Determinación de valores absolutos de paleoesfuerzos, basadosen el maclado de la calcita, en el frente norte de la Sierra de Cameros (Cordillera Ibérica)
- J.M. González Casado 1
- C. García Cuevas 1
- P. Gumiel 2
- J. Giner Robles 3
- A. Moreno 1
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1
Universidad Autónoma de Madrid
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- 2 Instituto Geológico y Minero de España (IGME)
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3
Universidad Complutense de Madrid
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ISSN: 1576-5172
Año de publicación: 2004
Título del ejemplar: VI CONGRESO GEOLÓGICO DE ESPAÑA, ZARAGOZA, 12-15 JULIO, 2004
Número: 6
Páginas: 225-227
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
Calcite e-twin density (twins/mm) and percentage of cal cite grains with one and two twin sets fromsparry 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 resultsthat 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 rockmechanics data provides adequate estimations of differential stresses