approximately is 30 meters in this section. This key section is stratotype of Korshiv fossil soil complex and Lutsk fossil soil. Pseudomorphs after the structures of cellular ice of several stages of Middle Pleistocene palaeocryogenesis were allocated here for the first time for Volhyn-Podillia. Detailed description of the section and the results of engineering-geological studies of rocks of all selected loess and palaeosoil horizons were done. Individual properties of selected stratigraphic horizons and their dependence on the paleogeographic conditions of sedimentation were displayed. Key words: loesses, fossil soils, palaeogeographical conditions, engineering-geological features, subsidence, Volhynian Upland.
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Crimes, T. P., and Jiang Zhiwen. "Trace fossils from the Precambrian–Cambrian boundary candidate at Meishucun, Jinning, Yunnan, China." Geological Magazine 123, no. 6 (November 1986): 641–49. http://dx.doi.org/10.1017/s0016756800024158.

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AbstractThe Precambrian–Cambrian boundary candidate section at Meishucun, China, has yielded trace fossils which are abundant at some horizons. The earliest occur in Unit 3 of the Zhongyicun Member approximately 8 m above the lower selected stratotype reference point for the boundary and includeArenicolitessp.,Asteriacitessp.,Neonereites biserialis, N. uniserialisandSellaulichnus meishacunensis. The next trace-fossil-bearing horizon is in Unit 6 of the Zhongyicun Member whereCochlichnussp.,Monomorphichnussp.,Neonereites biserialisandN. uniserialisoccur. Immediately above, in Unit 7, areCruzianasp.,Didymaulichnus miettensis, Monomorphichnussp. andRusophycussp. In the Badaowan Member at the top of the section there areDidymaulichnussp. andTaphrhelminthopsis circularisin Unit 9,Arenicolitessp.,Diplocraterionsp.,Gordia molassica, Skolithossp. andT. circularisin Unit 11, andGordia meandria, ?Plagiogmussp.,Skolithossp. andT. circularisin Unit 12.Comparison of this trace-fossil distribution with that in key Precambrian–Cambrian boundary sections in other countries indicates that the ranges of a few trace fossils cross the boundary (e.g.Didymaulichnus, Neonereites, Planolites) but most appear only in the Cambrian. Different ichnogenera seem to appear at various levels above the boundary.ArenicolitesandAsteriacitesare among the first, whileTaphrhelminthopsis circularisis only encountered higher in all sequences. Some have only been recorded at much higher levels and relatively close to the first appearance of trilobites (e.g.Cruziana, Diplocraterion, Rusophycus). This suggests that the first appearance of specific trace fossils or groups of trace fossils may be valuable for locating the boundary in some sections and for correlating late Precambrian and early Cambrian strata.
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Michalík, Jozef, and Vladimír Šimo. "A new spreite trace fossil from Lower Cretaceous limestone (Western Carpathians, Slovakia)." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 100, no. 04 (December 2009): 417–27. http://dx.doi.org/10.1017/s1755691009008068.

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ABSTRACTZavitokichnus fusiformisn. igen. et n. isp. occurs in Lower Cretaceous (Valanginian to Hauterivian) limestones of the Fatric Superunit in the Western Carpathians. Typical cross sections of this more or less spiral trace fossil are sometimes U–O–C–S-shaped. In cross-section the trace fossil passes from a simple linear form, and spreads to a wider rolled-up or rolled-out form and then it returns to a linear trace. Spreite-like lamellae are distinguishable on several cross-section examples. The trace fossil was produced by a deposit feeder and it might be classified as a fodinichnion.Z. fusiformisco-occurs with trace fossil associations ofZoophycos,Chondrites,Planolites,HormosiroideaandPalaeophycusin carbonate sediments of a deep-seated ramp along the margin of the Fatric intrashelf basin.
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Bogucki, Andriy, and Petro Voloshyn. "Engineering-geological characteristic of the rocks of the loess-soil series from the key section Sharovechka (Podolian upland)." Visnyk of the Lviv University. Series Geography, no. 49 (December 30, 2015): 14–24. http://dx.doi.org/10.30970/vgg.2015.49.8510.

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Description and detailed engineering-geological characteristic of rocks of the loess-soil series of one of the most complete loess section of Podolian Upland were given. Sharovechka key section represents the main loess and palaeosol horizons of Lower, Middle and Upper Pleistocene. There is total thickness of loess-soil series approximately is 25 meters in this section. Horokhiv and Korshiv fossil soil complexes, Lutsk and Sokal fossil soils, and lower horizon of Lower Pleistocene loesses can be key horizons for all territory of Volhyn-Podillia. The monoliths were taken from all stratigraphic horizons of this section with the purpose of investigation of engineering-geological features including subsidence. The analysis of the distribution of composition and features indexes in loess and palaeosol succession demonstrates a significant difference between their certain horizons caused by peculiarities of paleogeographic conditions of their formation and diagenetic transformation. It was also deduced that the degree of contrast of parameters of composition and features of loess and palaeosol horizons in comparison with key loess sections of Volhynian Upland was much lower. Probably this was caused by the higher total content of clay in soils of certain stratigraphic horizons and by the direct overlay of different types of fossil soils at each other. Key words: loess, loess-soil series, key section, fossil soil, engineering-geological features.
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Sullivan, Colleen A., and Sarah W. Keenan. "Experimental dissolution of fossil bone under variable pH conditions." PLOS ONE 17, no. 10 (October 13, 2022): e0274084. http://dx.doi.org/10.1371/journal.pone.0274084.

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Fossils exposed at the surface are an integral component of the paleontologic record and provide an archive of past life. However, it is widely known that fossils are not stable indefinitely upon exposure to surface conditions such as physical, chemical, and biological processes, and this last phase of taphonomy is poorly understood. Studies regarding the longevity of fossils subject to weathering, such as acidic precipitation, are absent in the literature. The goal of this study was to experimentally determine vertebrate fossil dissolution rates under variable pH conditions in a controlled laboratory setting. It was hypothesized that fossils would dissolve within acidic solutions and do so at an increasing rate when exposed to increasingly acidic solutions. The experiments were conducted on three fossil vertebrae in triplicate in closed reaction vessels at pH 4, 5, and 6. The fossils were completely submerged for 21 days in a tap water solution with the pH adjusted using 0.1N hydrochloric acid (HCl). Fossil dissolution was quantified by changes to: (1) fossil mass; (2) elemental chemistry of water and fossils with inductively coupled plasma mass spectrometry (ICP-MS); (3) fossil mineralogy with X-ray diffraction (XRD); and (4) histologic structures with thin section analyses. All fossils exhibited mass loss, which increased with decreasing pH conditions, and was greatest under pH 4 (477 to 803 mg loss). The elemental analyses with ICP-MS indicated an increase of both calcium (maximum increase of 315 ppm) and phosphorus (increase of 18 ppm) in aqueous solutions with increasing pH and a loss of those same elements from the fossils (maximum loss of 10 ppm Ca and 6 ppm P). XRD revealed loss of gypsum in all post-dissolution samples. Taken together, the results of ICP-MS and XRD suggest dissolution of the primary mineral phases, including hydroxylapatite, and secondary phases, particularly calcite and gypsum, resulting in an estimated mass loss at pH 4 of 23 to 28 mg per day. Thin section analysis showed degradation of both cortical and trabecular bone in all post-dissolution images, demonstrating physical changes to the fossils as a result of water-rock interactions. These findings constitute the first quantitative analysis of fossil dissolution rates and provide insights into this last stage of taphonomy, addressing a largely understudied potential bias in the vertebrate fossil record.
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Hassani, Mohammad Javad. "Microbiostratigraphy, microfacies analysis and lateral basin evolution of Lower Cretaceous deposits in the south of Kerman region, SE Iran." Boletín de la Sociedad Geológica Mexicana 74, no. 2 (July 30, 2022): A240322. http://dx.doi.org/10.18268/bsgm2022v74n2a240322.

