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Добірка наукової літератури з теми "Geology, Stratigraphic Quaternary"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 29 липня 2024

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Статті в журналах з теми "Geology, Stratigraphic Quaternary"

Zolnikov, I. D., A. V. Shpansky, and M. V. Mikharevich. "PROBLEMS OF THE QUATERNARY STRATIGRAPHY OF THE SIBERIAN REGION." Geology and mineral resources of Siberia, no. 10s (December 2021): 3–6. http://dx.doi.org/10.20403/2078-0575-2021-10c-3-6.

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This special issue of the journal is devoted to modern controversial subjects arising during the research of the Siberian Quaternary system. The initiative to discuss these problems and new factual material that requires rethinking outdated stratigraphic constructions belonged to the section of the Quaternary system of SIBRMSK and was supported by leading experts actively working in the region. It should be noted that this issue does not cover all the unresolved issues on the geology, stratigraphy and paleogeography of the Quaternary period of Siberia.

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Shestopalov, Vyacheslav M., Oleksandr M. Ponomarenko, and Stella B. Shekhunova. "IN MEMORIAM OF PROFESSOR PETRO F. GOZHIK, ACADEMICIAN OF THE NATIONAL ACADEMY OF SCIENCES OF UKRAINE." Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine 14, no. 1 (May 20, 2021): 5–16. http://dx.doi.org/10.30836/igs.2522-9753.2021.232269.

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This article is devoted to the blessed memory of Petro F. Gozhik, prominent Ukrainian scientist in the fields of paleontology, stratigraphy, marine geology, Winner of the State Prizes of Ukraine in Science and Technology (1989, 2000), Merited Figure of Science and Technology of Ukraine (1997), Laureate of NAS Tutkovsky Prize (2008), Director of the Institute of Geological Sciences of the NAS of Ukraine (1997–2020), President of the Paleontological Society of Ukraine, Chairman of the National Stratigraphic Committee of Ukraine, initiator and the first Director of the National Antarctic Research Center (previously the Center for Antarctic Research of the NAS of Ukraine), Doctor of Geological and Mineralogical Sciences (1993), Professor (2008), Academician of the NAS of Ukraine (2006). Scientific interests of P. F. Gozhik were diverse, but, first he was an outstanding paleontologist and stratigrapher, Quaternary geologist, a renowned researcher of the Neogene — Quaternary fossil freshwater mollusks of the south of Eastern Europe. His works in Quaternary stratigraphy, paleogeography and the geological history of continental Ukraine and the Black Sea, the study of Quaternary mollusks, continental (alluvial, glacial, water-glacial, loess) and estuarine sediments became tabletop reference books.

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Tian, Shaobing, Ping Zhang, Tongxiao Shang, Huogen Chen, Yongxiang Li, and Shugang Xu. "Application of resistivity sounding in Quaternary stratigraphic division in Yixing, Eastern China." Journal of Geophysics and Engineering 19, no. 3 (June 1, 2022): 362–75. http://dx.doi.org/10.1093/jge/gxac025.

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Abstract Stratigraphic classification and correlation are fundamental for the study of regional geology, tectonic structures and paleogeographic evolution. Geological structures have undergone a dramatic change since the Quaternary. However, the division of the Quaternary stratigraphic boundary in southeastern China is debated. In this study, we used a direct current vertical electric sounding method to study the Quaternary strata in Yixing, Jiangsu, China. Using one-dimensional resistivity inversion and analyzing the regional geology and geological core data, the electrical features of the study area were evaluated. We found good agreement between the geological core data and lithological data, and we were able to identify two stratigraphic groups: the hilly sedimentary area in the southwest and the Tai Lake plain sedimentary area in the northeast. The latter can further subdivided into two parts. Division and classification of the Quaternary strata in the study area provide a basis for locating areas likely to have a high pore-confined water content (such as Gaoteng, Heqiao and Wanshi town), whereby useful information is provided for groundwater exploitation for emergency use.

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Slupik, A. A., F. P. Wesselingh, A. C. Janse, and J. W. F. Reumer. "The stratigraphy of the Neogene-Quaternary succession in the southwest Netherlands from the Schelphoek borehole (42G4-11/42G0022) – a sequence-stratigraphic approach." Netherlands Journal of Geosciences - Geologie en Mijnbouw 86, no. 4 (December 2007): 317–32. http://dx.doi.org/10.1017/s0016774600023556.

