3 documents found, page 1 of 1
New facies model and carbon isotope stratigraphy for an ediacaran carbonate pla...
Ramos, Maria Eduarda Alves Ferreira; Giorgioni, Martino; Walde, Detlef Hans Gert; Carmo, Dermeval Aparecido do; Fazio, Gabriella; Vieira, Lucieth CruzThe Ediacaran is a period characterized by the diversification of early animals and extensive neritic carbonate deposits. These deposits are still not well understood in terms of facies and carbon isotope composition (δ13C). In this study we focus on the Tamengo Formation, in southwestern Brazil, which constitutes one of the most continuous and well-preserved sedimentary record of the late Ediacaran in South Am...
In pursuit of causes for the greatest mass extinction : the Permo-Triassic Boun...
Mutter, Raoul Josua; Tomassi, Henrique Zimmermann; Carmo, Dermeval Aparecido doVarious catastrophic and/or episodic events have been suggested to have caused the end-Permian mass extinction close to the Permo-Triassic Boundary (PTB). The theories and extinction-scenarios are however predominantly based on the sedimentary rock record and fossil record of the Northern Hemisphere – the Southern Hemisphere and in particular the fossil fish record worldwide being least well explored. In this s...
Size variations of the vestibula of Krithe gnoma DO CARMO & SANGUINETTI, 1999 (...
Carmo, Dermeval Aparecido do; Meireles, Ricardo Piazza; Suarez, Paulo Anselmo Ziani; Mello, Vinicius MoreiraA espécie Krithe gnoma foi descrita a partir de sedimentos do Holoceno da margem continental do Brasil onde a mesma ocorre da plataforma ao talude. Nesta margem continental, a distribuição desta espécie é restrita a áreas de influência da corrente das Malvinas entre latitudes de 32°11'/22°31'S. K. gnoma foi selecionada para ser utilizada no presente estudo devido a excelente resolução alcançada no imageamento d...