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Detailed microbiostratigraphy and basin evolution of the Lower Cretaceous deposits in the Rayen area, south of Kerman Region, SE Iran are investigated for the first time in two sections. The section no. 1 is 324.6m in thickness and comprises five lithostratigraphic units. The section no. 2 is 218 m in thickness and includes three lithostratigraphic units. The identified fauna and flora include 41 benthic foraminifera and 11 calcareous algae species. The identified assemblage indicates that the marine strata in both sections were deposited during the Barremian to Albian. The microfacies analyses carried out on 22 carbonate and 2 clastic microfacies indicate that the deposits in the section no. 1 were deposited on a homoclinal carbonate ramp, whereas in the section no. 2 they were deposited on a rimmed carbonate shelf. Generally, the Cretaceous deposit in the two studied sections represent different sedimentary models and fossil content indicating different basin evolution histories. The paleogeographic setting of the studied area on the south eastern margin of the Central-East Iranian Microcontinent and the active tectonic history during the Mesozoic suggest that the syndepositional tectonism influenced the basement’s morphology and resulted in changes in the fossil diversity and sedimentary nature of adjacent sedimentary basins.
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Gladenkov, Andrey Yu. "Study of marine Paleogene diatom assemblages from the Kamchatka region: results of the last decade." Issues of modern algology (Вопросы современной альгологии), no. 1(28) (2022): 117–22. http://dx.doi.org/10.33624/2311-0147-2022-1(28)-117-122.

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Review of results obtained on fossil diatom assemblages studied from marine Paleogene sections in Kamchatka region in the last decade are presented. The first data for Kamchatka on direct correlation of Eocene diatom assemblages with complexes of calcareous plankton (the Il’pinskii Peninsula stratigraphic section, northeast Kamchatka), and on correlation of Oligocene diatom assemblages with the magnetostratigraphic scale (the Kvachina Bay section, west Kamchatka) are emphasized.
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LI, DA, HONG-FEI LING, SHAO-YONG JIANG, JIA-YONG PAN, YONG-QUAN CHEN, YUAN-FENG CAI, and HONG-ZHEN FENG. "New carbon isotope stratigraphy of the Ediacaran–Cambrian boundary interval from SW China: implications for global correlation." Geological Magazine 146, no. 4 (March 26, 2009): 465–84. http://dx.doi.org/10.1017/s0016756809006268.

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AbstractThe Yangtze Platform preserves relatively thick carbonate successions and excellent fossil records across the Ediacaran–Cambrian boundary interval. The intensely studied Meishucun section in East Yunnan was one of the Global Stratotype Section candidates for the Precambrian–Cambrian boundary. However, depositional breaks were suspected in the section and the first appearance of small shelly fossils could not be verified. The Laolin section located in NE Yunnan is more continuous and shows great potential for global correlation of carbon isotope features across the Precambrian–Cambrian boundary. However, the stratigraphic framework and correlations were controversial. We studied and systematically sampled the Laolin section and present here new carbon isotope data for this section. The Laolin section consists of, in ascending order, the Baiyanshao dolostone of the Dengying Formation, the Daibu siliceous dolostone, Zhongyicun dolomitic phosphorite, lower Dahai dolostone and upper Dahai limestone of the Zhujiaqing Formation, and the black siltstone of the Shiyantou Formation. Our data reveal a large negative δ13C excursion (−7.2‰, L1′) in the Daibu Member, which matches the previously published data for the Laolin section, and a large positive excursion (+3.5‰, L4) in the Dahai Member, which was not shown in the published data. The excursion L1′ correlates well with the similarly large negative excursion near the first appearance of small shelly fossils in Siberia and Mongolia. Similar magnitude excursions are also known from Morocco and Oman, for which there are no robust fossil constraints but from where volcanic ash beds have been dated precisely at 542 Ma, thus confirming a global biogeochemical event near the Ediacaran–Cambrian boundary. Our data also indicate that deposition was more continuous at the Laolin section compared with the Meishucun section, where there are no records of a comparable negative excursion near the Ediacaran–Cambrian boundary, nor any comparable positive excursion in the Dahai Member. Therefore, the Laolin section has proven potential to be a supplementary Global Stratotype Section for the Ediacaran–Cambrian boundary on the Yangtze Platform.
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O'NEIL, GRETCHEN R., LYDIA S. TACKETT, and MICHAEL B. MEYER. "THE ROLE OF SURFICIAL BIOTURBATION IN THE LATEST EDIACARAN: A QUANTITATIVE ANALYSIS OF TRACE FOSSIL INTENSITY IN THE TERMINAL EDIACARAN–LOWER CAMBRIAN OF CALIFORNIA." PALAIOS 37, no. 12 (December 29, 2022): 703–17. http://dx.doi.org/10.2110/palo.2021.050.

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ABSTRACT Bioturbating activities have played a vital role in shaping the marine ecosystem throughout metazoan history, influencing the abundance and preservation potential of body fossil-producing taxa and driving major environmental and geochemical changes. The earliest trace making behaviors arose during the late Ediacaran Period (∼ 560–541 Ma), disrupting the substrate previously occupied by dominantly sessile organisms. Simple dwelling and grazing behaviors exploited the organic-rich matgrounds, expanding into the underutilized microbial mat ecosystem. In the western United States, trace assemblages from Ediacaran–Cambrian boundary-spanning deposits document a thriving trace-maker ecosystem. One boundary-spanning deposit in this region, the lower member of the Wood Canyon Formation, crops out along the California-Nevada boundary and contains both trace and body fossil assemblages. The Chicago Pass section of the lower Wood Canyon Formation contains a suite of dominantly simple Ediacaran traces, which become commonplace in the upper part of the stratigraphic section, documenting the onset of prevalent trace-making behaviors in this region. While traces have been previously described from this locality, the addition of the complex trace Lamonte trevallis and quantification of trace fossil density of simple Ediacaran traces provides a more comprehensive ichnological view of the Chicago Pass section. Although Chicago Pass does not yield abundant tubicolous body fossils, as are found elsewhere in the region, the low diversity ichnoassemblages document both burgeoning surficial trace making groups and mat-targeted mining in the latest Ediacaran. The behaviors present at Chicago Pass are similar to those of the Dengying Formation in South China, and highlight the need for petrographic-based trace fossil studies. Additionally, studies of Nama Group trace fossils of the same age from Namibia report higher diversity and complexity in trace-making activities than what has been observed at Chicago Pass, but with similar, low Ediacara biota body fossil diversity. If Ediacara biota diversity is anticorrelated with trace-making behaviors, Chicago Pass represents a low-complexity end-member of the same phenomenon observed in Namibia. The effect of surface sediment disruption on the sessile Ediacaran communities may have been decoupled from complexity of the traces, more so influenced by the presence of general trace-making behaviors in aggregate, including simple traces.
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Bogucki, Andriy, and Petro Voloshyn. "Engineering-geological characteristic of the rocks of the loess-soil series from the key section Boyanychi (Volhynian Upland)." Visnyk of the Lviv University. Series Geography, no. 47 (November 27, 2014): 18–29. http://dx.doi.org/10.30970/vgg.2014.47.813.