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AbstractWe investigate the stratigraphy of Neogene and Quaternary intervals of the Schelphoek borehole (Schouwen, Zeeland, the Netherlands). The Breda Formation (Miocene-Zanclean) contains three sequences separated by hiatuses. The Oosterhout Formation (Zanclean-Piacenzian) contains at least two sequences. This formation is overlain by seven sequences of the Gelasian Maassluis Formation that almost certainly represent glacial cycles. The three lowermost sequences are provisionally assigned to the Praetiglian (MIS 96, MIS 98 and MIS 100). A large hiatus exists between the top of the Maassluis Formation and the base of the late Middle to Late Quaternary succession. Due to extensivein situreworking of older strata (including fossils) at the base of several of the formations, their exact boundaries are difficult to establish. The Neogene succession in the Schelphoek borehole is compared to the stratigraphic successions in the Antwerp area to the south and the Dutch coastal area and continental platform to the north. Finally, the stratigraphic context of the Gelasian (‘Tiglian’) mammal fauna dredged from the bottom of a major tidal channel in the adjacent Oosterschelde is assessed by comparison with the Schelphoek borehole.

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Josenhans, H. W., J. Zevenhuizen, and R. A. Klassen. "The Quaternary geology of the Labrador Shelf." Canadian Journal of Earth Sciences 23, no. 8 (August 1, 1986): 1190–213. http://dx.doi.org/10.1139/e86-116.

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The regional distribution of glacial and postglacial sediments on the Labrador Shelf was mapped by medium- and high-resolution seismics and shows a succession of tills that extend to the continental shelf edge at approximately 600 m. The uppermost of these tills is less laterally extensive and does not occur on the Labrador Shelf bank tops in water depths less than 160 m. We infer that the last glacial episode was less extensive than the preceding ones. Glaciomarine stratified silts and postglacial muds are found overlying the upper till in the deep basins that separate the banks. The upper till, glaciomarine silts, and postglacial muds are interpreted to constitute one complete deglacial cycle. Radiocarbon age determination suggests this deglacial sequence began at approximately 20 000 years BP. On the northernmost Labrador Shelf and Hudson Strait, seismic evidence indicates a late glacial readvance locally deposited a till that overlies the glaciomarine sediments associated with the last glacial advance on the Labrador Shelf. The stratigraphic position of this Hudson Strait till suggests the local readvance occurred at approximately 8000 years BP. The acoustic stratigraphic framework (data) is ground truthed by a regionally extensive piston core and grab sample network. Multidisciplinary analysis of these sediment samples included X-ray, textural, geotechnical, paleontological, lithological, trace-element, and 14C analyses. The results confirm the acoustic interpretations and show that each of the stratigraphic units defined have unique and regionally consistent properties. Geotechnical analyses from the upper till indicate low shear strengths (± 25 kPa) and low to normal consolidation ratios (0.8–2.8), which we interpret to indicate deposition under low basal loading as a result of hydrostatic support on an ice shelf in a marine setting. Provenance studies on the sands and gravels from each of the stratigraphic units of the last deglacial sequence (i.e., till, glaciomarine silts, postglacial muds) indicate that the till is mostly derived from mainland Labrador and transported by an easterly ice flow. Since limestone outcrops are rare to absent on the Labrador mainland and continental shelf, high limestone concentrations (up to 80%) within the glaciomarine sediments that overlie the upper till indicate a northern and distal source for that unit. We interpret an active ice margin overlying the Paleozoic limestone outcrops in Hudson Strait and Ungava Bay as being the dominant source for the glaciomarine silts. The absence of limestone within the postglacial muds that overlie the glaciomarine silts indicates a significant change in provenance, which we attribute to the disappearance of the active ice margin over the limestone terranes. The depositional style and sedimentary structures within the glaciomarine silts indicate low bottom currents and a uniform rain out of ice-rafted (limestone) debris that extends to the southernmost part of the Labrador Shelf. The depositional style of the postglacial muds indicates a significant increase in bottom currents, with deposition restricted to the deep basins. We suggest these increased currents resulted from the disappearance of the Hudson Strait ice barrier, which allowed the Canadian current to develop and combine with the west Greenland current. This combination of currents occurred at approximately 8000 years BP and marks the inception of the Labrador current, which presently traverses the Labrador Shelf.

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Long, Joshua H., Till J. J. Hanebuth, and Thomas Lüdmann. "The Quaternary stratigraphic architecture of a low-accommodation, passive-margin continental shelf (Santee Delta region, South Carolina, U.S.A.)." Journal of Sedimentary Research 90, no. 11 (November 30, 2020): 1549–71. http://dx.doi.org/10.2110/jsr.2020.006.

