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(Article of periodic en Anglais - 2010)

Document title

Structural and petrographic analysis at the north-eastern margin of the Oligocene Traversella pluton (Internal Western Alps, Italy)

Authors(s) and Affiliation(s)

ZANONI D. ;

Abstract

In this work a new form surface map at 1:5000 scale of the north-eastern margin of the Oligocene Traversella pluton, synthesised from a field structural study assisted by optical petrography, is presented. Relative chronology of superposed foliations and effects of progress of contact metamorphic reactions in the contact aureole are shown on the structural map for each of the country rock-types of the Sesia-Lanzo Zone. The structural and metamorphic evolution was reconstructed across the north-eastern margin of the pluton by separating the pre- and the post-intrusive tectonic history and defining the contact aureole outline. Contact metamorphic assemblages and thermobarometric estimates indicate that this intrusive body emplaced at shallow structural levels (contact metamorphism peak conditions : T < 750°C; P < 0.2 GPa). - (NF)

Source

Article of periodic

published at : Bollettino della Società geologica italiana / ISSN 0037-8763 / CODEN BOGIAT

Editor : Società geologica italiana, Roma - ITALIE (1882- 2008)

Millesime : 2010, vol. 129, no1 [pp. 51-68]

Bibliographic references : 80 ref.

Collation : 12 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 5205

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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