PICASSO- Phase I: MT Investigation of the Betic-Rif mountain system.Comparison of actual robust processing algorithms
The first phase of the MT component of the PICASSO (Project to Investigate Convective Alboran Sea System Overturn) project was carried out in Southern Spain in Sept.-Nov., 2007. Two different types of magnetotelluric (MT) equipment were used along a profile from the outskirts of Madrid to the Mediterranean Sea through the Betic Mountain Chain. This MT work is part of PICASSO,which is an international, multi-disciplinary project that aims to improve knowledge of the internal structure and plate-tectonic processes in the highly complex three-dimensional region formed by the collision of the African and European plate under the effect of the Mediterranean plate motion. In spite of low solar activity, time series data of good quality were obtained at most sites due to excellent instrumentation and careful site location. The data were processed using four different robust algorithms, and the different responses have been compared. Pseudosections of responses from this first phase show a remarkably complex subsurface structure dominated by a slightly southwards dipping, conductive slab underneath the region of the External Betic Chain. Strike direction,which varies along the profile and with depth due to the intricate morphology, has an enormous impact on the acquired responses and thereby provides a challenging framework for MT data interpretation.
Magnetotellurics Robust processing Plate-tectonics Betic Chain
Jan-Philipp Schmoldt Alan G. Jones Colin Hogg Oriol Rosell
Dublin Institute for Advanced Studies (DIAS), Dublin, Ireland University of Barcelona, Spain
国际会议
The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)
北京
英文
131-136
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）