@article{10272/9484,
year = {2001},
url = {http://hdl.handle.net/10272/9484},
abstract = {The study of c-axes distribution from sparry grains that fill microveins were used to define maximum horizontal extension directions (<j3) in two zones ofiberian Chain (Cameros Basin and Alto Tajo zone,

Castellana Branch). A strong similitude between the (o3 directions defined for the Cameros Basin and the Alto Tajo zone (NNO-SSE, NNE-SSO and NE-SO) supports the idea that these extension directions are defining episodes of extension with regional character.

The NNO-SSE extension direction has been associated with the older episode of micro-veins opening (perhaps before the Upper Cretaceous). This episode has been associated with the extensional event responsible of Cameros Basin opening (Upper jurassic-LoweCretaceous). The others two younger directions of extension (NNE-SSO and NE-SO) could be associate with the more important deformantional events of Tertiary for the Castellana Branch: Guadarrama (Capote et a I., 1990) and Altomira episodes (Muñoz-Martín, 1998). These deformantional events also has been described in the Cameros Basin},
publisher = {Sociedad Geológica de España},
keywords = {Iberian Chain},
keywords = {Calcite veins},
keywords = {C-axes, extension orientations},
title = {Estudio de la orientación preferente de ejes ópticos c de cristales de calcita en microvenas de la Cordillera Ibérica (Cuenca de Los Cameros y Rama Castellana). Nuevas aportaciones a los episodios extensionales de la Cordillera Ibérica},
title = {Study ofc-axes distribution from calcite grains-filled tension gashes ofiberian chain (Cameros Basin and

Castellana Branch). New contributions for extensional},
author = {García Cuevas, C. and Giner Robles, J. L.},
}