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By Franco Tassi, Orlando Vaselli, Alberto Tomas Caselli

ISBN-10: 3662480042

ISBN-13: 9783662480045

ISBN-10: 3662480050

ISBN-13: 9783662480052

This publication presents a entire description of the volcanological, petrological and geochemical beneficial properties of the Copahue volcano, positioned on the border among Argentina and Chile. medical stories are constrained for this volcanic method, because of its distant place and tough entry in iciness. even if, Copahue is without doubt one of the such a lot energetic volcanic platforms within the southern Andes. tracking the volcano's job is of utter significance, because it offers technique of lifestyles for the close by village of an identical identify, web hosting the world's highest-located hot-springs hotel.
This book's objective is to provide the present tracking actions, and to explain destiny learn courses which are deliberate so one can mitigate volcanic dangers. distinctive consciousness is hence dedicated to the social and commercial actions just about the volcano, similar to overall healthiness cures and geothermal strength exploitation.
In a distinct part, the Copahue volcano is gifted as a terrestrial smooth analog for early-Earth and Mars environments.

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Extra info for Copahue Volcano

Example text

It/), the red line representing fault strike and kinematics (Melnick et al. 2006; Cembrano and Lara 2009). 6 earthquake-induced normal stress change resolved on the N60 °E-striking reconstructed Copahue magma pathway. Vertical as well as inclined receiver surfaces are taken into account (attitude expressed as dip direction/dip angle), in a depth range of 1–9 km below the volcano The long geological history of this sector of the Andes results in a really complex pattern of structures, with the superimposition of different tectonic phases.

The CVFS kinematics is in agreement with the deflation observed by Velez et al. (2011), confirming that these are the recentmost structures in the area, and thus they are more recent than the Chanco-Co structure. As suggested by Melnick et al. (2006), no evidence of folds on the topographic surface was identified; the lava flows display a tabular geometry, and local folding can be explained with the rotation due to the normal movements (drag) along the fault plane. The coeval presence of fold anticlines and parallel reverse faults can be related to the same stress field, but in this case the σhmax has to be rotated (about 90°) with respect to the regional one (N80 °E–N90 °E; Cembrano and Lara 2009).

Along the same structure a geothermal well is in operation (Las Mellizas lake, Fig. 4b), and a recent lava flow shows open fractures (Fig. 4b). This trend results parallel to a regional one that is affecting the northern border of Copahue and shows its morphological expression also in the Caviahue lake and at the Copahue pass (Fig. 4a). In addition, close to the Copahue village, in the large crateric depression called Anfiteatro, two N120 °E-aligned lava domes are emplaced. The ENE-WSW-oriented structures show a more complex trend but, at the same time, they testify to the presence of more recent activity, with open fractures, soil displacement, etc (Figs.

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Copahue Volcano by Franco Tassi, Orlando Vaselli, Alberto Tomas Caselli


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