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ABSTRACT The Quaternary stratigraphy of the continental shelf offshore of South Carolina consists of stratigraphic units deposited in coastal-plain, shallow marine, and shelfal environments bounded by composite erosional surfaces that developed in response to numerous glacioeustatic cycles and were overprinted by regional uplift. These units are commonly distributed laterally, rather than stacked vertically, a function of the long-term low shelf gradient and the resulting lack of accommodation. Additionally, marine processes such as waves and geostrophic currents can rework both relict and modern sediments across the continental shelf. This study integrates high-resolution geological and geophysical datasets acquired offshore and onshore with existing data onshore into a comprehensive conceptual model describing the Quaternary geologic evolution of the coastal plain and continental shelf within a study area of approximately 8,000 km2. We use seismic facies and core analysis to define stratigraphic units associated with transgressive, regressive, and lowstand systems offshore. Regressive systems include progradational wave- and river-dominated deltaic and shoreface deposits. Lowstand systems consist of a complex network of paleo-incisions produced by regional, Piedmont-draining fluvial systems and smaller coastal plain rivers. Transgressive systems include paleochannel-fill successions dominated by mud-rich, tidally influenced backbarrier deposits, cuspate and linear shelf sand ridges, and transgressive sand sheets and shoals. The low-accommodation setting of the continental shelf influences the stratigraphic record in several ways: 1) the geometry of progradational coastal lithosomes, 2) the development of composite allogenic erosional surfaces, 3) the deposition of widespread, thin transgressive sand sheets, and 4) the restriction of thicker transgressive deposits to paleo-incisions. In this setting, the use of a bounding surface scheme that is hierarchical is preferable to the more common sequence stratigraphic or allostratigraphic convention for several reasons: 1) major erosional bounding surfaces are commonly amalgamated; 2) lower-order surfaces capture internal variability, which is key to the genetic interpretation of stratigraphic units, and 3) stratal stacking patterns typically used to define a sequence stratigraphic framework are rare.

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Cooper, A. J. "Waste disposal site selection techniques in Quaternary terraine Ontario, Canada." Geological Society, London, Engineering Geology Special Publications 7, no. 1 (1991): 211–17. http://dx.doi.org/10.1144/gsl.eng.1991.007.01.19.

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AbstractThick and predictable deposits of fine grained Quaternary materials have been used for the siting of waste management facilities in Ontario. The search for such sites is founded on the application of techniques in Quaternary geology and hydrogeology. Two examples are presented. Oxford County is located southwest of Toronto in an area of parallel morainic ridges separated by flat till plains. Conventional wisdom would focus on the till plains for thick, consistent fine grained Quaternary Sediments. However, the careful analysis of the Quaternary stratigraphy and glacial history revealed that better sites are located along the moraines. A site on the Ingersoll Moraine was studied in detail and defended at a public hearing. Concerns about the geology of the materials were allayed by the confirmation of homogeneous clayey silt materials exposed when the site opened in late 1986. A much wider ranging search was undertaken for a major hazardous and liquid industrial waste treatment and disposal facility for the Province of Ontario. Progressively more detailed investigations of the Quaternary geology were used to assist a multi-disciplinary site selection team. Initial interpretations covered an area of 75 000 km2 at a scale of 1:250 000. Eight candidate sites were then selected for further investigation with five continuously sampled stratigraphic boreholes. The chosen site is located in a depression in the bedrock filled with 40 m of glaciolacustrine clayey silt. Site specific hydrogeological and geotechnical studies were integrated with a detailed geological investigation.

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Aiello, Gemma, and Mauro Caccavale. "Quaternary Evolution of Ischia: A Review of Volcanology and Geology." Applied Sciences 13, no. 6 (March 10, 2023): 3554. http://dx.doi.org/10.3390/app13063554.

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Ischia shows intriguing and complex geology, which has been deeply investigated. In this paper, a reappraisal of the Quaternary geologic evolution of Ischia based on literature data is advised, concentrating on the volcanology of the island, based on field data and geochemistry, due to the happening of active fumarolic systems on the island and the marine geology and geophysics, which are intensively studied in the frame of the CARG Project. The literature studies have been incorporated with the geological interpretation of high-resolution seismic profiles, partly previously published and herein reorganized with the aim to highlight the geologic evolution of the different sectors of the island (northern Ischia, southern Ischia). The outcrop data have shown the deposits of ten explosive eruptions: among them, we focused on the S. Angelo Tephra. The laccolith model has been described in order to explain the resurgence of Ischia starting from 55 ky B.P. Geochemical information has been synthesized to reconstruct the volcano-tectonic development of Ischia during the last 55 ky B.P. Different models of block resurgence of Ischia have been discussed, based on literature studies. These aspects have supplemented the Quaternary geologic evolution of Ischia. While the northern Ischia offshore shows complex stratigraphic relationships between buried volcanic edifices, the southern Ischia offshore has been mainly commanded by erosional activities, progressive next to a dense system of submarine channels, and by the volcano-tectonic activities, which have triggered off the location of the Ischia Debris Avalanche.

