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The Boinás Cenozoic thrust (Cantabrian Mountains, Spain)

dc.contributor.authorVicente, Gerardo de
dc.contributor.authorGonzález Nistal, S.
dc.contributor.authorMuñoz Martín, Alfonso
dc.contributor.authorVegas, Ramón
dc.contributor.authorOlaiz Campos, Antonio
dc.contributor.authorFernández Lozano, Javier
dc.contributor.authorVicente, Raquel de
dc.date.accessioned2014-07-03T08:52:07Z
dc.date.available2014-07-03T08:52:07Z
dc.date.issued2007
dc.identifier.urihttp://hdl.handle.net/10272/8403
dc.description.abstractThe opencast gold mine of Boinás, has allowed to outcrops the contact between the variscan basement and the Cenozoic sediments. It is observable that the contact is a post - Lower Oligocene thrust, with a N40ºE trend. From a macrostructural point of view, Boinás thrust spreads along more than 10 km with a constant orientation, a vertical gap that reaches 400 m, and a NW vergence. Northwestwards another Alpine thrust develops (Tineo, A l o n s o y Pulgar , 2004) with a parallel orientation an opposite vergence. Between both thrusts a tectonic pop-down appears (Narcea Pop-down). The dynamic analysis shows that this structure was activated by a paleostress tensor with an horizontal s1 trending N139ºE, with a stress regime close to uniaxial compression (R=0.06). This stress allows the geometrical interchanges between s2 and s3. The outcrop also allows to observe a secondary population of normal faults, that fits to an extensional stress tensor (R=0.01) with s3 trending N146ºE, that is coaxial with the main compressive stress tensor. We interpret both fault populations as generated by the tectonic thrust emplacementen_US
dc.language.isospaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.otherThrusten_US
dc.subject.otherCenozicen_US
dc.subject.otherCantabrian Mountainsen_US
dc.subject.otherAlpine stressen_US
dc.titleEl cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España)en_US
dc.titleThe Boinás Cenozoic thrust (Cantabrian Mountains, Spain)eng
dc.typeinfo:eu-repo/semantics/articleen_US
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess


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