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Carlos Oscar Limarino,Leonardo R. Scarlatta,Patricia L. Ciccioli,Sabrina Miyno,Fanny Bello,Silvia N. Césari
Pág. 127 - 149
The La Veteada Formation, in the Sierra de Famatina (west of Argentina), is one of the few records of Early Triassic age in South America verified by isotopic age and palynological assemblages. This unit is composed of sandstones, mudstones, shales, lime...
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Morgane Ledevin, Nicholas Arndt, Catherine Chauvel, Etienne Jaillard and Alexandre Simionovici
The Buck Reef is a 250?400 m thick sequence of banded black and white (B&W) cherts deposited ca. 3416 Ma ago in a shallow basin. We provide field, petrological and geochemical constraints on the chert-forming process and the origin of the banding. Wh...
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Maria Eugenia Cisternas,Jose Frutos,Eduardo Galindo,Baruch Spiro
Pág. 205 - 226
The bitumen-rich andesitic horizon emplaced in the upper part (Pabellón Formation) of the Lower Cretaceous marine sequences in the Atacama Region (Chañarcillo Group) has been formerly considered a sill. The main evidence for interpreting this horizon as ...
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