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Petrographic, mineralogical and geochemical characterization of fine-grained rocks of the Pilmatué Member (Upper Valanginian-lower hauterivian) of the Neuquén Basin (Argentina): Implications for siliciclastic input, carbonate productivity and redox conditions
(Pergamon-Elsevier Science Ltd, 2020-10)
Petrographic, mineralogical and geochemical analyses of mixed siliciclastic-carbonate offshore deposits of the Pilmatué Member (Neuquén Basin) were carried out to define two scenarios for deposition: a confined ramp setting ...
Relative oversampling of carbonate rocks in the North American marine fossil record
(Cambridge University Press, 2023)
Paleontologists have long stressed the need to know how sampling the fossil record might influence our knowledge of the evolution of life. Here, we combine fossil occurrences of North American marine invertebrates from the ...
THE CRETACEOUS SANFRANCISCAN BASIN, EASTERN PLATEAU OF BRAZILTHE CRETACEOUS SANFRANCISCAN BASIN, EASTERN PLATEAU OF BRAZIL
(Sociedade Brasileira de Geologia, 2017)
Mixed siliciclastic-carbonate sedimentation in an evolving epicontinental sea: Aptian record of marginal marine settings in the interior basins of north-eastern Brazil
(Wiley-Blackwell, 2021-03-15)
The Aptian evaporitic transitional sequence (sag phase) of the Brazilian marginal basins records the first connection between the Central and South Atlantic oceans in the equatorial area. During this phase, lacustrine ...
The impact of benthic microbial communities in sediment dispersion and bedform preservation: a view from the oldest microbially induced sedimentary structures in South America
(2021-01-01)
The influence of microbial communities upon sedimentary dynamics is an issue of increasing significance. Over the last decades, studies have revealed a particular class of sedimentary structures and textures produced by ...
Carbonate collapse and the late Paleozoic ice age marine biodiversity crisis
(Geological Society of America, 2020-02)
The late Paleozoic ice age (LPIA) was characterized by persistently low diversity of marine invertebrates following a second-order mass extinction. Here, we used a data set of North American (paleotropical) fossil occurrences ...
Cimentação Carbonática em Reservatórios Siliciclásticos - O Papel da Dolomita -Carbonate cements in siliciclastic reservoirs - The dolomite role
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2007)
Field observations on the evolution of reticulate patterns in microbial mats in a modern siliciclastic coastal environment
(Society for Sedimentary Geology, 2018-01)
Reticulate patterns often found in siliciclastic rocks as wrinkle structures may have been associated with or the product of biological activity. They are also present in modern environments, and laboratory experiments ...
Susceptibility to the collapse of karst dolines in siliciclastic rocks in the municipality of Chapada dos Guimarães (State of Mato Grosso, Brazil)Suscetibilidade ao colapso de dolinas cársticas em rochas siliciclásticas no município de Chapada do Guimarães (MT, Brasil)
(2021-01-01)
This work aims to describe a karstic system in siliciclastic rocks of Ponta Grossa Formation, in the urban perimeter of the municipality of Chapada dos Guimarães (State of Mato Grosso, Brazil), in addition to conducting ...