Geometría y Cinemática de un Sistema Imbricado deCabalgamientos en la Faja Pirítica Ibérica (Zona Sudportuguesa)
The Puebla de Guzmán and Valverde del Camino Anticlines consist of fault-propagation folds linked to a frontal thrust system striking N110ºE. In the Puebla de Guzmán Anticline, the thrust system has a fan imbricated geometry and represents a ~40 km-long and 4-5 km-wide frontal ramp; its internal str...
| Autores: | , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2005 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositório: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | espanhol |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8666 |
| Acesso em linha: | http://hdl.handle.net/10272/8666 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Thrust system Imbricated fan Iberian Pyritic Belt South Portuguese Zone Variscan Orogeny |
| Resumo: | The Puebla de Guzmán and Valverde del Camino Anticlines consist of fault-propagation folds linked to a frontal thrust system striking N110ºE. In the Puebla de Guzmán Anticline, the thrust system has a fan imbricated geometry and represents a ~40 km-long and 4-5 km-wide frontal ramp; its internal structure results from the tectonic stacking of thrust sheets with normal stratigraphic polarities. Some thrusts show relay geometries, as for example the Valdecascajos and the Sierra de la Estrella Thrusts. An antiform-sinform system is developed in the intervening thrust sheet. Fault-propagation folds are very conspicuous in the hanging wall of most internal thrusts, where a rather continuous reverse limb is present. Both thrust system and fault-propagation folds, as well as a locally developed crenulation cleavage, were generated in a second tectonic phase |
|---|