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Boyanychi key section is one of the most complete, most famous and best studied sections of periglacial loess-soil series of Volhyn-Podillia. An almost complete history of the formation of rocks for the last 600 000 years is represented here. There is total thickness of loess-soil series approximately is 25 meters in this section. This key section is stratotype of Sokal fossil soil. Pseudomorphs after the structures of cellular ice of Boyanychi palaeocryogenesis stage were allocated here for the first time for Volhyn-Podillia and individual significance of this stage was substantiated as one of the most ancient in the Pleistocene. Boyanychi key section was studied by the use of practically all methods which apply for the investigation of Pleistocene deposits (in particular, micromorphological, palaeocryogenic, palaeomagnetic, engineering-geological, palaeontological, methods of absolute dating of deposits etc.). Detailed description of the section and the results of engineering-geological studies of rocks of all selected loess and palaeosoil horizons were done. Individual properties of selected stratigraphic horizons and their dependence on the paleogeographic conditions of sedimentation were displayed. Key words: loesses, fossil soils, palaeogeographical conditions, palaeocryogenesis, engineeringgeological features, subsidence, Volhynian Upland.
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Dissertations / Theses on the topic "Fossil section"

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Sbisa', Andrea. "Structure and eruptive history of the Sesia caldera, North West Italy." Doctoral thesis, Università degli studi di Trieste, 2011. http://hdl.handle.net/10077/4560.

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2009/2010
Questa tesi di dottorato è focalizzata sui meccanismi dei sistemi magmatici che possono causare super-eruzioni, e ha come oggetto una sezione fossile che comprende le zone Ivrea-Verbano e la zona Serie dei Laghi (Italia, Nord-Ovest). Questa ricerca presenta evidenze di una caldera di età Permiana che espone il sistema magmatico fino alla profondità di 25 km. La correlazione delle età delle rocce vulcaniche e plutoniche della crosta media ed inferiore, mette in luce come queste costituiscano l’esposizione di un sistema magmatico che ha alimentato una caldera, e evidenzia la relazione cause-effetto tra l’intrusione di fusi basaltici derivanti dal mantello e il vulcanesimo acido. L’eruzione associata al collasso della caldera è stata di VEI > a 8 (Newhall and Self, 1982) e caratterizzata da una unica unità eruttiva a composizione riolitica. Il collasso della caldera è avvenuto in un campo vulcanico maturo, probabilmente tagliando il bordo di una caldera precedente. Il maggior volume di lave eruttate è composto da dacite alte in silice, i termini meno evoluti sono andesi-basalti. Le caratteristiche della caldera e del campo vulcanico sono simili a caldere formatesi durante la transizione da un regime tettonico compressionale ad uno estensionale-transpressivo. Il lavoro documenta una struttura interna della caldera simile a quella descritta per la caldera Grizzly Peak Colorado, USA (Fridrich et al., 1991) dove le frane escono come cunei dal “caldera wall” con una geometria simile ad un “albero di natale rovesciato” insieme ad una zonazione tra zone ricche di litici a zone di ignimbrite con pochi litici. Dopo il collasso, il riempimento della caldera è stato intruso direttamente da granito senza alcune evidenze di “caldera floor”. La composizione delle rocce della caldera del Sesia è compatibile con una ibridazione tra fusi basaltici derivanti dal mantello e una o più componenti anatettiche. La comparazione dell’eruzione che ha causato il collasso della caldera con le rocce del plutone sottostante non mette in luce una parentela con la zona superiore (Upper Valle Mosso); si aprono quindi nuove problematiche che richiedono ulteriori studi isotopici. Abbiamo documentato due stadi di alterazione idrotermale nel riempimento della caldera del Sesia, uno a più alta temperatura ed uno seguente a più bassa temperatura. Si può osservare che la circolazione idrotermale ha causato impoverimento di silice e un inizio di metasomatismo della roccia. La disposizione areale delle vene di quarzo e delle zone di silicificazione indicano che la deposizione ha interessato i confini tra materiali a differente porosità, in particolare tra la porosa ignimbrite intracaldera e materiali meno porosi come le rocce del “caldera wall” (grandi frane intracaldera ed il granito che ha intruso la caldera). Non abbiamo osservato alcuni dei fenomeni associati alla circolazione idrotermale nel granito che intrude il riempimento della caldera, perciò riteniamo che il contatto sia stato un importante confine alla circolazione dei fluidi idrotermali che circolavano principalmente nel riempimento della caldera.
XXIII Ciclo
1976
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Thungström, Kerstin. "Indirect emissions estimation model for investments in the automobile sector, fossil fuel sector and utilities sector." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355513.

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To combat climate change multiple initiatives have been launched to steer the financial market towards a more sustainable and resilient path. For example the Montreal Pledge that have committed over 120 investors to measure and disclose their carbon footprints of their portfolios. ISS-Ethix Climate Solution provides climate change related services to investors. In order to evaluate companies’ sustainability ISS-Ethix Climate Solution estimates companies’ direct and indirect greenhouse gas emissions. To simplify these estimations, the emissions from corporations are divided into three scopes, where scope 1 and 2 cover the emissions from the combustion of fuels used in the company and electricity generation. Scope 3 corresponds to all other emissions generated upstream and downstream the companies’ supply chain. The aim of this study was to help ISS-Ethix Climate Solution to develop a model that estimates the indirect scope-3-emission intensity for companies in the automobile sector, fossil fuel sector and utility sector. The first objective was to examine if the variations within the sectors could be explained and categorized. To carry this out each sector was defined and their emission sources identified. The emissions could be explained and categorized for the automobile sector and fossil fuel sector. However, the emissions for the utility sector could only partly be explained and categorized. The second objective was to examine which parameters and subcategories were relevant for estimating the emissions. Two methods were investigated to carry out the second objective; correlation analysis and the average-data method. No correlations could be found between any of the sectors and the selected parameters. The estimated emissions using the average-data method were verified to the companies reported emissions. For the automobile and the fossil fuel companies the estimated emissions followed the same trend as the reported data. However, no trend could be found for the utility companies. Estimating emissions using the average-data method requires a certain corporation structure. The method can be used for corporations with a specific output, but does not suit corporations with a more complex structure. The largest limitation with the models was the information shortages from the corporations. Therefore increased transparency from the companies is a necessity in order to develop the models.
För att minska klimatförändringen har ett flertal initiativ lanserats för att göra finanssektorn mer hållbar. Tillexempel Montreal förbindelsen som har fått över 120 investerare att mäta och publicera klimatutsläppen i sina aktieportföljer. Företaget ISS- Ethix Climate Solution erbjuder klimatrelaterade tjänster för investerare. För att värdera hur hållbart ett företag är estimerar ISS-Ethix deras direkta och indirekta utsläpp av växthusgaser. För att förenkla dessa estimeringar är utsläppen indelade i tre så kallade scopes (områden), där scope 1 och 2 motsvarar emissionerna som genereras av att företaget förbränner fossila bränslen och deras elanvändning. Scope 3 motsvarar alla utsläpp som sker uppströms och nedströms företagens leverantörskedja. Syftet med denna studie var att hjälpa ISS-Ethix Climate Solution att utveckla en modell som estimerade scope 3 utsläppen från företag inom fordonssektorn, fossila- bränslen-sektorn och energisektorn. Det första målet var att undersöka om variationerna inom sektorerna kunde förklaras och kategoriseras. Detta utfördes genom att varje sektor först definierades och utsläppskällorna identifierades. Emissionerna kunde förklaras och kategoriseras för fordonssektorn och fossila-bränslen-sektorn. Däremot kunde utsläppen från energisektorn bara delvis förklaras och kategoriseras. Det andra målet var att undersöka vilka parametrar och sub-kategorier som var viktiga för att estimera sektorernas emissioner. För att göra detta undersöktes två olika metoder; korrelationsanalys och medelvärdesmetoden. Inga korrelationer kunde hittas mellan någon av sektorerna och de undersökta parametrarna. De estimerade emissionerna när medelvärdesmetoden användes, verifierades mot företagens självrapporterade utsläpp. För fordonssektorn och fossila-bränslen-sektorn följde de estimerade och rapporterade utsläppen samma trend. Däremot påträffades ingen trend för energibolagen. Att estimera växthusgasutsläpp med hjälp av en medelvärdesmetod kräver en viss typ av företagsstruktur. Metoden kan användas för företag med en specifik produkt, men är inte lämplig för företag med en mer komplex struktur. Modellernas största begränsning var informationsbristen från företagen. Därför behövs mer transparens från företagen för att kunna utveckla modellerna.
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Hallin, Sven. "Reducing residential sector dependence on fossil fuels : a study of motivating factors." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21324.

