Thesis (M.S.)--University of Wisconsin--Madison, 1951. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 44-45).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1952. / Typescript. Two folded charts in pocket. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 83-87).

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Agência Nacional do Petróleo / Este trabalho trata do estudo da estratigrafia de alta resolução e geoquímica orgânica da Formação Tremembé, na Bacia Sedimentar de Taubaté-SP, de idade cenozóica, com base nos dados de teores de Carbono Orgânico Total (COT), teores de enxofre total e Resíduo Insolúvel (RI), dados de pirólise Rock-Eval bem como dos resultados de espectrometria de raios gama. Estes dados foram obtidos a partir de amostras selecionadas de testemunhos de duas sondagens rasas, respectivamente 55,40 m (poço TMB-01-SP) e 18,02m (poço TMB-02-SP), resultantes de testemunhagem contínua ao longo do intervalo de folhelhos da Formação Tremembé. O intervalo analisado da Formação Tremembé foi dividido em nove unidades quimioestratigráficas, as quais foram correlacionadas com os dados de Pirólise Rock-Eval e com os dados de raios gama. Com base nos resultados de Pirólise Rock-Eval, verificou-se que a grande maioria da matéria orgânica da Formação Tremembé é do tipo I, que é rica em hidrogênio e pobre em oxigênio, correspondendo ao melhor tipo de matéria orgânica para a geração de hidrocarbonetos líquidos e gasosos. As unidades quimioestratigráficas D e F são as que apresentam os maiores potenciais de geração de hidrocarbonetos, correspondendo aos folhelhos betuminosos papiráceos. Na seção estudada (poço TMB-SP) foram identificados cinco níveis com concentrações muitas elevadas de COT, considerando-se apenas teores acima de 20%. Desses cinco níveis, dois se destacam, por apresentarem teores de COT superiores a 30%. Considerando-se os dados de pirólise Rock-Eval, nota-se que esses dois intervalos são os que oferecem uma maior atratividade quanto ao seu potencial gerador, já que representam valores de S2 que excedem a 100mg HC/g de rocha, além de valores de IH sempre superiores a 600. / This work is about the study of the high-resolution stratigraphy and organic geochemistry of the Tremembé Formation, in the Taubaté Sedimentary Basin-SP, of Cenozoic age. This work is based on the Total Organic Carbon contents (TOC), total sulphur contents and Insoluble Residue contents (IR), Rock-Eval pyrolysis data as well as the results of gamma rays spectrometry. These data were obtained from selected samples of coring from two shallow drillings, respectively 55,40 m (borehole TMB-01-SP) and 18,02m (borehole TMB-02-SP), resulting of continuous coring throughout the shales interval of the Tremembé Formation. The analyzed interval of the Tremembé Formation was divided in nine chemostratigrafic units that were correlated with the Rock-Eval pyrolysis data and the data of gamma rays spectrometry. Based on the results of Rock-Eval pyrolysis data, was verified that the great majority of the organic matter of the Tremembé Formation is of type I, that is rich in hydrogen and poor in oxygen, corresponding to the best type of organic matter for the generation of liquid and gaseous hydrocarbons. Chemostratigrafic units D and F are the ones that present the greatest potential of generation of hydrocarbons, corresponding to the papyraceous bituminous shales. In the section studied in the borehole TMB-SP, were identified five levels with TOC contents around 20%. Of these five levels, two of them present TOC contents higher than 30%. When considering the Rock-Eval pyrolysis data, these two intervals are the most interesting ones relatively to the generating potential, since they represent values of S2 that exceed 100mm HC/g of rock, and values of IH always higher than 600.

