Permocarboniferous
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Assinaturas icnológicas em depósitos glaciogênicos do grupo Itararé no RS
A revisão icnotaxonômica da paleoicnofauna Grupo Itararé no RS revelou a presença de uma icnofauna dominada por trilhas de artrópodes, com impressões de repouso e pistas de deslocamento intraestratal de artrópodes e escavações rasas de organismos vermiformes subordinadas, além de icnofábricas de Chondrites-Planolites-Palaeophycus. Duas novas icnoe
Publicado em: 2006
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2. Estudo hidrogeológico do Subgrupo Itararé no médio Rio Tietê, Município de Tietê, SP / Itararé Subgroup hydrogeological study in the Middle Tietê rivers of the Tietê municipalitie, São Paulo State
The present paper is a contribution to the hydrogeology of Tietê Municipality, State of São Paulo, Brazil. The main subject of this research is the Permocarboniferous Itararé Subgroup of the Tubarão Group, specially the Tietê Formation due to its groundwater potential. Surface water sources, including the most of the rivers, are not fitted for consumpti
Publicado em: 1990
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3. Impact of a Permo-Carboniferous high O2 event on the terrestrial carbon cycle
Independent models predicting the Phanerozoic (past 600 million years) history of atmospheric O2 partial pressure (pO2) indicate a marked rise to approximately 35% in the Permo-Carboniferous, around 300 million years before present, with the strong potential for altering the biogeochemical cycling of carbon by terrestrial ecosystems. This potential, ho
The National Academy of Sciences.
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4. Low atmospheric CO2 levels during the Permo- Carboniferous glaciation inferred from fossil lycopsids
Earth history was punctuated during the Permo-Carboniferous [300–250 million years (Myr) ago] by the longest and most severe glaciation of the entire Phanerozoic Eon. But significant uncertainty surrounds the concentration of CO2 in the atmosphere through this time interval and therefore its role in the evolution of this major prePleistocene glaciation. He
The National Academy of Sciences.