El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España)
The 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...
| Authors: | ; ; ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2007 |
| Country: | España |
| Institution: | Universidad de Huelva (UHU) |
| Repository: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Language: | Spanish |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8403 |
| Online Access: | http://hdl.handle.net/10272/8403 |
| Access Level: | Open access |
| Keyword: | Thrust Cenozic Cantabrian Mountains Alpine stress |
| _version_ | 1878739143836565504 |
|---|---|
| author | Vicente, Gerardo de |
| author2 | González Nistal, S. Muñoz Martín, Alfonso Vegas, Ramón Olaiz Campos, Antonio Fernández Lozano, Javier Vicente, Raquel de |
| author2_role | author author author author author author |
| author_browse | Fernández Lozano, Javier González Nistal, S. Muñoz Martín, Alfonso Olaiz Campos, Antonio Vegas, Ramón Vicente, Gerardo de Vicente, Raquel de |
| author_facet | Vicente, Gerardo de González Nistal, S. Muñoz Martín, Alfonso Vegas, Ramón Olaiz Campos, Antonio Fernández Lozano, Javier Vicente, Raquel de |
| author_role | author |
| collection | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| description | The 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 emplacement |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_bbe42bf2fb3f2ea6ee73c6bdca59d8a3 |
| institution | Universidad de Huelva (UHU) |
| instname_str | Universidad de Huelva (UHU) |
| language | spa |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ariasmontano.uhu.es:10272/8403 |
| publishDate | 2007 |
| publishDateSort | 2007 |
| reponame_str | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| spelling | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) The Boinás Cenozoic thrust (Cantabrian Mountains, Spain) Vicente, Gerardo de González Nistal, S. Muñoz Martín, Alfonso Vegas, Ramón Olaiz Campos, Antonio Fernández Lozano, Javier Vicente, Raquel de Thrust Cenozic Cantabrian Mountains Alpine stress The 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 emplacement http://hdl.handle.net/10272/8403 |
| spellingShingle | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) Vicente, Gerardo de Thrust Cenozic Cantabrian Mountains Alpine stress |
| title | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| title_full | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| title_fullStr | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| title_full_unstemmed | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| title_short | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| title_sort | El cabalgamiento cenozoico de Boinás (Cordillera Cantábrica, España) |
| topic | Thrust Cenozic Cantabrian Mountains Alpine stress |
| topic_facet | Thrust Cenozic Cantabrian Mountains Alpine stress |
| url | http://hdl.handle.net/10272/8403 |