Buscar
Mostrando ítems 1-10 de 380
Sedimentology and architecture of sharp-based tidal sandstones in the upper Marambio Group, Maastrichtian of Antarctica
(Elsevier Science, 2008-10-01)
At Snow Hill and Seymour islands, northeastern Antarctic Peninsula, the early Maastrichtian part of the Marambio Group consists in ascending stratigraphic order of a) fossiliferous mudstone and sandstone of the Snow Hill ...
Chemical weathering rates of clastic sedimentary rocks from the Paraná Basin in the Paulista Peripheral Depression, Brazil
(2019-12-01)
The chemical weathering plays an important role in the processes of surface geochemistry, which is fundamental to understand the landscape evolution. The Paraná Basin is an intracratonic sedimentary basin developed on the ...
Architecture of an Oligocene fluvial ribbon sandstone in the Ebro Basin, North-eastern Spain
(Wiley, 2010-04)
Fluvial ribbon sandstone bodies are ubiquitous in the Ebro Basin in North-eastern Spain; their internal organization and the mechanics of deposition are as yet insufficiently known. A quarrying operation in an Oligocene ...
Depositional settings and evolution of a fjord system during the carboniferous glaciation in Northwest Argentina
(Elsevier Science, 2018-07)
Fjord systems, represented by glacial diamictites and postglacial transgressive shales, formed in the basins of western Argentina during the late Carboniferous Gondwana glaciation. Well exposed fjord deposits of the Guandacol ...
DIVISÃO ESTRATIGRÁFICA DO MESOZOICO NO ESTADO DE SÃO PAULODIVISÃO ESTRATIGRÁFICA DO MESOZOICO NO ESTADO DE SÃO PAULO
(Sociedade Brasileira de Geologia, 2018)
Eocene graphoglyptids from shallow-marine, high-energy, organic-rich, and bioturbated turbidites, Fuegian Andes, Argentina
(Wydawnictwo Naukowe Invit, 2010-02)
Graphoglyptids are diagnostic ichnofossils of the Paleodictyon ichnosubfacies (Nereitesichnofacies), which is well represented in deep-marine Mesozoic–Cenozoic thin-bedded turbidites. However, unusual shallow-water records ...
La sucesión carbonífera de la Quebrada Agua de la Peña (Sierra del Valle Fértil): Ambientes sedimentarios, contenido fosilífero e importancia estratigráfica
(Asociación Argentina de Sedimentología, 2018-12)
La Formación Tuminico, en el área de la quebrada Agua de la Peña, formauna sucesión de 1128 m de espesor, la que caracteriza la sedimentacióncarbonífera tardía, aflorante próxima al lineamiento de Valle Fértil. La ...
Sharp-based marine sandstone bodies in the Mulichinco Formation (Lower Cretaceous), Neuquén Basin, Argentina: Remnants of transgressive offshore sand ridges
(Wiley Blackwell Publishing, Inc, 2012-08)
The interpretation of sharp-based shallow-marine sandstone bodies encased in offshore mudstones, particularly transgressive units, has been a subject of recent debate. This contribution provides a multiple-dataset approach ...