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Mostrando ítems 11-20 de 20
Ongoing Cenomanian — Turonian heterozoan carbonate production in the neritic settings of Peru
(ElsevierNL, 2016-01)
The present paper reports on the sedimentological and geochemical record of Albian–Turonian neritic carbonates from the eastern subequatorial Pacific domain in Peru. The focus is on one of the most extreme carbon cycle ...
Carbon-cycle changes during the Toarcian (Early Jurassic) and implications for regional versus global drivers of the Toarcian oceanic anoxic event
(Elsevier Science, 2020-10)
The Early Jurassic Toarcian oceanic anoxic event (T-OAE) is characterized by an extinction event, a major sea-level rise, enhanced marine primary productivity, elevated seawater temperatures, widespread deposition of ...
Paleosalinity determination in ancient epicontinental seas: A case study of the T-OAE in the Cleveland Basin (UK)
(Elsevier Science, 2020-02)
The Early Jurassic Toarcian oceanic anoxic event (T-OAE) was marked by deposition of organic-rich sediments and a pronounced negative carbon-isotope excursion across the Northwest European Sea (NWES), representing a signal ...
Paleoecology and paleoenvironments of Permian bivalves of the Serra Alta Formation, Brazil: Ordinary suspension feeders or Late Paleozoic Gondwana seep organisms?
(Elsevier B.V., 2017-08-01)
This is the first record of a Permian seep deposit and an associated, morphologically bizarre, bivalve-dominated fauna from the Passa Dois Group, Parana Basin, Brazil. Shales of the outer-shelf facies of the Serra Alta ...
The Enigmatic devonian fossil prototaxites is not a rolled-up liverwort mat: Comment on the paper by Graham et al. (AJB 97: 268 - 275)
(Botanical Society of America, 2010-07)
It should not be surprising that there are numerous examples of fossil organisms for which there are no known direct modern analogues. The seed ferns of the Paleozoic and Mesozoic, arborescent sphenophytes, and a number ...
Instrucciones para autores
(Departamento de Geociencias, 2012)
Instrucciones para autoresNota preliminar: ¡Es de suma importancia que antesde enviar cualquier documento a la Revista GeologíaColombiana, lea y cumpla cuidadosamente cada uno delos subíndices de las Normas para autores!A ...
Asociaciones de nanofósiles calcáreos del Cretácico Tardío en algunos sectores de Colombia: Cordillera Oriental, Occidental, Caribe y Pacífico Colombiano
(Facultad de Ciencias Exactas y NaturalesManizalesMaestría en Ciencias de la Tierra, 2023)