Dissertations / Theses on the topic 'Palynology'
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Seetharam, Y. N. "Clusiaceae : palynology and systematics /." Pondichéry : [Paris] : Institut français ; [diff. J. Maisonneuve], 1985. http://catalogue.bnf.fr/ark:/12148/cb36651527x.
Full textScotland, Robert Winning. "Palynology and systematics of Acanthaceae." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333341.
Full textFrancis, Elizabeth. "The palynology of the Glencloy area." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317068.
Full textAl-Ghammari, Mutasam. "Ordovician-Silurian palynology of Oman. Vol.1." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531197.
Full textWarnes, Malcolm D. "The palynology of the Ohai coalfield, Southland." Thesis, University of Canterbury. Geology, 1988. http://hdl.handle.net/10092/10440.
Full textLlewellyn, Rhian. "Palynology through the early Wenlock Ireviken Event." Thesis, University of Portsmouth, 2015. https://researchportal.port.ac.uk/portal/en/theses/palynology-through-the-early-wenlock-ireviken-event(e49e9e01-6288-4e69-8e6e-6de11ce90142).html.
Full textDolez, Ludovic. "Évolution des paysages végétaux en Languedoc durant l’Holocène : apport de la palynologie à l’étude des milieux et des agrosystèmes." Thesis, Montpellier 3, 2018. http://www.theses.fr/2018MON30076/document.
Full textThis thesis studies the evolution of environments and agricultural systems in Languedoc during the last ten millennia through the paleo-vegetation. Reassessing old research, this work refines the temporal resolution of the landscape changes and provides vision at the western Languedoc scale, by the study of Aude and Hérault rivers watershed. From the pollen analyzes of cores drilled in lagoons close to Agde and Narbonne, this work highlights the coevolution between agricultural systems and environments, both long time and Man time, analyzing particularities and dynamic connections between these two watersheds like the territorial exploitation strategies developed by humans, the use of specific plant resources and the types and areas of crops and pastures, in coastal areas and in the Languedoc hinterland
Watanasak, Manas. "Mid-tertiary palynology of onshore and offshore Thailand /." Title page, contents and abstract only, 1988. http://web4.library.adelaide.edu.au/theses/09PH/09phm267.pdf.
Full textWhelan, Gillian M. "The palynology of selected Ordovician localities in Scotland." Thesis, University of Glasgow, 1988. http://theses.gla.ac.uk/872/.
Full textGray, Catherine Elizabeth Darnell. "Characterising the Namaqualand Mudbelt: Chronology, Palynology and Palaeoenvironments." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/4856.
Full textWhelan, Gillian Mary. "The palynology of selected Ordovician localities in Scotland." Connect to e-thesis, 1988. http://theses.gla.ac.uk/872/.
Full textPh.D. thesis submitted to the Faculty of Science, Department of Geology, University of Glasgow, 1988. BLL : DX170958/93. Includes bibliographical references. Print version also available.
Wang, Xia-Cheng. "Post-glacial vegetation history of the Aishihik Basin and its vicinity, southwest Yukon Territory, Canada: A palynological perspective." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5948.
Full textBourgeois, Jocelyne C. "Modern and holocene pollen assemblages from Arctic ice caps." Thesis, University of Ottawa (Canada), 2000. http://hdl.handle.net/10393/8535.
Full textAskew, Alexander J. "The Middle Devonian palynology and biostratigraphy of northern Spain." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/22442/.
Full textGlaister, Christopher Graham. "Palynology of late Pleistocene marine sediments in North Denmark." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621662.
Full textUwins, Philippa Joanne Rashleigh. "Early to mid Cretaceous palynology of Cyrenaica, northeast Libya." Thesis, University of Aberdeen, 1987. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010065.
Full textSimpson, David James. "The palynology of the Haua Fteah, Cyrenaica, Eastern Libya." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711903.
Full textHu, Feng Sheng. "An ecosystem approach to the study of late-Quaternary environmental change in southwestern Alaska /." Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/5577.
Full textMarshall, Dawn Marie. "Ethnopalynological appplications in land and water based archaeology." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85781.
Full textRowett, A. "The megafossil and microfossil floras of the Curlew Formation, Queensland /." Title page, contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phr8812.pdf.
