Results 11 to 20 of about 21,460 (205)

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+2 more sources

Paleomagnetism, rock magnetism and geochemical aspects of early Cretaceous basalts of the Paraná Magmatic Province, from Misiones, Argentina [PDF]

open access: yes, 2006
The basalts of the Posadas Formation were extruded during the huge continental volcanism that affected the Parana Basin in the Lower Cretaceous. We have carried out a paleomagnetic and rock-magnetic study on samples collected along a basalt outcrop ...
Lagorio, Silvia Leonor   +2 more
core   +1 more source

As Geociências do CNPq a Partir de seus Bolsistas de Produtividade em Pesquisa [PDF]

open access: yesAnuário do Instituto de Geociências, 2016
O perfil de produtividade científica do Programa Básico de Geociências, do CNPq, foi estudado a partir da análise dos currículos da Plataforma Lattes dos bolsistas de Produtividade em Pesquisa do CNPq (PQ) com bolsas vigentes em março de 2013.
Lucilene Faustina de Oliveira Cândido   +2 more
doaj   +1 more source

Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]

open access: yes, 2014
Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum   +5 more
core   +3 more sources

Magnetic parameters as proxies for anthropogenic pollution in water reservoir sediments from Mexico: an interdisciplinary approach [PDF]

open access: yes, 2020
We assess the element pollution level of water reservoir sediments using environmental magnetism techniques as a novel approach. Although “La Purísima” Water Reservoir is an important source for multiple activities (e.g.
Böhnel, Harald N.   +6 more
core   +1 more source

LZS-1, Lanzarote (Canary Island, Spain) lunar (Apollo 14) basaltic soil simulant

open access: yesScientific Reports, 2022
The search for Terrestrial Analogues is essential for the development of future permanent or semi-permanent lunar bases. Terrestrial Analogues are zones where it is possible to probe not only scientific instruments, but also other astronaut capabilities ...
Fernando Alberquilla   +3 more
doaj   +1 more source

Early Diagenesis of Lower Pliensbachian Sediments from the Algarve Basin (Portugal): Characterisation and Relation with Tectonic Evolution [PDF]

open access: yes, 2010
The Lower Jurassic (Lower Pliensbachian) sedimentary record of the western end of the Algarve Basin (Portugal) is made of decimetric thick layers of limestone and dolomitized limestone with chert nodules and inter-layered chert beds.
Azevedo, Maria do Rosário   +3 more
core   +3 more sources

Geogame: uma alternativa lúdica para o ensino de geociências

open access: yesRevista Espinhaço, 2018
O ensino de Geociências enfrenta grandes desafios, como a falta de uma disciplina específica e recursos didáticos. Para tentar contorná-los é necessário buscar medidas alternativas dentro da realidade do ensino atual. Recursos didáticos podem ser aliados
Juliana Alves Torres Gomes   +1 more
doaj   +1 more source

Nest niche overlap among the endangered Vinaceous-breasted Parrot (Amazona vinacea) and sympatric cavity-using birds, mammals, and social insects in the subtropical Atlantic Forest, Argentina [PDF]

open access: yes, 2017
Many forest bird species require tree cavities for nesting, and share this resource with a diverse community of animals. When cavities are limited, niche overlap can result in interspecific competition, with negative consequences for threatened ...
Bonaparte, Eugenia Bianca   +1 more
core   +1 more source

A new marrellomorph euarthropod from the Early Ordovician of Argentina [PDF]

open access: yes, 2016
Marrellomorphs (class Marrellomorpha) are a group of Paleozoic arthropods with a very poor fossil record. Here we describe a new marrellomorph arthropod Mimetaster florestaensis sp. nov. from the Tremadocian (earliest Ordovician) of Argentina.
Aris, María Josefina   +3 more
core   +1 more source

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