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Gaudenyi, Tivadar, Drazenko Nenadic, Mladjen Jovanovic, and Petar Stejic. "The revision of quaternary stratigraphy of the Zrenjanin artesian well borehole profile (Banat, Vojvodina, Serbia)." Annales g?ologiques de la Peninsule balkanique, no. 00 (2022): 7. http://dx.doi.org/10.2298/gabp210306007g.

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The geological analysis of artesian borehole material from Sombor, Subotica, and Zrenjanin, was in the first campaign of detailed stratigraphic studies of Vojvodina in 1892-1895. The results of Quaternary stratigraphy from Zrenjanin were published by HalavAts m ore than a decade later (1914). The significance of the Zrenjanin, Sombor, and Subotica artesian well profiles for more than a century is considered the representative local profiles for the Quaternary stratigraphy of Vojvodina recognized by Serbian (Yugoslavian) and Hungarian geologists. Significant changes were after the taxonomical revision of molluscan material and its stratigraphic context, which was done through the excellent work of Krolopp in the 1970-ies. Unfortunately, the mentioned changes were not applied in the studies during the geological surveying of former Yugoslavia. The developments in Quaternary geology, changes in the Quater nary chronostratigraphic scale, and the results shown by this paper enable the Lower Pleistocene fluvial deposits to be defined as the Pleistocene Corbicula beds, the Viviparus boeckhi Horizon. The Lower Pleistocene at Zrenjanin was documented from 234.54 to 58.36 m depth. The interval between 234.54 and 208.50 m comprises the Upper Paludina - Viviparus vucotinovici zone, while the Viviparus boeckhi Horizons were identified between 135.18 m and 58.36 m. The interval between 58.36 m and 37.75 m is defined as Pleistocene (Lower- and Middle Pleistocene) based on sedimentological and the molluscan record. The interval from 37.75 m to 21.67 m depth was identified as Middle Pleistocene, according to its lithology and the paleontological material. The fluvial sediments? 21.69 m and 7.31 m depths cannot be determined according to the faunistic data; we can only consider them as Pleistocene age. The Holocene sediment and soil horizons ascend to a 2.90 m depth.

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Amos, Salvador. "A stable Cenozoic geologic time scale is indispensable." GeoArabia 11, no. 4 (October 1, 2006): 155–57. http://dx.doi.org/10.2113/geoarabia1104155.

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A stable, standard geologic time scale is indispensable for the clear and precise communication among geologists; it is a basic tool of geologic work. Considerable progress has been made to achieve such a stable time scale. However, during the last few years several proposals have been made to modify the Cenozoic section of the geologic time scale that threaten to destabilize it. Seven articles published in Episodes since 2000 that could contribute to this destabilization are discussed. They provide excellent examples of the profusion of different terminologies, hierarchies, and stratigraphic relationships that have been proposed: to eliminate the Tertiary and the Quaternary or to raise their rank to suberathems; to extend the Neogene to the present, to make the Quaternary a formal subsystem of the Neogene, or consider it an informal stratigraphic unit; to eliminate the Holocene, and to decouple the base of the Pleistocene from the base of the Quaternary. If adopted, these proposals would cause nothing but great confusion and controversy. They disregard the clear preferences of geologists the world over as reflected by the terminology they have been using for many decades. Common sense would dictate the continued use of this terminology in its current, widely accepted form.

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Дисертації з теми "Geology, Stratigraphic Quaternary"

Grun, Rainer Wolfgang. "Contributions to quaternary geochronology." Phd thesis, Canberra, ACT : The Australian National University, 1995. http://hdl.handle.net/1885/145307.

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Chung, Yi-tak Teresa. "Quaternary stratigraphy of an offshore borehole from northern Lantau, Hong Kong." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42904730.

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Isler, Ekrem Bursin. "Late quaternary stratigraphic and tectonic evolution of the northeastern Aegean Sea /." Internet access available to MUN users only, 2005. http://collections.mun.ca/u?/theses,147122.

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Abbott, James T. "Late Quaternary alluviation and soil erosion in Southern Italy /." Digital version accessible at:, 1997. http://wwwlib.umi.com/cr/utexas/main.

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Zhang, Jiafu. "Development and application of luminescence dating to quaternary sediments from China." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22266628.

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Batterson, Martin J. "Quaternary history, palaeo-geography and sedimentology of the Humber River basin and adjacent areas /." Internet access available to MUN users only, 1998. http://collections.mun.ca/u?/theses,57121.