Agência Nacional do Petróleo / Este trabalho trata do estudo da estratigrafia de alta resolução e geoquímica orgânica da Formação Tremembé, na Bacia Sedimentar de Taubaté-SP, de idade cenozóica, com base nos dados de teores de Carbono Orgânico Total (COT), teores de enxofre total e Resíduo Insolúvel (RI), dados de pirólise Rock-Eval bem como dos resultados de espectrometria de raios gama. Estes dados foram obtidos a partir de amostras selecionadas de testemunhos de duas sondagens rasas, respectivamente 55,40 m (poço TMB-01-SP) e 18,02m (poço TMB-02-SP), resultantes de testemunhagem contínua ao longo do intervalo de folhelhos da Formação Tremembé. O intervalo analisado da Formação Tremembé foi dividido em nove unidades quimioestratigráficas, as quais foram correlacionadas com os dados de Pirólise Rock-Eval e com os dados de raios gama. Com base nos resultados de Pirólise Rock-Eval, verificou-se que a grande maioria da matéria orgânica da Formação Tremembé é do tipo I, que é rica em hidrogênio e pobre em oxigênio, correspondendo ao melhor tipo de matéria orgânica para a geração de hidrocarbonetos líquidos e gasosos. As unidades quimioestratigráficas D e F são as que apresentam os maiores potenciais de geração de hidrocarbonetos, correspondendo aos folhelhos betuminosos papiráceos. Na seção estudada (poço TMB-SP) foram identificados cinco níveis com concentrações muitas elevadas de COT, considerando-se apenas teores acima de 20%. Desses cinco níveis, dois se destacam, por apresentarem teores de COT superiores a 30%. Considerando-se os dados de pirólise Rock-Eval, nota-se que esses dois intervalos são os que oferecem uma maior atratividade quanto ao seu potencial gerador, já que representam valores de S2 que excedem a 100mg HC/g de rocha, além de valores de IH sempre superiores a 600. / This work is about the study of the high-resolution stratigraphy and organic geochemistry of the Tremembé Formation, in the Taubaté Sedimentary Basin-SP, of Cenozoic age. This work is based on the Total Organic Carbon contents (TOC), total sulphur contents and Insoluble Residue contents (IR), Rock-Eval pyrolysis data as well as the results of gamma rays spectrometry. These data were obtained from selected samples of coring from two shallow drillings, respectively 55,40 m (borehole TMB-01-SP) and 18,02m (borehole TMB-02-SP), resulting of continuous coring throughout the shales interval of the Tremembé Formation. The analyzed interval of the Tremembé Formation was divided in nine chemostratigrafic units that were correlated with the Rock-Eval pyrolysis data and the data of gamma rays spectrometry. Based on the results of Rock-Eval pyrolysis data, was verified that the great majority of the organic matter of the Tremembé Formation is of type I, that is rich in hydrogen and poor in oxygen, corresponding to the best type of organic matter for the generation of liquid and gaseous hydrocarbons. Chemostratigrafic units D and F are the ones that present the greatest potential of generation of hydrocarbons, corresponding to the papyraceous bituminous shales. In the section studied in the borehole TMB-SP, were identified five levels with TOC contents around 20%. Of these five levels, two of them present TOC contents higher than 30%. When considering the Rock-Eval pyrolysis data, these two intervals are the most interesting ones relatively to the generating potential, since they represent values of S2 that exceed 100mm HC/g of rock, and values of IH always higher than 600.

This paper describes the Mississippian. Exshaw, Banff and Rundle units, a remnant of ? Pennsylvania strata and cherty sandstones of the Permian Ishbel Group; paleontological details include information on the megafossils, foraminifers and algae. The Exshaw Formation includes a sanidine bearing tuffaceous sandstone. The Banff was subdivided into four rock units - Basal Shale, Cherty Unit, Crinoidal Unit and Upper Unit. The Rundle Group was divided into the Pekisko, Shunda, Turner Valley and Mount Head Formations. The term Jasper Lake Formation is applied to a sequence of crinoidal biosparites and dolomites at the South Berland River section which are bank-marginal lateral equivalents of eastern Shunda micrites. The Mississippian rocks of the three stratigraphic sections upon which this study is based are assigned to eight main petrographic facies and six petrographic subfacies. Facies A - calcisiltite: argillaceous crinoidal biomicrite and associated calcareous shales Facies B - an interbedded sequence offacies A and B Facies C - calcarenite: argillaceous crinoidal biomicrite Facies D - calcarenites: crinoidal biosparite Subfacies Da - calcarenite: ‘mature’ crinoidal intrasparite Subfacies Db - calcarenite: intraclast bearing crinoidal biosparite Facies E - oolitic and/or grapestone bearing calcarenites Subfacies Ea - fossiliferous intraclast bearing oosparite Subfacies Eb - intrasparites and sparry intramierites; four lithotypes are recognized (1) oolitic micritic crinoidal intrasparite (2) grapestone bearing intrasparite (3) oolite bearing partially merged intrasparite (4) grapestone and oolite bearing, sparry intramicrite Facies F - pure limestone micrites Subfacies Fa - crinoidal micrite Subfacies Fb - micrites, pelsparites, pelmicrites and dismicrites Facies G - unfossiliferous micrograined dolomite, commonly with microbedding Facies H - dolomite breccias The progression through the facies and subfacies from A to H reflects a change in depositional environment from that of normal marine deep quiet waters to lagoonal and evaporitic conditions; modern sedimentation of the Bahama Banks is used as a partial model. The facies distribution pattern for the Rundle carbonates of the area shows a tendency toward lagoonal facies in the east (Mturtm Creek section), bank-marginal facies in the west (South Berland River section) and intermediate facies at the Eagles Nest Pass section. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

