Determinación de valores absolutos de paleoesfuerzos, basados en el maclado de la calcita, en el frente norte de la Sierra de Cameros (Cordillera Ibérica).

González Casado, José Manuel; García Cuevas, C.; Gumiel, Pablo; Giner Robles, Jorge Luis; Moreno, A.

Determinación de valores absolutos de paleoesfuerzos, basados en el maclado de la calcita, en el frente norte de la Sierra de Cameros (Cordillera Ibérica).

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Official URL

http://www.sociedadgeologica.es/publicaciones_geotemas.html

Publication date

2004

Authors

González Casado, José Manuel

García Cuevas, C.

Gumiel, Pablo

Giner Robles, Jorge Luis

Moreno, A.

Publisher

Sociedad Geológica de España.

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URI

https://hdl.handle.net/20.500.14352/52553

Abstract

Calcite e-twin density (twins/mm) and percentage of calcite grains with one and two twin sets from sparry grains that fill microveins were used to precise the differential stress related with the inversion of the Cameros Basin, a Mesozoic sedimentary basin located in the northwestern part of Iberian Chain (Spain). The results obtained using techniques based on the percentage of twined grains yield better results that those techniques based on twin density. The deduced stress magnitudes fit well with the differential stress interval proposed for fold-thrust belt domains. Combination of twin data with rock mechanics data provides adequate estimations of differential stresses.