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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Structural architecture and evolution of the Humber Arm Allochthon, Frenchman's Cove - York Harbour, Bay of Islands, Newfoundland /

Buchanan, Christopher R., January 2004 (has links)
Thesis (M.Sc.)--Memorial University of Newfoundland, 2004. / Bibliography: leaves 179-187. Also available online.
22

Fósseis do afloramento Santa Irene, cretácio superior da Bacia Bauru = inferências paleoecológicas / Fossils of outcrop, upper cretaceous Bauru Basin : paleoecological inferences

Tavares, Sandra Aparecida Simionato, 1969- 18 August 2018 (has links)
Orientadores: Frésia Soledad Ricardi Torres Branco, Ismar de Souza Carvalho / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências / Made available in DSpace on 2018-08-18T21:34:34Z (GMT). No. of bitstreams: 1 Tavares_SandraAparecidaSimionato_M.pdf: 8529535 bytes, checksum: 81caa7b6648edbc9a42d10c5ee967375 (MD5) Previous issue date: 2011 / Resumo: O Afloramento Santa Irene tem sido considerado um dos mais significativos da Bacia Bauru, na Formação Adamantina, pela abundancia e boa conservação de fósseis associados ali encontrados, como dentes isolados de arcossauros carnívoros associados a fósseis de um dinossauro saurópode herbívoro. Os fósseis foram coletados nos anos de 1997 e 1998, na área rural do Município de Monte Alto - SP, e hoje compõem parte do acervo do Museu de Paleontologia de Monte Alto. Os dentes isolados de tal afloramento são o principal material de estudo deste trabalho, que, acrescidos a outros dados obtidos através da análise das feições bioestratinômicas e geológicas da região, permitiram tecer uma interpretação paleoecológica para o Afloramento Santa Irene. Foram analisados vinte e seis exemplares de dentes de arcossauros carnívoros, sendo dezoito deles enquadrados como Theropoda e oito como elementos dentários pertencentes aos Crocodyliformes. Os dentes de Theropoda se distinguem daqueles de Crocodyliformes por serem os primeiros mais achatados lateralmente, além de apresentarem serrilhas. Foi possível constatar que quatorze dos dezoito exemplares classificados dentro da Subordem Theropoda apresentam características pertencentes à Ceratosauria, família Abelisauridae, e Maniraptora, família Dromaeosauridae. A coleção de dentes de Crocodyliformes coletados no afloramento Santa Irene consiste de oito exemplares em geral cônicos, com estriamento ao longo da carena, podendo ou não apresentar bordos serrilhados e seção basal arredondada, sendo possível classificá-los dentro da família Trematochampsidae. Os fósseis articulados e com pouco desgaste do Aeolosaurus indicam um soterramento parcial logo após a morte ou ainda na fase de destruição de seus elementos não esqueléticos. A observação do afloramento e do seu entorno permitiu deduzir que a região apresentava rios, possivelmente, entrelaçados com deposição sazonal de sedimentos e períodos de estabilidade com a formação de solos incipientes. Durante os períodos interdeposicionais e de formação do solo, nota-se a ocorrência da precipitação de minerais, dando origem à formação de calcretes, resultado de períodos secos marcantes. O afloramento Santa Irene representa a deposição de rios que formavam barras arenosas, nas quais diversos grupos de animais buscavam água e alimento. Conclui-se que estes animais habitavam ou transitavam por aquele ambiente, pois não há sinais de que os fósseis tenham sido transportados até o local no qual foram coletados, mas sim que a carcaça do Aeolosaurus serviu de alimentação para outros animais no local de sua morte. Desta forma, o material analisado permitiu a reconstituição de um retrato impar de um ecossistema a muito extinto / Abstract: The Santa Irene outcrop has been considered one of the most significant of the Bauru Basin, in the Adamantina formation, because of abundance and good preservation of associated fossils found there, as isolated teeth of carnivorous archosaurs associated with fossils of a herbivorous sauropod dinosaur. The fossils were found in 1997 and 1998, in rural areas of the city of Monte Alto - SP, and today compose the collection of the Museum of Paleontology of Monte Alto. The isolated teeth from this outcrop is the main material of this paper, which, together with other data obtained by analysis of biostratonomic and geological features of the region, allowed to make a paleoecological interpretation of the outcrop Santa Irene. Twenty-six copies of teeth of carnivorous archosaurs were analyzed, eighteen of them being classified as Theropodomorpho and eight teeth as belonging to Crocodyliformes. The teeth of Theropodomorpho can be distinguished from those to be the first Crocodyliformes as they are more flattened laterally, besides having serrations. It was found that fourteen of the eighteen specimens classified within the suborder Theropoda fit the characteristics belonging to Ceratosauria, family Abelisauridae and Maniraptora, family Dromaeosauridae. The collection of Crocodyliformes teeth collected from the outcrop Santa Irene consists of eight copies generally conical, with streaking along the keel, presenting or not serrated edges and rounded basal section, being possible to classify them within the family Trematochampsidae. The articulated and with little wear fossils of Aeolosaurus indicate a burial soon after death or during the destruction of its non-skeletal elements. The observation of the outcrop and its surroundings allow deducing that the region had braided rivers with seasonal sediment deposition and periods of stability with the formation of incipient soils. During no deposicional intervals periods and soil formation, can be noted the occurrence of precipitation of minerals, giving rise to the formation of calcrete, result of striking dry periods. The outcrop of St. Irene was formed by rivers that formed sand bars, in which various groups of animals tried to find food and water. It can be deduced that these animals lived or transited through that environment, because there is no evidence that the fossils were transported to the location in which they were collected, but that the Aeolosaurus remains served as food for other animals at his death location. Thus, the analyzed material allowed the reconstitution of an unique portrait of an ecosystem to long extinct / Mestrado / Geologia e Recursos Naturais / Mestre em Geociências
23