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Chui, Wai-hong. "Geology and engineering properties of offshore quaternary sediments in the Yam O reclamation area, Lantau Island." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B42577561.

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Scott, Sharon. "Quaternary glaciomarine events, Springdale-Hall's Bay area, north-central Newfoundland." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0034/MQ47474.pdf.

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張家富 and Jiafu Zhang. "Development and application of luminescence dating to quaternary sediments from China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31242662.

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Chan, Kin-chung. "The application and significance of sediment colour intensity on the study of offshore quaternary deposits." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B42577202.

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Книги з теми "Geology, Stratigraphic Quaternary"

Bednarski, Jan M. Quaternary geology of northeastern Alberta. [Ottawa, Ont.]: Geological Survey of Canada, 1999.

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Pécsi, Márton. Quaternary and loess research. Budapest: Geographical Research Institute, Hungarian Academy of Sciences, 1993.

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Barnett, P. J. Quaternary history of southern Ontario. Ottawa: National Research Council of Canada, 1987.

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Walker, M. J. C. 1947-, ed. Reconstructing Quaternary environments. London: Longman, 1987.

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E, Gordon J., Sutherland D. G, and Joint Nature Conservation Committee (Great Britain), eds. The Quaternary of Scotland. London, UK: Chapman and Hall, 1993.

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Edward, Derbyshire, and Owen Lewis A, eds. Quaternary of the Karakoram. Berlin: Gebrüder Borntraeger, 1989.

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Kempton, John P. Key stratigraphic control (quaternary): SSC area. Champaign, IL: Illinois State Geological Survey, 1990.

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J, Williams M. A., ed. Quaternary environments. London: Edward Arnold, 1993.

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S, Campbell, and Joint Nature Conservation Committee (Great Britain), eds. Quaternary of South-West England. London: Chapman & Hall, 1998.

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Attig, John W. Quaternary geology of northern Oconto County, Wisconsin. Madison, Wis: University of Wisconsin-Extension, Wisconsin Geological and Natural History Survey, 1999.

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Частини книг з теми "Geology, Stratigraphic Quaternary"

Al-Helal, Anwar, Yaqoub AlRefai, Abdullah AlKandari, and Mohammad Abdullah. "Subsurface Stratigraphy of Kuwait." In The Geology of Kuwait, 27–50. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16727-0_2.

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AbstractThis chapter reviews the subsurface stratigraphy of Kuwait targeting geosciences educators. The lithostratigraphy and chronostratigraphy of the reviewed formations (association of rocks whose components are paragenetically related to each other, both vertically and laterally) followed the formal stratigraphic nomenclature in Kuwait. The exposed stratigraphic formations of the Miocene–Pleistocene epochs represented by the Dibdibba, Lower Fars, and Ghar clastic sediments (Kuwait Group) were reviewed in the previous chapter as part of near-surface geology. In this chapter, the description of these formations is based mainly on their subsurface presence. The description of the subsurface stratigraphic formations in Kuwait followed published academic papers and technical reports related to Kuwait’s geology or analog (GCC countries, Iraq and Iran) either from the oil and gas industry or from different research institutions in Kuwait and abroad. It is also true that studies related to groundwater aquifer systems also contribute to our understanding of the subsurface stratigraphy of Kuwait for the shallower formations. The majority of the published data were covered the onshore section of Kuwait. The subsurface stratigraphic nomenclature description is based on thickness, depositional environment, sequence stratigraphy, the nature of the sequence boundaries, biostratigraphy, and age. The sedimentary strata reflect the depositional environment in which the rocks were formed. Understanding the characteristics of the sedimentary rocks will help understand many geologic events in the past, such as sea-level fluctuation, global climatic changes, tectonic processes, geochemical cycles, and more, depending on the research question. The succession of changing lithological sequences is controlled by three main factors; sea-level change (eustatic sea level), sediment supply, and accommodation space controlled by regional and local tectonics influences. Several authors have developed theoretical methods, established conceptual models, and produced several paleofacies maps to interpret Kuwait’s stratigraphic sequence based on the data collected over time intervals from the Late Permian to Quaternary to reconstruct the depositional history of the Arabian Plate in general and of Kuwait to understand the characteristics of oil and gas reservoirs.

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Lam, Doan Dinh, and Nguyen Khac Su. "Stratigraphic Sequence of the Con Moong Cave, Thanh Hoa Province, and Its Implications for the Upper Quaternary Stratigraphy of Northern Vietnam." In Springer Geology, 957–64. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_180.

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Hernández, Leandro L. Peñalver, Miguel Cabrera Castellanos, and Roberto Denis Valle. "Stratigraphy of the Quaternary Deposits in Cuba." In Geology of Cuba, 231–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67798-5_7.

