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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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González Casado, José Manuel and García Cuevas, C. and Gumiel, Pablo and Giner Robles, Jorge L. and Moreno, A. (2004) Determinación de valores absolutos de paleoesfuerzos, basados en el maclado de la calcita, en el frente norte de la Sierra de Cameros (Cordillera Ibérica). Geotemas, 6 (5). pp. 225-227. ISSN 1576-5172

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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.


Item Type:Article
Uncontrolled Keywords:Paleostress, Calcite, Twins, Differential stress, Iberian Chain
Subjects:Sciences > Geology > Geodynamics
ID Code:61045
Deposited On:22 Jun 2020 11:33
Last Modified:22 Jun 2020 11:33

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