Full textPiper, Adrian T. "Evaluation of palynofacies analysis in the interpretation of depositional environments in the Middle Jurassic of Yorkshire." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295476.
Full textFitzpatrick, Meriel E. J. "Turonian dinoflagellate cyst assemblages from southern England." Thesis, University of Plymouth, 1992. http://hdl.handle.net/10026.1/2029.
Full textBaghai, Nina Lucille. "An analysis of palynomorphs from upper Cretaceous sedimentary rocks with emphasis in the Aguja Formation, Big Bend National Park, Brewster County, Texas /." Digital version, 1996. http://wwwlib.umi.com/cr/utexas/fullcit?p9719292.
Full textLangford, Mitchel. "Some applications of digital image processing for automation in palynology." Thesis, University of Hull, 1988. http://hydra.hull.ac.uk/resources/hull:3098.
Full textChowdhury, Sifatul Q. "Sedimentology, palynology and diagenesis of the Namurian in North Wales." Thesis, Aston University, 1986. http://publications.aston.ac.uk/14361/.
Full textAnshari, Gusti Zakaria. "Late quaternary vegetation and environments in the Lake Sentarum Wildlife Reserve, West Kalimantan, Indonesia." Monash University, School of Geography and Environmental Science, 2000. http://arrow.monash.edu.au/hdl/1959.1/9252.
Full textMoutoux, Thomas E. "Palynological and tephra correlations among deep wells in the modern Great Salt Lake, Utah, USA implications for a neogene through pleistocene climatic reconstruction /." Thesis, [Tucson, Ariz. : University of Arizona], 1995. http://hdl.handle.net/10150/191347.
Full textNeulieb, Thomas. "Refining the marine reservoir effect in the Northwest North Atlantic." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121481.
Full textCette recherche vise à determiner si la datation par carbone 14 des grains de pollen peut être utilisée comme méthode alternative de datation des sédiments marins et si l'âge du pollen peut être utilisé pour raffiner la correction due à l'effet réservoir marin (Marine Reservoir Effect) appliquée aux carbonates marins des carottes prélevée le long de la marge de l'est canadien (plateaux continental de Terre-neuve et Néo-Écossais). Une datation précise est d'une grande importance afin de situer dans le temps des évènements climatiques soudains comme le début et la fin de la période de refroidissement du 8.2 ka, l'oscillation du Dryas récent et l'oscillation du Préboréal et les sédiments correspondant à ces évènements ont été utilisés dans cette étude. Du pollen a été extrait de sédiments océaniques et de zones humides prélevés sur la marge est-canadienne, dans la région de la Baie James et dans les provinces maritimes du Canada et datés au carbone 14 en utilisant la méthode d`accélération de particules et le spectromètre de mass « Accelerator Mass Spectrometry (AMS) ». Les dates basées sur le pollen des sédiments marins ont été comparées avec celles obtenues sur des carbonates marins (coquilles de mollusques et foraminifères) provenant des mêmes niveaux dans les carottes, pour lesquelles le remaniement a été exclu. La validité des dates des carottes a été évaluée via des corrélations avec des carottes provenant d`autres études, également datées. Des échantillons de pollen de trois zones humides de marrée ont été pris aux niveaux qui ont été préalablement datés avec des profils de Cs 137 et Pb 210. Lesâges du pollen de deux autres zones humides ont été comparés avec les âges carbone 14 de macrorestes botaniques. La plupart des dates carbone 14 basées sur le pollen diffèrent de celles basées sur les macrorestes ou les carbonates, avec des différences d'âge de plus de 250 ans, et même de 3000 ans dans un cas. Dans quelques échantillons, les âges basées sur le pollen sont plus jeunes que ceux des carbonates du même niveau, tel que prévu. Ces différences entre les âges des carbonates, qui sont affectés par l'effet réservoir marin et les âges du pollen, qui ne sont pas par l'effet réservoir marin, semble indiquer un effet réservoir marin, et la correction d`âge réservoir associée à cet effet pourrait altérer notre compréhension de la chronologie climatique de la marge continentale de l`est de Canada. Cependant, ces nouveaux âges réservoir n'ont pas encore été validés avec les interprétations stratigraphiques des carottes avec lequelles ils sont associés. Toutefois, dans certaines carottes, les dates du pollen montrent des inversions d'âge. Des proportions significatives des grains de pollen retravaillés, dans les milieux marins et les zones humides, ont été associées avec des dates polliniques trop âgées. L'entreposage prolongé des carottes pourrait résulter en des dates carbone 14 trop jeunes, possiblement dû à la croissance de bactéries mais plus de recherche est nécessaire pour vérifier cette hypothèse. Malgré les difficultés rencontrées, quelques dates basées sur le pollen sont consistentes avec les autres dates carbone 14 du même niveau dans la carotte, suggérant que cette méthode de datation peut fonctionner. Pour l'instant, plus de recherche est nécessaire pour comprendre les résultats contradictoires obtenus.
