Paleoseismology, Quaternary slip-rate and heat flow of the Benis Fault (SE of Spain)
We have carried out a paleoseismic analysis of the Benis Fault, located at the southeast part of Spain. We have estimated the last earthquake size-magnitude and time, from evidence of celling collapse and displaced broken carbonate blocks (M6 and 65 ± 18 ka BP). Our analysis suggests that the tecton...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universidad Nacional de Educación a Distancia |
| Repositorio: | e-spacio. Repositorio Institucional de la UNED |
| Idioma: | inglés |
| OAI Identifier: | oai:e-spacio.uned.es:20.500.14468/13016 |
| Acceso en línea: | https://hdl.handle.net/20.500.14468/13016 |
| Access Level: | acceso abierto |
| Palabra clave: | paleoseismology Benis fault slip rate heat flux Spain |
| Sumario: | We have carried out a paleoseismic analysis of the Benis Fault, located at the southeast part of Spain. We have estimated the last earthquake size-magnitude and time, from evidence of celling collapse and displaced broken carbonate blocks (M6 and 65 ± 18 ka BP). Our analysis suggests that the tectonic slip-rate of the Benis Fault is lesser than 0.01 mm/yr. Additionally we have measured the deep thermal profile of the Benis Cave (-350 m of vertical development, Cieza, SE of Spain), from single rock point temperature measurements in different field campaigns and for a period of 2 years. The temperature increases with depth, being in consequence a reverse thermal profile in comparison with normal gradients in deep caves. Furthermore, we have estimated the Vertical Geothermal Gradient with a value of 1.85ºC/100 m for the deepest zone (-150-290 m). Finally, we have calculated the heat flux of 0,46 mWm2. |
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