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Kim, Dae Choul, Sung Ho Bae, Gwang Soo Lee, Seong Pil Kim, Hi Il Yi, and Kap Sik Jeong. "Sequence Stratigraphy of Late Quaternary Deposits in the Southeastern Yellow Sea of Korea." In Springer Geology, 803–8. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_151.

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Chabaud, Ludivine, Emmanuelle Ducassou, Thierry Mulder, and Jacques Giraudeau. "Isotope Stratigraphy and Biostratigraphy of a Modern Carbonate System: The Northern Bahamas Slope Over the Late Quaternary." In Springer Geology, 1287–91. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_246.

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Vanneste, Lieve E., and Robert D. Larter. "Deep-Tow Boomer Survey on the Antarctic Peninsula Pacific Margin: An Investigation of the Morphology and Acoustic Characteristics of the Late Quaternary Sedimentary Deposits on the Outer Continental Shelf and Upper Slope." In Geology and Seismic Stratigraphy of the Antarctic Margin, 97–121. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/ar068p0097.

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Speed*, Robert C., and Hai Cheng†. "Geology of southeastern Barbados." In Emergence and Evolution of Barbados, 45–126. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.2549(03).

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ABSTRACT This chapter presents geological documentation of Quaternary (and perhaps older) event histories of southeastern Barbados. The Barbados Limestone is herein formally defined. A time-stratigraphic division of the Barbados Limestone in southeastern Barbados and the properties of the stratigraphic units are presented. A major finding of this study is that the marine terraces originated wholly by marine erosion, not by reef construction, and evolved in stages over a long duration. The hydrology and thickness data of the Barbados Limestone are discussed, and hypotheses on causes of thickness variations are given. The study domain is divided into seven areas that contain a continuous flight of nine marine terraces preserved in various partial sequences. Discussions of these key seven areas in southeastern Barbados are supported by geologic maps at large scale and cross sections. Sections with VE > 1 display limestone stratigraphy and facies over relatively large lengths. Sections with VE = 1 show true structural configurations over short lengths. Detailed observations and radio isotopic dating of the limestone units permit differentiation and correlation among them.

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Graymer, R. W., and V. E. Langenheim. "Geologic framework of Mount Diablo, California." In Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.1217(01).

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ABSTRACT The basic stratigraphic and structural framework of Mount Diablo is described using a revised geologic map, gravity data, and aeromagnetic data. The mountain is made up of two distinct stratigraphic assemblages representing different depocenters that were juxtaposed by ~20 km of late Pliocene and Quaternary right-lateral offset on the Greenville-Diablo-Concord fault. Both assemblages are composed of Cretaceous and Cenozoic strata overlying a compound basement made up of the Franciscan and Great Valley complexes. The rocks are folded and faulted by late Neogene and Quaternary compressional structures related to both regional plate-boundary–normal compression and a restraining step in the strike-slip fault system. The core of the mountain is made up of uplifted basement rocks. Late Neogene and Quaternary deformation is overprinted on Paleogene extensional deformation that is evidenced at Mount Diablo by significant attenuation in the basement rocks and by an uptilted stepped graben structure on the northeast flank. Retrodeformation of the northeast flank suggests that late Early to early Late Cretaceous strata may have been deposited against and across a steeply west-dipping basement escarpment. The location of the mountain today was a depocenter through the Late Cretaceous and Paleogene and received shallow-marine deposits periodically into the late Miocene. Uplift of the mountain itself happened mostly in the Quaternary.

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Holliday, Vance T. "Soil Stratigraphy." In Soils in Archaeological Research. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195149654.003.0008.

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Soils have been employed in archaeological stratigraphy since at least the 1930s, including topical discussions of the significance of soils in stratified deposits (e.g., Leighton, 1936, 1937; Bryan and Albritton, 1943). This apparently was for several reasons. The unique physical and chemical properties that distinguish soils from sediments make soils quite useful for stratigraphic subdivision and correlation. In particular, pedologic features, most notably soil horizons, are often the most visually prominent features in stratified deposits. Furthermore, much of the early archaeological pedology was done by individuals trained in Quaternary geology (e.g., Leighton, 1937; Bryan, 1941a; Bryan and Albritton, 1943; Movius, 1944, pp. 49–62), in which soils have been recognized as stratigraphically important since the late 19th century (Bowen, 1978, pp. 10–56; Finkl, 1980; Tandarich, 1998a). The recognition of soils and the differentiation of soils from sediments in archaeological contexts is one of the most fundamentally significant aspects of geoarchaeological stratigraphy. This initial step in stratigraphic interpretation is crucial to most of the applications of pedology and soil geomorphology discussed in subsequent chapters. Because soils indicate periods of stability or hiatuses in deposition, the identification of soils or the lack thereof in a stratigraphic sequence provides information on the number of depositional episodes and intervals of stability. The identification of specific soil horizons also provides clues to the degree and duration of soil development, the nature of the soil-forming environment, and the kinds of soil-forming processes that may affect the archaeological record. Further, tracing of soils from exposure to exposure is a key aspect of correlating strata and interpreting the evolution of archaeological landscapes. This chapter presents a discussion of some principals of soil stratigraphy, and the following chapter focuses on the archaeological significance of soils as stratigraphic units. This chapter begins with a discussion of basic stratigraphy, which is one of the fundamental components of field-based geoscience. That section is followed by a closer look at soil stratigraphy, including a summary of both formal and informal soil stratigraphic nomenclature as well as a discussion of the unique characteristics of soils when used as stratigraphic markers and their archaeological implications.

