Stratigraphy, diagenesis and geological evolution of the ...
2015-9-1u2002·u2002The Roraima Supergroup is a succession of Paleoproterozoic siliciclastic sediments that is exposed over 73,000 square kilometers in the Pakaraima Mountains in Venezuela, Guyana, and Brazil (Gibbs and Barron, 1993).In addition to the main outcrop area in the Pakaraima Mountains, numerous erosional outliers occur as far as 350 km to the east in Suriname and 550 km to the south in Brazil …
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