Controls on graywacke petrology in Middle Ordovician Cloridorme Formation : tectonic setting of source areas versus diagenesis

Ko, Jaehong. January 1985 (has links)
No description available.
24

Tectonostratigraphy of the Middle Ordovician Carillon formation, Eastern Ontario /

Al Rodhan, Zuhor, January 1900 (has links)
Thesis (M.Sc.) - Carleton University, 2005. / Includes bibliographical references (p. 43-45). Also available in electronic format on the Internet.
25

Minéralogie et géochimie des pélites de la formation de Riviere Ouelle, Appalaches du Québec, Canada /

Harra, Abderrahim, January 1996 (has links)
Mémoire (M.Sc.T.)--Université du Québec à Chicoutimi, 1996. / Document électronique également accessible en format PDF. CaQCU
26

Fault formation in porous sedimentary rocks at high strain rates /

Key, Wendy R. O. January 2009 (has links)
Thesis (M.S.)--University of Nevada, Reno, 2009. / "May 2009." Includes bibliographical references (leaves 31-37). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2009]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.
27

Geochemistry of the Cambrian manganese deposits of eastern Newfoundland /

Douglas, John Leslie, January 1983 (has links)
Thesis (Ph.D.) -- Memorial University of Newfoundland. / Bibliography : leaves 168-183. Also available online.
28

The oligocene and miocene geology of the Tillamook embayment Tillamook County, northwest Oregon /

Parker, Michael J. January 1990 (has links)
Thesis (M.S.)--Oregon State University, 1991. / Typescript (photocopy). Includes maps in pocket. Includes bibliographical references (leaves 442-458). Also available via the World Wide Web.
29

Sedimentology of the Upper Keweenawan sequence of northern Wisconsin and adjacent Michigan

Hite, David Marcel, January 1968 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
30

Zur Geochemie mariner und terrestrischer Sedimente und deren Färbung

Press, Susanne, January 1900 (has links)
Thesis (doctoral)--Universität zu Köln, 1982. / Summary in English and German. Includes bibliographical references (p. 189-194).

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