2019
DOI: 10.11137/2019_4_349_358
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Quimioestratigrafia Isotópica (C e O) e Geoquímica de Calcários Recifais da Formação Tambaba, Bacia Paraíba, Nordeste do Brasil

Abstract: This work focuses on the behavior of the C and O isotopes and major and trace element chemistry of the carbonate rocks of the Tambaba Formation, Paraíba Basin, Northeastern Brazil. Thirteen carbonate samples collected from three vertical profiles located perpendicular to the bedding along the coast of the state of Paraíba were analyzed. The δ 13 C values ranged from 1.6 to 2.8‰ VPDB while the δ 18 O values ranged from -1.2 to 1.8‰ VPDB, thus suggest a restricted shallow-platform depositional environment. X-ray… Show more

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