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Kelly, S. B., and J. M. Cubitt. "Milankovitch Cyclicity In The Stratigraphic Record— A Review." In Computers in Geology - 25 Years of Progress. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195085938.003.0016.

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The Milankovitch or astronomical theory of paleoclimates relates climatic variation to the amount of solar energy available at the Earth's surface. The theory helps explain periodic, climatically related phenomena such as the Pleistocene ice ages. Identification of Milankovitch cyclicity within sediments demonstrates the influence of climate on sedimentation patterns and creates a time frame for the estimation of basin subsidence rates. Spectral analysis of deep sea and ice cores indicates periodic climatic fluctuations during Tertiary and Quaternary times. These fluctuations are strongly cyclical with low frequencies centered at periods around 400 ka and 100 ka together with shorter periodic components of approximately 41 and 21 ka. Lower frequencies reflect eccentricity of the Earth's orbit; 41- and 21-ka components are associated with periodic changes in the tilt of the Earth's axis and the precession of the equinoxes. Astronomically forced glacial eustasy results in distinct stratigraphic units or parasequences of widespread extent. Milankovitch band parasequences occur in both carbonate and clastic shelf systems, including cyclothemic Upper Paleozoic successions of North America. During the 1920's and 30's the Serbian mathematician Milutin Milankovitch studied cyclical variations in three elements of the Earth-Sun geometry: eccentricity, precession, and obliquity, and was able to calculate the Earth's solar radiation history for the past 650 ka (Milankovitch, 1969). Berger (1978, 1980) accurately determined the periodicities of the three orbital variations. Eccentricity—The Earth's orbit around the Sun is an ellipse; this results in the seasons. The eccentricity of the Earth's orbit periodically departs further from a circle and then reverts to almost true circularity. Periodicities are located around 413, 95, 123, and 100 ka. Secondary peaks appear to be located around 50 and 53 ka. There are further important periodicities at 1.23, 2.04, and 3.4 ma (Schwarzacher, 1991). Precession—Precession refers to variation in time of year at which the Earth is nearest the Sun (perihelion). This variation is caused by the Earth wobbling like a top and swiveling on its axis. Periodicities of 23,000, 22,400, 18,980, and 19,610 yr are recognized and often simplified to two periods of 19 and 23 ka. Secondary peaks are also located around 30 and 15 ka.

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Тези доповідей конференцій з теми "Geology, Stratigraphic Quaternary"

Hill, Christopher, and Jacek Kabaciński. "SEDIMENTARY GEOLOGY AND GEOCHRONOLOGY OF QUATERNARY STRATIGRAPHIC SEQUENCES IN THE SOUTHERN EGYPTIAN SAHARA." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-379778.

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Hill, Christopher L., Jacek Kabaciński, and Agnieszka Czekaj-Zastawny. "QUATERNARY GEOLOGY AND GEOMORPHOLOGY IN SOUTHERN EGYPT: SEDIMENTARY AND STRATIGRAPHIC EVIDENCE FOR ENVIRONMENTAL CHANGE AND LANDSCAPE EVOLUTION AT BIR TARFAWI, BIR SAHARA, AND GEBEL RAMLAH." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-317129.

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Ives, Libby R. W., J. Elmo Rawling, J. Elmo Rawling, Kacie C. Stolzman, and Kacie C. Stolzman. "LANDFORM ASSEMBLAGES, QUATERNARY STRATIGRAPHY, AND PRELIMINARY QUATERNARY GEOLOGIC MAP, JEFFERSON COUNTY, WISCONSIN." In 54th Annual GSA North-Central Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020nc-347878.

