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(Article of periodic en Anglais - 2012)

Document title

A Miocene Continental Basin associated with the back thrusting of the Eastern Sierras Pampeanas in the Santa Maria Valley, Northwestern Argentina

Authors(s) and Affiliation(s)

MON R. ; GUTIÉRREZ A.A. ; SABAT F. ; IAFFA D. ;

Abstract

This study addresses the structures of the Miocene sequences in the Santa María Valley, on which there has previously been a lack of information. The Santa María Valley was formed by 2 superposed tectonic events. The first event, during a phase of the Miocene (ca. 13-5 Ma), was an extension and volcanism during which a sedimentary succession of non-marine beds accumulated, lying directly on the crystalline Proterozoic basement. A compressional event followed, causing folding and thrusting. This contraction resulted in antiforms of sedimentary beds and the crystalline basement, and large basement-cored antiforms were formed. The Miocene sedimentation took place over an irregular floor with offsets delimited by normal faults. The most significant step strikes NW-SE and x approximately coincides with the fault trending along the Amaicha Valle. - (NF)

Source

Article of periodic

published at : Italian Journal of Geosciences / ISSN 2038-1719

Editor : Società Geologica Italiana, Roma - ITALIE (2009)

Millesime : 2012, vol. 131, no1 [pp. 123-135]

Bibliographic references : 57 ref.

Collation : 17 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 5205

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.3301/IJG.2011.27

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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