Geochronology and petrology of Cretaceous basaltic magmatism in the Kwanza basin (western Angola), and relationships with the Paranà-Etendeka continental flood basalt province.

MARZOLI A
MELLUSO L.
MORRA V.
RENNE P.R.
SGROSSO I.
M. D'ANTONIO
DUARTE MORAIS L.
MORAIS E.A.A.
RICCI G.

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Publication date

January 1999

DOI

10.1016/S0264-3707(99)00014-9

Publisher

Elsevier BV

ISSN

0264-3707

Abstract

Early Cretaceous tholeiites of the Kwanza basin, western Angola, 300 km South of Luanda, are evolved basalts to basaltic andesites, characterized by low TiO2 ( 1.0. Initial 87Sr/86Sr ranges from 0.70297 to 0.70302 and from 0.70287 to 0.70495 for alkaline and transitional rocks, respectively. Sodic alkaline and transitional rocks from the Kwanza basin differ in composition from most coeval alkaline rocks of southeastern Brazil, which are of potassic type

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Geochronology and petrology of Cretaceous basaltic magmatism in the Kwanza basin (western Angola), and relationships with the Paranà-Etendeka continental flood basalt province.

Abstract

Extracted data

Geochronology and petrology of Cretaceous basaltic magmatism in the Kwanza basin (western Angola), and relationships with the Paranà-Etendeka continental flood basalt province.

Abstract

Extracted data

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