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This research considers the motivating factors behind energy use in the residential sector, which in 2011 accounted for more than 26% of overall energy use in the UK. The study took a mixed method approach and considered case studies in both the UK and Australia, two countries with very different energy regimes. UK case studies were analysed using predictive energy modelling, quantitative assessment of actual energy use and thermal comfort, and qualitative interview and focus group assessment of individual motivation around energy use. The Australian case studies were assessed qualitatively and their attitudes compared to the UK core group. Additional perspectives were gained through interviews with UK landlords, a large environmental group, a senior politician, and two senior policymakers from a large energy company. The investigation assesses the implied importance of the key strands developed from previous research in instigating changes in behaviour amongst occupants. These include psychological, social, financial, educational and regulatory factors. In particular, it looks at the ineffectiveness of the Green Deal on energy behaviour in the residential sector. The research offers a reasoned explanation as to why it is important to record predictive, actual, and intended behaviour with regard to energy use. The study concludes that a variety of incentives are necessary to encourage behaviour change, and that the complexity of occupant behaviour makes it difficult to develop a single policy to encourage more sustainable energy use. There is sometimes a disconnect between intention and behaviour. However, there seems to be a certain commonality among the occupants, in that their behaviour around energy is often other than predicted by conventional economics and more likely to incorporate predictions from behavioural economics. This is recognised by the case study participants in both the UK and Australia, and they largely agree on the beneficial role of government in regulating them and "nudging" them in the right direction with regard to influencing their motivations around energy use. Financial incentives are also a key driver in motivating residents to use energy more sustainably, but they need to be carefully aligned to suit a wide range of individuals. Another issue that became clear in the research is that policy focusing purely on energy efficiency can be ineffective, if the policy goal is to mitigate the effects of climate change. The rebound effect is likely to result in a lower demand for residential energy transferring to increased demand for energy elsewhere in the economy. The study recommends that policy should focus on sustainable energy use, using financial and other mechanisms to discourage the use of fossil fuels.
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Larsson, Mårten. "The role of methane and hydrogen in a fossil-free Swedish transport sector." Doctoral thesis, KTH, Energiprocesser, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174018.

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Drastic reductions of greenhouse gas emissions are required to limit the severe risks associated with a changing climate. One measure is to disrupt the fossil-fuel dependency in the transport sector, but it appears difficult and costly in comparison to other measures. Vehicles and fuels are available, but no single alternative can replace petrol and diesel in all parts of the transport system. None of them are ideal regarding all of the following aspects: vehicle performance, fuel production potential, sustainability, infrastructure, technology development and economy. Instead, several fuels are needed. In this thesis, the aim is to investigate the role of methane and hydrogen in a fossil- free vehicle fleet in Sweden, and compare them with other fuels in terms of well-to-wheel energy efficiency and economy. Processes for producing methane from biomass, waste streams from pulp mills and electricity are studied with techno-economic methods. Furthermore, well-to-wheel studies and scenarios are used to investigate the fuel chains and the interaction with the energy and transport systems. Effects of policy instruments on the development of biogas in the Swedish transport sector are also analysed and policy instruments are suggested to increase the use of methane and to introduce hydrogen and fuel cell electric vehicles. The results reveal that tax exemptions and investment support have been and will continue to be important policy instruments, but that effective policy instruments are needed to develop fuelling infrastructure and to support alternative vehicles. Electricity will be an important transport fuel for several reasons; the electric powertrain enables high energy efficiency and electricity can be produced from various renewable energy sources. Nevertheless, other fuels will be needed as complements to electricity. The results reveal that methane and hydrogen and associated vehicles may be necessary to reach a fossil-free vehicle fleet in Sweden. These fuels have several advantages: -        The function of the vehicles resembles conventional vehicles but with lower local and global emissions. -        Methane is a well proven as a transport fuel and hydrogen infrastructure and FCEVs, are commercial or close to commercialisation. -        They enable high well-to-wheel energy efficiency. -        They can be produced from renewable electricity and act as energy storage.

QC 20150929

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Sutisna, Irwan <1986&gt. "The impact of fossil-fuel subsidy removal on economic sector and income distribution in Indonesia 2015." Master's Degree Thesis, Università Ca' Foscari Venezia, 2018. http://hdl.handle.net/10579/13432.

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Correia, Ana Luísa Robalo. "Fossil fuel dependence and interfuel substitution in the electricity sector of Western European countries between 1990-2011." Master's thesis, NSBE - UNL, 2014. http://hdl.handle.net/10362/11525.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Economics from the NOVA – School of Business and Economics
This paper investigates (i) the diversity of fuel mix for power generation in the European Union measured by the Shannon-Weiner Index (SWI) computed for the 28 member-states between 1990 and 2010, and (ii) the degree of interfuel substitution in the electricity system of eight Western European countries where liberalization and other public policies have been implemented since the 1990s. We find evidence of high concentration of fuels for power generation, with fossil fuel sources still dominating the fuel-mix in spite of concerns over energy security supply and compliance with the EU target to reduce CO2 emissions to 20% below 1990 levels by 2020. A Linear Logit Model was built to compute the elasticities of substitution between coal, natural gas and oil, accounting for electricity market liberalization and the creation of the Emissions Trading Scheme (ETS) in the Western power sector for 1990-2011. The findings suggest that natural gas has been regarded as a transition fuel to a low-carbon area, mostly at the expense of oil. Liberalization has also generated more flexibility for fuel-switching.
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Öhman, Amanda. "Towards a fossil free steel sector : Conditions for technology transfer of hydrogenbased iron and steel in Europe." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264106.

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In order to meet the targets of the Paris Agreement, there is a need to significantly reduce emissions from energy-intensive industries, iron and steel included. One promising technology with the potential to reduce the emissions related to iron and steelmaking to basically none is direct reduction with fossil free hydrogen, which requires large amounts of fossil free electricity. This master thesis explores the conditions for this technology in a European context with an energy perspective as the main focus. Three primary steel producing countries in Europe are chosen as focus countries; Germany, France and Italy. The findings of the study conclude that neither of the focus countries is an optimal sociotechnical fit for hydrogen-based direct reduction for iron and steel production at present. France is the country with the best conditions from a solely energy perspective but lacks some important factors for an enabling environment for technology transfer. Germany on the other hand have the most promising characteristics for an enabling environment but still face large challenges when it comes to power sector decarbonisation. In order to overcome the barriers and create an enabling environment it is key that energy and industry transitions are aligned, that a policy framework that supports these transitions is in place and that key actors representing all aspects of the transition cooperate; from industry to research, academia, policymakers and others. The findings also show that the current locations of the primary steel plants are in many cases not where the most favourable conditions for renewable power generation are and given the renewable capacity and transmission limitations of today, merely switching to a hydrogenbased process is not likely viable. A future configuration could be decentralised value chains where the different processes are located where there are optimal conditions e.g. that either hydrogen or sponge iron is produced where there are favourable power conditions and then transported to steel plants for the remaining processes in the value chain.
För att nå målen uppsatta i Parisavtalet behöver energiintensiva industrier kraftigt minska sina utsläpp, däribland järn- och stålindustrin. Direktreduktion med fossilfri vätgas är en teknologi med potential att minska utsläppen från järn och ståltillverkning till praktiskt taget noll men kräver stora mängder fossilfri el. Detta examensarbete undersöker de energimässiga förutsättningarna för denna teknik i en europeisk kontext. Tre länder som producerar primärstål är utvalda som fokusländer i studien; Tyskland, Frankrike och Italien. Resultaten av studien visar att inget av de utvalda länderna i dagsläget har optimala sociotekniska förutsättningar för tekniken. Frankrike är det land med de bästa energimässiga förutsättningarna men saknar några viktiga faktorer för att vara en möjliggörande socioteknisk miljö. Tyskland å andra sidan har de mest lovande förutsättningarna för en lämplig socioteknisk miljö men står inför utmaningar när det kommer till energisystemet och tillgången på fossilfri el. För att skapa förutsättningar för denna teknik är det viktigt med koordinerade omställningar i energisektorn och industrin, policys som möjliggör dessa omställningar samt ett väl fungerande samarbete mellan industrin, akademin, beslutsfattare och andra viktiga aktörer. Studien visar också att de platser där nuvarande stålverk för primärstål finns inte har de bästa förutsättningar för förnybar elproduktion och att en vätgasbaserad process inte är optimal, baserat på den förnybara kapaciteten och de transmissionsbegränsningar som finns idag i elsystemet. Det finns istället möjlighet till decentraliserade värdekedjor, där varje process placeras där de mest lämpliga förhållandena finns. Detta kan exempelvis innebära att vätgas eller järnsvamp produceras där tillgången till fossilfri el är god, för att sedan transporteras till stålverken för de resterande processtegen.
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Moore, Jared. "Cost Effectiveness of CO2 Mitigation Technologies and Policies in the Electricity Sector." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/484.

