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Artículo

3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina

Richarte, Daniel; Lupari, Marianela NadiaIcon ; Pesce, AgustinaIcon ; Nacif Suvire, Silvina ValeriaIcon ; Gimenez, Mario ErnestoIcon
Fecha de publicación: 01/2018
Editorial: Elsevier
Revista: Geoscience Frontiers
ISSN: 1674-9871
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Meteorología y Ciencias Atmosféricas

Resumen

The San Rafael Block (SRB) is part of one of the main retroarc volcanic provinces in southern Central Andes in Mendoza, Argentina. This block is located in the Andean foothills between the orogenic front and foreland basement uplifts of late Miocene age. In order to analyze the geochronological evolution of the Quaternary volcanism in the region, several geologic and geophysical studies have been conducted. Nevertheless, the crust, where the SRB is located, has not been well characterized yet. Based on gravimetric and magnetic data, together with isostatic and elastic thickness analyses, we modeled the crustal structure of the area. Information obtained has allowed us to understand the crust where the SRB and the Payenia volcanic province are located. Bouguer anomalies indicate that the SRB presents higher densities to the North of Cerro Nevado and Moho calculations suggest depths for this block between 40 and 50 km. Determinations of elastic thickness would indicate that the crust supporting the San Rafael Block presents values of approximately 10 km, being enough to support the block loading. However, in the Payenia region, elastic thickness values are close to zero due to the regional temperature increase.
Palabras clave: San Rafael Block , Payenia; 3-D Crustal Model , Asthenospheric Wedge , Andean
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/40752
DOI: http://dx.doi.org/10.1016/j.gsf.2017.03.004
URL: https://www.sciencedirect.com/science/article/pii/S1674987117300518
Colecciones
Articulos(CCT - SAN JUAN)
Articulos de CENTRO CIENTIFICO TECNOLOGICO CONICET - SAN JUAN
Citación
Richarte, Daniel; Lupari, Marianela Nadia; Pesce, Agustina; Nacif Suvire, Silvina Valeria; Gimenez, Mario Ernesto; 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina; Elsevier; Geoscience Frontiers; 9; 1; 1-2018; 239-248
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