Ce travail de thèse avait un double objectif: préciser les relations entre les organismes marins paléozoïques et les changements paléoenvironnementaux et si possible établir un modèle applicable dans différents domaines paléogéographiques et à différentes époques du Paléozoïque. Dans ce but, des analyses sédimentologiques, paléoécologiques et taphonomiques ont été réalisées afin de déterminer la réponse de la faune benthique aux variations du niveau marin, dans un contexte environnemental de plate-forme, à 2 époques différentes, l'Ordovicien supérieur et le Dévonien inférieur. Une coupe du Caradoc-Ashgill de Sardaigne, cinq coupes de l'Emsien inférieur du Massif armoricain et une coupe de l'Emsien inférieur d'Espagne (León) ont été choisies. La démarche de l'étude consiste en une analyse séquentielle à haute résolution et en un échantillonnage détaillé, destiné à l'étude paléontologique (taphonomie, définition d'associations d'organismes récurrents, systématique). Dans ce travail, seuls les brachiopodes ont été étudiés du point de vue systématique. Les brachiopodes décrits et figurés comportent 20 espèces pour l'Ordovicien supérieur sarde et 33 espèces pour le Dévonien inférieur Ibéro-armoricain. L'étude stratonomique a permis de reconnaître plusieurs types de faciès sédimentaires et les conditions de dépôt, en relation avec la distance à la ligne de rivage. L'empilement des faciès sédimentaires s'organise en séquences génétiques engendrées par les fluctuations du niveau relatif de la mer. Le signal de variation du niveau marin est cyclique et semble lié aux changements des paramètres orbitaux de Milankovitch. Des associations d'organismes, définies à l'aide d'analyses multivariées (analyses en composantes principales, classification hiérarchique), se répartissent de façon récurrente et en accord avec les faciès sédimentaires, caractérisant ainsi des milieux de dépôt différents. 16 associations sont ainsi définies: l'association à 'Longvillia', 'Nicolella', 'Paucicrura' et 'Ibéromena' de l'Ordovicien supérieur de Sardaigne; l'association à 'Adolfia', 'Stenorhynchia', 'Chonétides', 'Crinoïdes-Brachiopodes', 'Crinoïdes-Ostracodes', 'Ostracodes', 'Ostracodes-Tentaculitides', 'Bryozoaires' et 'Dacryoconarides' du Dévonien inférieur du Massif armoricain; l'association à 'Rhynchonellides', 'Spiriférides' et 'Tétracoralliaires-Crinoïdes-Dacryoconarides' du Dévonien inférieur ibérique. Une grande partie des archives paléontologiques est conservée au sein de concentrations coquillières d'épaisseur variable. L'étude des concentrations coquillières, en considérant les différents critères taphonomiques et leur répartition au sein des séquences génétiques, a permis la distinction de 2 types de concentration et l'élaboration d'un modèle expliquant leur mise en place. La formation des concentrations coquillières est liée à la dynamique des tempêtes (facteurs autocycliques) et aux variations du niveau marin (facteurs allocycliques). Les concentrations fines de tempêtes (type A) se forment préférentiellement lors des phases de chute du niveau marin à très haute fréquence, tandis que les concentrations composites de tempêtes (type B) s'individualisent lors des périodes d'élévation du niveau de la mer à très haute fréquence. Ces périodes se caractérisent par des apports sédimentaires faibles: il s'agit d'intervalles de stabilité à l'interface eau-sédiment, favorisant la rétroaction taphonomique ou encore l'activité des organismes perforants (bioérosion). Les accumulations coquillières qui en résultent sont des niveaux condensés, caractérisées par l'amalgame de nombreuses générations d'organismes. La complémentarité des approches séquentielles et paléontologiques se révèle fructueuse dans la compréhension de la dynamique des associations: le résultat des analyses multivariées des niveaux à partir de leur contenu faunique est en accord avec les regroupements établis par la stratigraphie séquentielle. Les associations reflètent clairement les fluctuations du niveau marin. Lors des variations progressives et modérées du niveau marin, les remplacements d'associations se caractérisent par une réorganisation de la composition taxonomique, de la diversité et des réseaux trophiques (remplacements d'associations par réorganisation). Lors de variations rapides et importantes du niveau marin, les remplacements d'association se définissent par des renouvellements dans la structure écologique (remplacements d'associations par renouvellement). Des changements paléoécologiques sont ainsi définis en relation avec les variations eustatiques.