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In order to find politically feasible ways to reduce greenhouse gas emission emissions, governments must examine how policies affect a variety of stakeholders. The costs and benefits of low carbon technology options are unique and affect different market participants in different ways. In this thesis, we examine the cost effectiveness of carbon mitigation technologies and policies from the social perspective and from the perspective of consumers. In Chapter 2, we perform an engineering-economic analysis of hybridizing concentrating solar thermal power with fossil fuel. We examine the cost effectiveness of substituting the solar power for new coal or gas and find the cost of mitigation to be approximately ~$130/tCO2 to ~$300/tCO2. In Chapter 3, we quantify some externalized social costs and benefits of wind energy. We estimate the costs due to variability and transmission unique to wind to have an expected value of ~$20/MWh. In Chapter 4, we quantify the cost effectiveness of a renewable portfolio standard and a carbon price from the perspective of consumers in restructured markets. We find that both that the RPS can be more cost effective than a carbon price for consumers under certain circumstances: continued excess supply of capacity, retention of nuclear generators, and high natural gas prices. In Chapter 5, we examine the implications of lowering electricity sector CO2 emissions in PJM through a Low Carbon Capacity Standard (LCCS). We estimate that an LCCS would supply the same amount of energy (105,000 GWh) as the RPS’s in PJM and an additional ~10 GW of capacity. We find that the LCCS could be more cost effective for consumers than an RPS if it lowered capacity prices.
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Calça, Cleber Pereira. "Microbiota fóssil em sílex da Formação Assistência (Subgrupo Irati, Permiano, Bacia do Paraná) no Estado de São Paulo." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/44/44139/tde-15052008-160651/.

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O estudo de lâminas delgadas de sílex de origem diageneticamente precoce de diversos níveis estratigráficos e localidades da Formação Assistência no Estado de São Paulo revelou pela primeira vez uma assembléia de microorganismos orgânicos delicados, excepcionalmente bem preservados neste importante marco estratigráfico e paleontológico do Neopermiano da Bacia do Paraná. Esta assembléia consiste principalmente de organismos unicelulares, dominados por cianobactérias, tanto solitárias como coloniais, sem nenhum indício de filamentos. Inclui também uma provável clorófita cocoidal, grãos de pólen e fitoclastos, além de alguns microfósseis de afinidades incertas. Estudos paleopalinológicos de resíduos orgânicos desta formação nunca detectaram os elementos delicados desta microbiota. O exame petrográfico permitiu observar não somente todos os microorganismos fósseis em três dimensões no interior da rocha, mas também a distribuição espacial original dos microorganismos e suas relações com os outros componentes da rocha. Isto facilitou a avaliação da variedade morfológica dos microfósseis resultante da degradação e permitiu inferir padrões ontogênicos de alguns dos táxons descritos. Dentre eles, foram reconhecidos 14 morfotipos, reunidos em cinco espécies (todas novas) com afinidades biológicas conhecidas (quatro espécies de cianobactérias e uma clorófita) e cinco táxons incertae sedis (dois novos). A microbiota ocorre principalmente no sílex na base da formação. Constitui massas volumosas e densas preservadas in situ interpretadas como organismos originalmente bentônicos, capazes de formar esteiras microbianas e pequenos estromatólitos. A sedimentologia aliada à ampla extensão geográfica, ao hábito, à abundância e à natureza exclusivamente unicelular dos microorganismos fósseis, alem de exemplos atuais análogos, indicam um paleoambiente aquoso raso de salinidade alta, talvez hipersalina com salinidade variável.
The study of petrographic thin sections of early diageneteic chert from diverse levels and localities of the Assistência Formation in the state of São Paulo, Brazil, revealed for the first time an exceptionally well-preserved assemblage of delicate fossil microorganisms in this important stratigraphic and paleontological Early Permian marker unit of the Paraná Basin. This assemblage consists primarily of delicate colonial and solitary unicellular microfossils, dominated by cyanobacteria, without any evidence whatsoever of filamentous microorganisms. It also includes a probable cocoidal chlorophyte, pollen grains and phytoclasts, as well as several less common microfossils of uncertain biological affinity. None of the delicate microfossils of this assemblage have ever been detected in palynological analyses of organic residues from this formation. The study of thin sections made it possible to observe not only all of the fossil microorganisms in three dimensions within the rock but also their original spatial distribution and relationships with other components of the rock. This facilitated evaluation of the morphological diversity of the fossil microorganisms and permitted inferences as to possible ontogenetic patterns. Fourteen morphotypes were recognized among the more delicate microfossils and attributed to five species (all new) of known biological affinities (four species of cyanobacterias and one chlorophyte) and five taxa of Incertae Sedis. The fossil microbiota occurs principally at the base of the formation as dense, voluminous masses interpreted as remains of an in situ benthonic microbiota of photosynthetic microorganisms capable of forming microbial mats and small stromatolites. The sedimentology, together with the widespread distribution, habit, abundance and exclusively unicellular nature of the fossil microorganisms and the paleoenvironmental implications suggested by analogous modern examples, are consistent with a shallow aquatic habitat of high and perhaps variable salinity for the microbiota.
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Wetter, Linda, and Oskar Sundholm. "Rättvisa på väg : En granskning av miljörättvisa i strategier för omställningen till fossiloberoende transportsektor i Jönköpings län." Thesis, Högskolan för lärande och kommunikation, Jönköping University, HLK, Globala studier, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49916.

