@article{10272/12566, year = {1996}, url = {http://hdl.handle.net/10272/12566}, abstract = {In this paper, a new structural analysis of the Somosierra sector of the Spanish Central System is presented. Two main tectonothermal events are recorded: D1 is compressional and related to the variscan collision that produces northeast-eastward thrusting and associated folding; D2 has an extension nal character and produces, as the main feature, the development of a kilometric-scale ductile shear zone and a series of associated low grade detachments where D1 structures are overprinted and trasposed at all scales. The final structural pattern is completed by a set of late westward facing minor D3 structures that did not significantly modified the previous geometry.}, publisher = {Sociedad Geológica de España}, title = {Evolución estructural de la zona de cizalla extensional de Berzosa-Riaza, sector de Somosierra, Sistema Central Español}, title = {Structural evolution of the Berzosa-Riaza extensional shear zone, Somosierra sector, Spanish Central System}, author = {Hernaiz Huerta, Pedro P. and Escuder Viruete, Javier and Rodríguez Fernández, L. R. and Valverde Vaquero, Pablo and Dunning, G. R.}, }