Pearson, Alastair William. "Carn Ingli, circa 1500BC to AD1845 : the application of geographical information systems to the study of settlement development at Newport, Pembrokeshire." Thesis, University of Portsmouth, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308842.
Full textPatrickson, Shela. "Palynological analysis from a bush karoo rat (Otomys unisulcatus) lodge near Prince Albert, South Africa." Bachelor's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/25920.
Full textVezey, Edward L. "Application of quantitative image analysis and multivariate techniques in palynology / by Edward L. Vezey." Full-text version available from OU Domain via ProQuest Digital Dissertations, 1992.
Find full textWoolfenden, Wallace Bird 1941. "Late Quaternary vegetation history of the southern Owens Valley region, Inyo County, California." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/282184.
Full textGaddah, Khaled Mahmud. "Palynology of the Cretaceous deposits of the southeast Sirt Basin, Libya." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522010.
Full textMachado, Gil Monteiro Jacinto. "Upper palaeozoic stratigraphy and palynology of OMZ, NW and SW Portugal." Doctoral thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3851.
Full textNeste trabalho descreve-se e interpreta-se a estratigrafia e palinologia de rochas sedimentares e metassedimentos de idade devónica e carbónica aflorantes ao longo da zona de cisalhamento Porto-Tomar, a Sul na Bacia de Santa Susana e em vários locais onde afloram os Calcários de Odivelas. Existe um registo de sedimentação descontínuo possivelmente associado a esta zona de cisalhamento desde o Devónico Superior até ao Pennsylvaniano. Desde o Devónico Superior até ao Mississippiano esta sedimentação é marinha, de carácter essencialmente turbiditico com uma tendência geral para se tornar mais proximal. A maturação térmica atingida por estas rochas (Unidade de Albergaria-a-Velha) é alta e a unidade é considerada pós-madura em termos de potencial gerador de hidrocarbonetos. O metamorfismo incipiente é acompanhado por intensa deformação. A bacia do Buçaco é inteiramente terrestre e tem a sua idade restrita ao Gjeliano (Pennsylvaniano superior). O controlo da sedimentação pela actividade da zona de cisalhamento Porto-Tomar é evidente. A sua maturação térmica é relativamente baixa (dentro da catagénese) e a deformação menos intensa, contrastando com a Unidade de Albergaria-a-Velha com a qual parece ter uma relação geométrica complexa, de origem tectónica. As relações de campo e dados da maturação térmica permitem inferir um evento térmico e de deformação à escala regional entre o Serpukoviano e o Gjeliano e outro, essencialmente de deformação, entre o Gjeliano e o Carniano (Triássico Superior). A bacia de Santa Susana tem características semelhantes à do Buçaco, visto estar enquadrada também numa zona de cisalhamento importante que neste caso separa a Zona de Ossa-Morena da Zona Sul Portuguesa. A sua idade é kasimoviana, possivelmente também moscoviana (Pennsylvaniano médio). A evolução térmica da bacia e a relação estrutural com as unidades circundantes permite inferir um evento térmico e de deformação regionalmente importante entre o Viseano e o (?)Moscoviano-Kasimoviano. O estudo detalhado de vários locais onde afloram os Calcários de Odivelas permite desenhar uma paleogeografia regional durante o intervalo Emsiano terminal-Givetiano (fim do Devónico Inferior – Devónico Médio) para o sector Oeste da Zona de Ossa-Morena: Actividade vulcânica em regime marinho (e talvez subaéreo), formando edifícios vulcânicos no topo dos quais (e possivelmente também em altos fundos estruturais) se instalaram recifes, tendo a comunidade recifal, em termos de diversidade, persistido durante todo ou grande parte deste intervalo de tempo. O evento Choteč basal é observável num destes locais.