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The aim of this paper is to investigate how strategies and plans for the transition to a fossil-free transport sector take environmental justice into account in these plans at a regional level. This is based on a theoretical framework of environmental justice and a legal geographical perspective. The empirical material that forms the basis of the study has been produced through qualitative content analysis of regional and municipal plans and strategies as well as semi-structured interviews with actors in the transition. In order to achieve the purpose, the strategies that emerged in the documents were examined, as well as how actors reasoned about these strategies with the help of environmental justice perspectives. The study has focused on an area where a knowledge gap has been identified in the literature. The result shows that there is no clear perspective of environmental justice in the plans and strategies in the Jönköping region and that the regional strategies needs to take more account of the just perspectives in the transition. This is achieved through different forms of justice: distributive, procedural, recognition and restorative.
Syftet med studien är att undersöka hur strategier och planer för omställningen till en fossilfri fordonssektor tar hänsyn till miljörättvisa i dessa planer på en regional nivå. Detta utifrån ett teoretiskt ramverk baserat på miljörättvisa och ett juridisk geografiskt perspektiv. Det empiriska material som ligger till grund för studien har tagits fram genom kvalitativ innehållsanalys av regionala och kommunala planer och strategier samt semistrukturerade intervjuer med aktörer i omställningen. För att uppnå syftet undersöktes vilka strategier som framträdde i dokumenten, samt hur aktörer resonerade kring dessa strategier med hjälp av perspektiv av miljörättvisa. Studien har fokuserat på ett område där en kunskapslucka har kunnat konstaterats i tidigare forskning. Resultatet visar att det saknas ett tydligt perspektiv av miljörättvisa i planerna och strategierna i Jönköpings län och att det behövs tas större hänsyn till rättviseperspektiven i dessa. Detta uppnås genom olika former av rättvisa: fördelande, deltagande, erkännande och reperativ.
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Books on the topic "Fossil section"

1

Durante, M. V. Angaran upper Permian flora of the Nan-shan section (northern China). Stockholm: Sven Hedin Foundation, 1992.

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Robertson, Bruce E. Systematics and paleoecology of the benthic Foraminiferida from the Buff Bay section, Miocene of Jamaica. New York: Micropaleontology Press, 1998.

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Annette, Hastrup, and Thomsen Erik, eds. Lagoon to deep-water foraminifera and ostracods from the Plio-Pleistocene Kallithea Bay section, Rhodes, Greece. Fredericksburg, Va: Cushman Foundation for Foraminiferal Research, 2005.

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Bybell, Laurel M. Evolutionary, biostratigraphic, and taxonomic study of calcareous nannofossils from a continuous Paleocene-Eocene boundary section in New Jersey. Washington: U.S. G.P.O., 1994.

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Fohrer, Beate. The Pennsylvanian (Moscovian) Izvarino section, Donets Basin, Ukraine: A multidisciplinary study on microfacies, biostratigraphy (conodonts, foraminifers, and ostracodes), and paleoecology. Lawrence, Kansas: Allen Press, 2007.

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Thomas, Margaret A. Guidebook for fieldtrips in Connecticut and Massachusetts: Geological Society of America, Northeast Section, 47th annual meeting, Hartford, Connecticut, March 17-20, 2012. Edited by Geological Society of America. Northeastern Section. Meeting and Geological Society of Connecticut. Hartford: State Geological and Natural History Survey of Connecticut, Dept. of Energy and Environmental Protection, in cooperation with the Geological Society of Connecticut, 2012.

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International Congress of Prehistoric and Protohistoric Sciences (14th 2001 Université de Liège). Sessions générales et posters: Actes du XIVème Congrès UISPP, Université de Liège, Belgique, 2-8 septembre 2001 : Section 18, Muséographie et société contemporaine. Oxford, England: Archaeopress, 2004.

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International Congress of Prehistoric and Protohistoric Sciences (14th : 2001 : Université de Liège)., ed. Section 13, ́Epoque Romaine: Sessions générales et posters = The Roman age : general sessions and posters. Oxford: Archaeopress, 2004.

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C, Ramirez Pedro, and Geological Survey (U.S.), eds. Diatom stratigraphy of selected Sisquoc Formation sections, Santa Maria Basin, California. Menlo Park, CA: U.S. Geological Survey, 1992.

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International Congress of Prehistoric and Protohistoric Sciences (14th : 2001 : Université de Liège)., ed. Sessions générales et posters: Actes du XIVème Congrès UISPP, Université de Liège, Belgique, 2-8 septembre 2001, Section 13, Epoque romaine. Oxford, England: Archaeopress, 2004.

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Book chapters on the topic "Fossil section"

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Histon, Kathleen. "Silurian Cephalopod Limestone Facies in the Carnic Alps (Rauchkofel Boden Section, Austria)." In Advancing Research on Living and Fossil Cephalopods, 365–79. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4837-9_26.

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Pleničar, Mario, Katica Drobne, and Bojan Ogorelec. "Rudists and Larger Foraminifera below the Cretaceous-Tertiary Boundary in the Dolenja Vas Section." In New Aspects on Tethyan Cretaceous Fossil Assemblages, 231–40. Vienna: Springer Vienna, 1992. http://dx.doi.org/10.1007/978-3-7091-5644-5_14.

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Spennato, Pietro, Vincenzo Trischitta, Ferdinando Aliberti, and Giuseppe Cinalli. "Lhermitte–Duclos (Section Rare Tumors)." In Posterior Fossa Tumors in Children, 805–12. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11274-9_54.

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Elkamel, Ali, Haslenda Hashim, Peter L. Douglas, and Eric Croiset. "An Integrated Approach for Carbon Mitigation in the Electric Power Generation Sector." In Environmentally Conscious Fossil Energy Production, 277–312. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470432747.ch8.

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Flügel, Erik. "Fossils in Thin Section: It is Not That Difficult." In Microfacies of Carbonate Rocks, 399–574. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08726-8_10.

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Flügel, Erik. "Fossils in Thin Section: It is Not That Difficult." In Microfacies of Carbonate Rocks, 399–574. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03796-2_10.

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Kurakawa, Yukihide. "Climate Policy in Power Sector: Feed-in Tariff and Carbon Pricing." In Economics, Law, and Institutions in Asia Pacific, 79–95. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6964-7_5.

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Abstract The purpose of this chapter is to investigate the effects of some mainstream policy schemes in the power sector on the reduction of CO2 emissions. The first part of this chapter is the analysis on the effects of promoting generation (fuel) efficiency of fossil-fuel power generation, specifically assuming more efficient coal-fired power plants that recently indicates increased presence in the Japanese power sector. Improvement in generation efficiency of fossil-fuel power plants is expected to reduce emissions of carbon dioxide mainly from a technological aspect. However, overall effects on carbon reduction in the whole industry would be ambiguous since it also depends on market structure. The increased efficiency in generation leads to an improvement in cost conditions of fossil-fuel power producers relative to their rivals. It enables them to expand their generation and market share. Analyzing the Cournot oligopoly model, it is shown that an improvement in fossil-fuel power generations produces two effects: the ‘saving effect’ and the ‘rebound effect’. The total CO2 emission in the whole industry decrease if the former effect exceeds the other, and vice versa. In addition, it is indicated that a rise in the generation efficiency would increase a difficulty of implementing carbon tax. In the second part of this chapter, I study the combination of feed-in tariff and carbon tax; that would be worthy to investigate since they could possibly complement each other. FIT policy could be financed by the revenue of carbon tax, and a reduction in electricity supply by the carbon tax would be lessen by supporting renewable power generations under FIT. It is demonstrated that FIT had the combined effects: it fosters a competitive environment in addition to indirectly reduces CO2 emissions. The result indicates that the combination of these policies would produce potential welfare gains.
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Mirsaeedi-Farahani, Shabnam. "Situating Iran in the geopolitics of fossil fuels, renewable energies and carbon emissions reductions." In Energy Sector Diversification in Iran, 23–45. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-11284-4_1.

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Velarde, Enrique. "Energy Transition in the Peruvian Mining Sector: Regulatory Approach or Just Private Self-Regulation?" In From Fossil Fuels to Low Carbon Energy Transition, 153–65. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-00299-1_9.

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Hurmekoski, Elias, Jyri Seppälä, Antti Kilpeläinen, and Janni Kunttu. "Contribution of Wood-Based Products to Climate Change Mitigation." In Forest Bioeconomy and Climate Change, 129–49. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99206-4_7.

