http://www.cnr.it/ontology/cnr/individuo/prodotto/ID274252
The Calama-Olacapato-El Toro fault system in the Puna Plateau, Central Andes: Geodynamic implications and stratovolcanoes emplacement (Articolo in rivista)
- Type
- Label
- The Calama-Olacapato-El Toro fault system in the Puna Plateau, Central Andes: Geodynamic implications and stratovolcanoes emplacement (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.tecto.2013.06.013 (literal)
- Alternative label
Gianluca Norini, Walter Baez, Raul Becchio, Jose Viramonte, Guido Giordano, Marcelo Arnosio, Annamaria Pinton, Gianluca Groppelli (2013)
The Calama-Olacapato-El Toro fault system in the Puna Plateau, Central Andes: Geodynamic implications and stratovolcanoes emplacement
in Tectonophysics (Amst. Online); Elsevier, Amsterdam (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gianluca Norini, Walter Baez, Raul Becchio, Jose Viramonte, Guido Giordano, Marcelo Arnosio, Annamaria Pinton, Gianluca Groppelli (literal)
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- http://www.sciencedirect.com/science/article/pii/S0040195113003788 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- a Istituto per la Dinamica dei Processi Ambientali - Sezione di Dalmine, Consiglio Nazionale delle Ricerche, via Pasubio 5, 24044 Dalmine, Italy
b Instituto Geonorte, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Avda. Bolivia 5150, 4400 Salta, Argentina
c Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo S. Leonardo Murialdo 1, 00146 Rome, Italy
d Istituto per la Dinamica dei Processi Ambientali - Sezione di Milano, Consiglio Nazionale delle Ricerche, c/o Università degli Studi di Milano, via Mangiagalli 34, 20133 Milano, Ital (literal)
- Titolo
- The Calama-Olacapato-El Toro fault system in the Puna Plateau, Central Andes: Geodynamic implications and stratovolcanoes emplacement (literal)
- Abstract
- The structural evolution of the Puna Plateau is characterized by the activity of both orogen-parallel and
orogen-oblique faults. Understanding the possible relationship between these two structural styles, their
geodynamic implications and the influence on the migration of magmas is important to get insights into
the tectonic and magmatic evolution of the Central Andes. In this study, we present a structural analysis of
the orogen-oblique Calama-Olacapato-El Toro fault system and the surrounding orogen-parallel thrust faults
in the central-eastern Puna Plateau. Morphostructural analysis and field mapping reveal the geometry, kinematics
and dynamics of the tectonic features in the studied area. We propose a three-dimensional geometrical
reconstruction of the main fault planes showing their attitude and intersections at depth. The study
indicates that the crust underwent simultaneous deformation along both the vertical transcurrent Calama-
Olacapato-El Toro fault system and the low-angle thrust faults, and that the back-arc portion of the
Calama-Olacapato-El Toro fault system developed as a transfer zone among the main N-striking thrusts.
Our model considers that both orogen-parallel and orogen-oblique fault systems should be regarded as
parts of the same tectonic system, accommodating crustal shortening of a thickened crust. The study suggests
that the tectonic control on the magma and fluid circulation in the crust is mainly related to the geometry of
the fault planes and the orientation of the stress field, with a previously unrecognized important role played
by the orogen-parallel thrust faults on the emplacement of the stratovolcanoes. (literal)
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