The Palynology and Stratigraphy of Devonian and Carboniferous sedimentary rocks and metasediments outcropping along the Porto-Tomar shear zone are described and interpreted. The Palynology and Stratigraphy of the Santa Susana Basin and of the Odivelas Limestone are also described and interpreted. There is a discontinuous sedimentary record possibly associated with the Porto-Tomar shear zone extending from the Late Devonian to the Pennsylvanian. From the Late Devonian to the Mississippian, the sedimentation was marine, essentially turbiditic, with a general shallowing trend. The thermal maturation of these rocks (Albergaria-a-Velha Unit) is high, and the unit is considered to be post-mature in terms of hydrocarbon generation potential. The incipient metamorphism is accompanied by intense deformation. The Buçaco basin is entirely terrestrial and its age is restricted to the Gzhelian (upper Pennsylvanian). The sedimentation is clearly controlled by the Porto- Tomar shear zone. Its thermal maturity is relatively low (within catagenesis range) and the deformation milder, contrasting with the Albergaria-a-Velha Unit. The contact between the two is tectonic. The field evidences and the thermal maturity data of the basin and surrounding units point to an important regional thermal and deformation event that took place between the Serpukovian and the Gzhelian and another, essentially tectonic, between the Gzhelian and the Carnian (Upper Triassic). The Santa Susana basin has similarities with the Buçaco basin as it is also within an important shear zone, in this case separating the Ossa-Morena and South Portuguese Zones. Its age is kasimovian, and possibly moscovian (middle Pennsylvanian). The thermal evolution of the basin and the structural relations with the surrounding units point to a regional scale thermal and tectonic event occurring between the Viséan and the (?)Moscovian- Kasimovian. The detailed study of several occurrences of the Odivelas Limestone allow an insight to the regional palaeogeography of the Western Ossa-Morena Zone during the latest Emsian – Givetian interval (latest lower Devonian – middle Devonian): marine (and possibly sub-aerial) volcanic activity forming volcanic buildings on top of which reef communities developed (and possibly on structural highs). The reef biota persisted, in terms of diversity, during all or most of this time interval. The basal Choteč event is recorded in one of these occurrences.
FCT - SFRH/BD/23787/2005
POCI 2010 - medida IV.3
QREN - POPH - Tipologia 4.1
Ochoa-Lozano, Diana. "Neogene Palynology of the Gray Fossil Site, Tennessee, USA: Floristic Implications." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/2248.
Full textFaure, Élodie. ""Hautes terres" : l'anthropisation des monts d’Aubrac et du Lévezou (Massif Central, France) durant l’holocène : approche palynologique des dynamiques socio-environnementales en moyenne montagne." Thesis, Toulouse 2, 2012. http://www.theses.fr/2012TOU20087/document.
Full textBased upon a multidisciplinary approach centered on palynology, the aim of our study was to better understand the long-term interaction in human/vegetation processes in the Aubrac and Levezou mountainous regions (Massif Central, France). In a first step, the relationships between present pollen deposition, vegetation and land-uses have been studied using a comparative approach. The main pollen taxa representative of human activities have been isolated and their spatial and functional representativeness have been assessed. Secondly, six sedimentary records, supported by 24 radiocarbon dates, have been studied with a multi-proxy approach combining pollen, macro charcoals, non-pollen palynomorphs, archeological and historical data. The analysis has allowed us to characterize vegetation history and local human impact on the landscape, in particular rhythms, breaks and thresholds concerning anthropisation’s dynamics According to our analysis, the first signs of human impact on the vegetation appear in Aubrac during the middle Neolithic period, while evidence of human activities seem to extent during the Late Neolithic. The Iron Age and early Antiquity periods are characterized by large scale deforestation correlated to the increase of the agro-pastoral pressure. Our analysis further suggests that the medieval and modern periods consolidate the types of landscape that have been created in earlier periods. The dynamics that have been highlighted in this study suggest an important degree of spatial variability of land use. The analyzed territories present common trends that correspond to colonization trajectories generally encountered in mountain areas. Relative to anthropisation’s dynamics, climate forcing seems to have not been a limiting factor for human settlements and may even have been a positive stimulus promoting the development of new adaptive land use strategies
Rowell, Louise. "Palynomorph retention on clothing under differing conditions." University of Western Australia. Centre for Forensic Science, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0165.