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Valachovics, Thomas, T. Andrew Nash, and Tyler Norris. "QUATERNARY GEOLOGY OF PICKAWAY COUNTY, OHIO: THE GEOMORPHOLOGY, STRATIGRAPHY, AND CHRONOLOGY OF TWO LATE WISCONSIN GLACIAL ADVANCES IN CENTRAL OHIO." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-390636.

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Звіти організацій з теми "Geology, Stratigraphic Quaternary"

Bédard, K., A. Marsh, M. Hillier, and Y. Music. 3D geological model of the Western Canadian Sedimentary Basin in Saskatchewan, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331747.

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The Western Canadian Sedimentary Basin (WCSB) covers a large part of southern Saskatchewan and hosts many resources such as critical mineral deposits (i.e. potash, helium and lithium) as well as oil and gas reservoirs and is also targeted for deep CO2 storage projects. There is also growing interest in the groundwater resources, the geothermal potential and hydrogen recovery potential. These applications require knowledge of the subsurface geology such as formation thickness and depth, relationships with adjacent formations or unconformities and ultimately, distribution of physical properties within the basin. 3D geological models can provide this knowledge since they characterize the geometry of subsurface geological features. In addition, they can be used as a framework for fluid flow simulation and estimating the distribution a variety of properties. The 3D geological model presented in this report consists of 51 geological units of which, 49 are stratigraphic units spanning from Cambrian Deadwood Formation at the base of the sequence to Upper Cretaceous Belly River Formation at the top, plus the undivided Precambrian and a preliminary Quaternary unit. The model is cut by 7 major regional unconformities, including the base of the Quaternary sediments. The regional model was constrained using oil and gas well data interpretations, provincial scale bedrock geology maps and knowledge from the previously interpreted areal extent of the Phanerozoic strata. A hybrid explicit-implicit modelling approach was employed to produce the 3D geological model of the WCSB in Saskatchewan using Gocad/SKUATM geomodelling software.

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Holme, P. H. J., S. R. Hicock, and L. E. Jackson. Quaternary geology and terrain inventory, Eastern Cordillera NATMAP Project. Report 5: stratigraphic correlations of glacial deposits in the Beaver Mines map area, southwestern Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209949.

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Hodgson, D. A. Quaternary Stratigraphy and Chronology [Chapter 6: Quaternary Geology of the Queen Elizabeth Islands]. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/131547.

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Josenhans, H. Surficial geology, quaternary stratigraphy and paleoenvironments of Queen Charlotte Basin. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/194143.

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Hammond, Becky J. Interim Geologic Map of the Jarvis Peak Quadrangle, Washington County, Utah (GIS Reproduction of UGS OFR-212 [1991]). Utah Geological Survey, December 2023. http://dx.doi.org/10.34191/ofr-753dr.

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The Jarvis Peak Quadrangle in southwestern most Utah encompasses the southern portion of the Beaver Dam Mountains and lies within the transition zone between the Colorado Plateau and Basin and Range physiographic provinces. The Beaver Dam Mountain uplift isa northwest-trending, doubly-plunging anticline bounded on the east by the Shivwits syncline. These major folds were developed during the late Mesozoic-early Cenozoic Sevier-Laramide orogeny and are truncated on the east by the Grand Wash-Reef Reservoir-Gunlock fault zone. The Grand Wash fault is a major normal fault that extends southward from the quadrangle to the Grand Canyon. Late Cenozoic (late Miocene to quaternary) extension also caused gravity sliding and attenuation faulting along both sides of the range. The stratigraphic section exposed in the quadrangle ranges in age from Precambrian to Triassic and totals approximately 14,000 feet. The Silurian and Ordovician are the only periods not represented. Surficial units include Quaternary-Tertiary and Quaternary alluvial gravels, pediments, talus, colluvium and landslide materials. Commodities mined from or occurring in the quadrangle include lead, zinc, silver, copper, gallium, germanium, gypsum and sand and gravel.

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Andrews, J. T. Amino Acid Stratigraphy [Chapter 3: Quaternary Geology of the Canadian Shield]. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127967.

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Josenhans, H., and J. Zevenhuizen. Ninstints and approaches: surficial geology, Quaternary stratigraphy and paleo-sea levels. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207607.

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Josenhans, H., and J. Zevenhuizen. Juan Perez Sound: surficial geology, Quaternary stratigraphy and paleo-sea levels. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207608.

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Jackson, L. E., E. R. Leboe, E. C. Little, P. J. Holme, S R Hicock, K. Shimamura, and F. E N Nelson. Quaternary stratigraphy and geology of the Rocky Mountain Foothills, southwestern Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2008. http://dx.doi.org/10.4095/224301.

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Josenhans, H., and H. Zevenhuizen. Huston and Skincuttle Inlets: surficial geology, Quaternary stratigraphy and paleo-sea levels. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207601.

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