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AbstractForest-based products––often referred to as harvested-wood products (HWPs)––can influence the climate through two separate mechanisms. Firstly, when wood is harvested from forests, the carbon contained in the wood is stored in the HWP for months to decades. If the amount of wood entering the market exceeds the amount of wood being discarded annually, this can lead to a HWP sink impact. Secondly, HWPs typically have a lower fossil carbon footprint than alternative products, so, for example, using wood in construction can lower fossil emissions by reducing the production of cement and steel, resulting in a substitution impact. The international greenhouse gas (GHG) reporting conventions and the related Intergovernmental Panel on Climate Change guidance covers the HWP sink impact, but not the substitution impacts. The HWP sink impact is restricted to tracing biogenic carbon flows, whereas the substitution impact typically covers fossil carbon flows exclusively. Importantly, the substitution and HWP sink impacts do not represent the climate- change mitigation impact of wood use, as such. Instead, they are important pieces of the broader puzzle of GHG flows related to the forest sector. This chapter presents the state-of-the-art approaches for determining the HWP sink and substitution impacts, and concludes with the policy and research implications.
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Conference papers on the topic "Fossil section"

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Crane, Cynthia Danielle. "THE IMPACT OF A LITTLE DIRT: THE SIGNIFICANCE OF AURORA FOSSIL MUSEUM’S FOSSIL PARK." In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273974.

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Hart, Dean. "KEEPING YOUTH ENGAGED IN FOSSIL CLUBS." In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273493.

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Ferrara, Chuck. "FOSSIL CLUBS AND SOCIETIES ARE STILL RELEVANT: THE PALEONTOLOGICAL CONTRIBUTIONS OF THE SOUTHWEST FLORIDA FOSSIL SOCIETY." In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273926.

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Daniel, Joseph. "FOSSIL VERTEBRATE DIVERSITY IN ARKANSAS." In 52nd Annual GSA South-Central Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018sc-310162.

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Powell, George W., and Cynthia Danielle Crane. "A WHALE OF A CHALLENGE: THE DEVELOPMENT OF A LARGE-SCALE FOSSIL DISPLAY AT THE AURORA FOSSIL MUSEUM." In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273953.

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Campbell, Matthew R. "PLIOCENE FOSSIL NODIPECTEN SCALLOPS FROM SOUTH CAROLINA." In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-326591.

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Hendy, Austin J. W., and Shawn Wiedrick. "REVISITING THE QUALITY OF CALIFORNIA'S FOSSIL RECORD." In 116th Annual GSA Cordilleran Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020cd-347562.

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Hegna, Thomas. "THE FOSSIL RECORD OF LARGE BRANCHIOPOD CRUSTACEANS." In 52nd Annual North-Central GSA Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018nc-312242.

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Stafford, Emily S., and Frank L. Forcino. "META-ANALYSIS OF FIELD-BASED FOSSIL COLLECTION METHODS." In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-326890.

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Paulk, Mallory, Tamie J. Jovanelly, and Jose Santamaria. "UPDATING THE GEORGIA FOSSIL RECORD (CAMBRIAN THROUGH OLIGOCENE)." In 66th Annual GSA Southeastern Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017se-291095.

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Reports on the topic "Fossil section"

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Tweet, Justin, Holley Flora, Summer Weeks, Eathan McIntyre, and Vincent Santucci. Grand Canyon-Parashant National Monument: Paleontological resource inventory (public version). National Park Service, December 2021. http://dx.doi.org/10.36967/nrr-2289972.

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Grand Canyon-Parashant National Monument (PARA) in northwestern Arizona has significant paleontological resources, which are recognized in the establishing presidential proclamation. Because of the challenges of working in this remote area, there has been little documentation of these resources over the years. PARA also has an unusual management situation which complicates resource management. The majority of PARA is administered by the Bureau of Land Management (BLM; this land is described here as PARA-BLM), while about 20% of the monument is administered by the National Park Service (NPS; this land is described here as PARA-NPS) in conjunction with Lake Mead National Recreation Area (LAKE). Parcels of state and private land are scattered throughout the monument. Reports of fossils within what is now PARA go back to at least 1914. Geologic and paleontologic reports have been sporadic over the past century. Much of what was known of the paleontology before the 2020 field inventory was documented by geologists focused on nearby Grand Canyon National Park (GRCA) and LAKE, or by students working on graduate projects; in either case, paleontology was a secondary topic of interest. The historical record of fossil discoveries in PARA is dominated by Edwin McKee, who reported fossils from localities in PARA-NPS and PARA-BLM as part of larger regional projects published from the 1930s to the 1980s. The U.S. Geological Survey (USGS) has mapped the geology of PARA in a series of publications since the early 1980s. Unpublished reports by researchers from regional institutions have documented paleontological resources in Quaternary caves and rock shelters. From September to December 2020, a field inventory was conducted to better understand the scope and distribution of paleontological resources at PARA. Thirty-eight localities distributed across the monument and throughout its numerous geologic units were documented extensively, including more than 420 GPS points and 1,300 photos, and a small number of fossil specimens were collected and catalogued under 38 numbers. In addition, interviews were conducted with staff to document the status of paleontology at PARA, and potential directions for future management, research, protection, and interpretation. In geologic terms, PARA is located on the boundary of the Colorado Plateau and the Basin and Range provinces. Before the uplift of the Colorado Plateau near the end of the Cretaceous 66 million years ago, this area was much lower in elevation and subject to flooding by shallow continental seas. This led to prolonged episodes of marine deposition as well as complex stratigraphic intervals of alternating terrestrial and marine strata. Most of the rock formations that are exposed in the monument belong to the Paleozoic part of the Grand Canyon section, deposited between approximately 510 and 270 million years ago in mostly shallow marine settings. These rocks have abundant fossils of marine invertebrates such as sponges, corals, bryozoans, brachiopods, bivalves, gastropods, crinoids, and echinoids. The Cambrian–Devonian portion of the Grand Canyon Paleozoic section is represented in only a few areas of PARA. The bulk of the Paleozoic rocks at PARA are Mississippian to Permian in age, approximately 360 to 270 million years old, and belong to the Redwall Limestone through the Kaibab Formation. While the Grand Canyon section has only small remnants of younger Mesozoic rocks, several Mesozoic formations are exposed within PARA, mostly ranging in age from the Early Triassic to the Early Jurassic (approximately 252 to 175 million years ago), as well as some middle Cretaceous rocks deposited approximately 100 million years ago. Mesozoic fossils in PARA include marine fossils in the Moenkopi Formation and petrified wood and invertebrate trace fossils in the Chinle Formation and undivided Moenave and Kayenta Formations.
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2

Nelson, Margot, Michael Antonioni, Vincent Santucci, and Justin Tweet. Oxon Run Parkway: Paleontological resource inventory; supplement to the National Capital Parks-East paleontological resource inventory. National Park Service, August 2021. http://dx.doi.org/10.36967/nrr-2287217.

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Oxon Run Parkway (OXRN) is a 51-hectare (126-acre) natural area within Washington, D.C. administered by the National Park Service under National Capital Parks East (NACE). The original plan called for a road, slated to follow Oxon Run stream, but this never came to fruition; despite this, the moniker stuck. The majority of the original Oxon Run Parkway is managed by the District of Columbia. The section of Oxon Run Parkway under NPS jurisdiction contains wetlands and forests, as well as the only McAteean magnolia bogs still remaining in the District. The lower Cretaceous Potomac Group, known as one of the few dinosaur-bearing rock units on the east coast of North America, crops out within Oxon Run. One of the most prevalent fossil-bearing resources are the siderite, or “bog iron” sandstone slabs that sometimes preserve the footprints or trackways of various vertebrates, including dinosaurs. Such trackways have been reported from Potomac Group outcrops throughout the Atlantic Coastal Plain of Maryland and Virginia. In 2019, National Capital Parks-East took possession of such a track, referred to a dinosaur, collected by paleontologist Dr. Peter Kranz. This report was compiled after a paleontological survey of Oxon Run Parkway and is intended as a supplement to the National Capital Parks East Paleontological Resource Inventory (Nelson et al. 2019). This report contains information on the history of Oxon Run Parkway and its geology, as well as discussion of the fossil track.
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3

Wise, M. A., M. G. Woodruff, and W. B. Ashton. Analysis of the industrial sector representation in the Fossil2 energy-economic model. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/7204200.