Full textFersi, Wiem. "Reconstitution de la variabilité de la mousson indienne et ses impacts environnementaux sur le Nord-Ouest de la Mer d'Arabie et ses bordures continentales depuis le Dernier Maximum Glaciaire : étude multi-proxy d'une carotte marine dans le Golfe d'Aden." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS294/document.
Full textCore MD92-1002 retrieved from the Gulf of Aden (12°01’32 N- 44°19’02E -1327 m of water depth) provides a unique paleoenvironmental and paleoclimatic record to study the evolution of continental and marine environments since 20 ka. I performed palynological analyses (pollen grains, spores, fungi, charcoal, freshwater algae, dinoflagellate cysts, copepod eggs) and combined those data with geochemical (δ¹⁸O, X-Ray Fluorescence) and sedimentological parameters (e.g. sedimentation rates, Total Organic Carbon (TOC)). Pollen grains reveal regional hyper-arid conditions during the glacial period, characterized by sparse vegetation cover of Saharo-Sindian origin. The abundance of steppic taxa associated with charcoal fragments suggests strong wind activity. Humidity tracers increased from 14.9 ka and reached their maximum between 9 and 7.5 ka. This maximum is characterized by the development of the tropical mangrove Rhizophora in the Gulf of Aden, reflecting tropical conditions with summer monsoon rains. The timing of events deduced from palynological records and continental data such as lacustrine and palustrine deposits and speleothems from Socotra and Oman, reveals a northward and westward shift of the Inter-Tropical Convergence Zone (ITCZ) summer position at the onset of the Holocene Humid Period (HHP). The ITCZ was located in southern Ethiopia at 19 ka, then migrated northward to reach Socotra at 14.51 ka, Qunf at 10.4 ka and Hoti at 10 ka. Westward shift of ITCZ is suggested by the development of mangrove (Rhizophora) from 12.5 ka. Core MD 92-1002 reveals that HHP termination took place earlier than over tropical North Africa, in two main steps dated at 7.5 and 4 ka, respectively. Dinoflagellate cyst assemblages suggest that the glacial period was characterized by weakened upwellings and well-ventilated bottom water. Primary productivity in the Gulf of Aden increased from 14.5 ka and reached its maximum during the glacial/interglacial transition between 12.6 and 10.8 ka. It took place about ~ 3 ka earlier than the peak intensity of upwellings off the Oman margin, which is associated with the maximum of SW monsoonal winds. This singularity could be explained by the landlocked position of the gulf, at the junction between two orthogonal wind regimes during the boreal summer season (SW monsoon winds prevailing to the East of the Gulf, while NW winds blow along the main axis of the Red Sea to the west). TOC analysis reveals a Glacial-Interglacial variability that is largely decoupled from our reconstruction of surface productivity, suggesting that organic content is mainly controlled by preservation at the sea floor
Bartram, Katherine Marion. "The palynology and petrology of the Barnsley Seam (Westphalian B) Yorkshire, England." Thesis, Royal Holloway, University of London, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.543847.
Full textTreloar, Walter John. "Digital image processing techniques and their application to the automation of palynology." Thesis, University of Hull, 1992. http://hydra.hull.ac.uk/resources/hull:3762.
Full textNoor, Nor Nafizah Mohd. "Comparative leaf anatomy, phytochemistry and palynology of nine genera of dipterocarpoideae (Dipterocarpaceae)." Thesis, University of Reading, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434116.
Full textDeaf, Amr Said. "Palynology, palynofacies and hydrocarbon potential of the Cretaceous rocks of northern Egypt." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/168943/.
Full textSmith, Giles A. "Palynology of the Jurassic/Cretaceous boundary interval in the Volga Basin, Russia." Thesis, University of Bristol, 1999. http://hdl.handle.net/1983/a981fc30-fa69-4cf5-aae5-7290d2a489df.
Full textIngram, Steven. "Palynology of the Cape's top ten richest families and its taxonomic implications." Bachelor's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/23943.
Full textSudhaus, Dirk. "Paläoökologische Untersuchungen zur spätglazialen und holozänen Landschaftsgenese des Ostschwarzwaldes im Vergleich mit den Buntsandsteinvogesen /." Freiburg i. Br. : Institut für Physische Geographie der Albert-Ludwigs-Universität, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014181535&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textNeregato, Rodrigo [UNESP]. "Estudo palinológico das formações Serra Alta, Teresina e Rio do Rasto nos furos de sondagem SP-23-PR e SP-58-PR, centro-norte do Paraná (Permiano, Bacia do Paraná)." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/92907.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
São apresentados os resultados de análises palinológicas realizadas em 37 amostras de testemunhos dos furos de sondagem no sul do Município de Congonhinhas (PR), nas formações Serra Alta, Teresina e Rio do Rasto (somente no Membro Serrinha), abrangendo uma extensão vertical de aproximadamente 600 m. A primeira formação revelou-se estéril. Entre as 32 espécies descritas, três provavelmente são novas, cinco foram previamente registradas em níveis estratigráficos mais baixos da Bacia do Paraná e 7 espécies eram apenas conhecidas em outros países. As assembléias palinológicas coadunam com a idade aproximadamente mesopermiana previamente interpretada para os depósitos. A priori, todo o intervalo estudado faz parte da Zona Lueckisporites virkkiae e as novas espécies registradas para a bacia apresentam potencial para futuros refinamentos bioestratigráficos. Diferenças na abundância relativa de espécies de esporos permitiram visualizar dois possíveis intervalos, um com predominância de Laevigatosporites vulgaris, a grosso modo na Formação Teresina, e o outro dominado por Thymospora, no Membro Serrinha. Os esporos com afinidade a filicíneas predominam largamente em relação aos de outros grupos e também são bem mais abundantes que grãos de pólen. Este resultado dá margem a muitas interpretações, tendo em vista que o quadro florístico sugerido pelos macrofitofósseis é distinto e que as condições deposicionais dos folhelhos estudados provavelmente não foram proximais.
Palynological analyses of 37 core samples of two boreholes in Congonhinhas Municipality (PR) from the Serra Alta, Teresina and lower Rio do Rasto formations (total thickness= ~600 m) are presented. The first formation did not provide fertile samples. From the 32 described species, three probably are new, five were previously recorded at lower stratigraphic levels of the Paraná Basin and 7 species were only known in other countries. The microfloristic assemblages are consistent with the approximately Mid Permian age anteriorly interpreted for the succession. A priori, the whole studied interval belongs to the Lueckisporites virkkiae Zone and the species now recorded in the Paraná Basin bear potential for a possible future biostratigrafic improvement. Two intervals were recognized in the studied succession according to the relative abundance of some spore species: one interval (roughly coincident with the range of the Teresina Formation) is characterized by the predominance of Laevigatosporites vulgaris, and the second (in the Serrinha Member, lower Rio do Rasto Formation) is dominated by Thymospora. Spores with affinities to ferns are predominant in relation to other groups and are also more abundant than pollen grains. This result is not easily interpreted because de macroflora is relatively distinct and the dark shales used for the palynological analyses probably were not originated in very proximal depositional environments.
McLean, Duncan. "A palynostratigraphic classification of the Westphalian of the southern North Sea carboniferous basin." Thesis, University of Sheffield, 1993. http://etheses.whiterose.ac.uk/3525/.
Full textButler, Simon Blake. "Archaeopalynology of ancient settlement at Kebister, Shetland Islands." Thesis, University of Sheffield, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262011.
Full textPenny, J. H. J. "Early Cretaceous angiosperm pollen from Egypt." Thesis, University of Cambridge, 1986. https://www.repository.cam.ac.uk/handle/1810/273106.
Full textLascelles, D. B. "Holocene environmental and pedogenic history of the Hiraethog Moors, Clwyd." Thesis, Bangor University, 1995. https://research.bangor.ac.uk/portal/en/theses/holocene-environmental-and-pedogenic-history-of-the-hiraethog-moors-clwyd(3c8e72ad-217e-4927-9aba-8ab6143d6594).html.
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