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Wise, M. A., M. G. Woodruff, and W. B. Ashton. Analysis of the industrial sector representation in the Fossil2 energy-economic model. Office of Scientific and Technical Information (OSTI), August 1992. http://dx.doi.org/10.2172/10168284.

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5

Steinberg, M., Yuanji Dong, and R. H. Borgwardt. The coprocessing of fossil fuels and biomass for CO{sub 2} emission reduction in the transportation sector. Office of Scientific and Technical Information (OSTI), October 1993. http://dx.doi.org/10.2172/142498.

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6

Villamil, Julie, Caique Lara, Anthony Abrahao, Aparna Arvelli, Guilherme Daldegan, Sharif Sarker, and Dwayne McDaniel. Development of a Pipe Crawler Inspection Tool for Fossil Energy Power Plants. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009772.

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Fossil fuel power plants are complex systems containing multiple components that create extreme environments for the purpose of extracting usable energy. Failures in the system can lead to increased down time for the plant, reduction of power and significant cost for repairs. In the past, inspections and maintenance of the plant's superheater tubes has been predominantly manual, laborious, and extremely time consuming. This is due to the pipe's small diameter size (between 1.3 and 7.6 cm) and the coiled structure of the tubing. In addition, the tubes are often stacked close to each other, limiting access for external inspection. Detection of pipe degradation, such as increased levels of corrosion, creep, and the formation of micro-cracks is possible using standard non-destructive evaluation (NDE) methods, including ultrasonic, radiography and electromagnetic methods. However, when the access to the sub-systems is limited or the configuration of the structure is prohibitive, alternative methods are needed for deploying the NDE tools. This research effort considers a novel robotic inspection system for the evaluation of small pipes found in typical boiler superheaters that have limited access. The pipe crawler system is an internal inspection device that can potentially navigate through the entire pipe length using linear actuators to grip the walls and inch along the pipe. The modular nature of the system allows it to traverse through straight sections and multiple 90-degree and 180-degree bends. The crawler is also capable of providing visual inspections, ultrasonic thickness measurements, and generating inner diameter surface maps using LiDAR (light detection and ranging). Ultimately, the development of this robotic inspection tool can provide information regarding the structural integrity of key pipeline components in fossil fuel power plants that are not easily accessible
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Alarcón, Arturo, Juan Alberto, Cecilia Correa, Edwin Malagon, Emilio Sawada, Hector Baldivieso, and Gabriel Rocha. Analysis of the Policy and Market Framework for Hydro Pumped Storage in Latin America and the Caribbean. Inter-American Development Bank, October 2021. http://dx.doi.org/10.18235/0003721.

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In the next decades, the evolution of the power sector in the region will be based on a combination of large-scale and centralized power plants, distributed generation, and even isolated microgrids. Storage technologies will be crucial to enable the management of the intrinsic variability of some renewable generation (wind and solar), particularly in scenarios where there is a need to reduce fossil fuels used for base generation. Pumped Storage Hydropower (PSH) technologies are an attractive alternative, given the regions hydropower potential, existing installed capacity, and technical knowledge. This paper explores the policy and market framework in LAC for this technology.
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Constenius, Kurt N., and A. J. Wells. Fossil Fusulinid Re-Evaluation Results for U.S. Geological Survey Thin Sections from the Aspen Grove, Charleston, Granger Mountain, Springville, and Wallsburg Ridge Quadrangles, Utah. Utah Geological Survey, July 2020. http://dx.doi.org/10.34191/ofr-722.

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9

Petit, Vincent. Road to a rapid transition to sustainable energy security in Europe. Schneider Electric Sustainability Research Institute, October 2022. http://dx.doi.org/10.58284/se.sri.bcap9655.

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Decarbonization and energy security in Europe are two faces of the same coin. They are both related to the large dependency of the European Union economy on fossil fuels, which today represent around 70% of the total supply of energy. The bulk of these energy resources are imported, with Russia being the largest supplier, accounting for 40% of natural gas and 27% of oil imports. However, fossil fuels are also the primary root cause of greenhouse gas emissions, and the European Union is committed to reduce those by 55% by 2030 (versus 1990). This report is based on the landmark research from the Joint Research Center of the European Commission, the “Integrated Database of the European Energy Sector”, which for the first time mapped actual energy uses for each country within the European Union, across 17 sectors of activity, with data granularity at the level of each process step (or end-use) of each of these sectors. Our approach here has been to systematically review these process steps (or end-uses) and qualify the extent to which they could be electrified, effectively removing the demand for fossil fuels as a result. We have focused only on those process steps where technology was already widely available and for which we evaluated the switch to be relatively easy (or attractive). In other words, we estimated the impact of rapid electrification of “easy to abate” activities. The conclusion of this evaluation is that the share of electricity demand in the final energy mix could jump from around 20% today to 50%, which would drive a reduction in emissions at end-use of around 1,300 MtCO2 /y, as well as a drop in natural gas and oil supply of around 50%. As a result of such transformation, electricity demand would nearly double, with the bulk of that growth materializing in the building sector. Short-term, the challenge of addressing climate targets while providing for energy security is thus intimately connected to buildings. While such transition would certainly require major infrastructure upgrades, which may prove a roadblock to rapid deployment, we find that the combination of energy efficiency measures (notably digital) and distributed generation penetration (rooftop solar) could significantly tame the issue, and hence help accelerate the move away from fossil fuels, with energy spend savings as high as 80% across some building types; a major driver of change. Beyond this, further potential exists for electrification. Other measures on the demand-side will include deeper renovations of the industrial stock (notably in the automotive, machinery, paper, and petrochemical industries for which our current assessment may be underestimated) and further electrification of mobility (trucks). The transition of the power system away from coal (and ultimately natural gas) will then also play a key role, followed ultimately by feedstocks substitution in industry. Some of these transitions are already on the way and will likely bring further improvements. The key message, however, is that a significant opportunity revolves around buildings to both quickly decarbonize and reduce energy dependencies in Europe. Rapid transformation of the energy system may be more feasible than we think. We notably estimate that, by 2030, an ambitious and focused effort could help displace 15% to 25% of natural gas and oil supply and reduce emissions by around 500 MtCO2 /y (note that these savings would come on top of additional measures regarding energy efficiency and flexibility, which are not the object of this study). For this to happen, approximately 100 million buildings will need renovating, and a similar number of electric vehicles would need to hit the road.
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Legena, Henry, Brittney McKenzie, Aria Goodridge, Karyl Pivott, Joshua Austin, Kristen Lynch, Shamika Spencer, et al. Experimental Evidence on the Use of Biomethane from Rum Distillery Waste and Sargassum Seaweed as an Alternative Fuel for Transportation in Barbados. Inter-American Development Bank, May 2021. http://dx.doi.org/10.18235/0003288.

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This paper presents an alternative to the current use of gasoline and diesel for transportation in Barbados. By relying on experimental evidence, it shows that biomethane emanating from the combination of Sargassum seaweed that is found on the seashores of the country with wastewater from rum distillery production can be used to produce an alternative transportation fuel. If implemented successfully, this alternative combustion method can avoid as much as 1 million metric tons of CO2 emissions every year in the country. These findings have important implications for policymakers. First, they can contribute to the national objective of becoming fossil fuel free by 2030 and diversifying the energy matrix. Second, this alternative fuel can improve resilience to natural catastrophes, complementing the transition to renewables and diversification of the sector. Third, the impact on the tourism industry is expected to be high and positive, as the Sargassum seaweed has been declared a national emergency due to its prevalence on beach tourism spots.
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