Imaging Deep Electrical Resistivity Structure at the Eastern Part of the Aegean Region by Magnetotellurics Method
Nineteen long period magnetotelluric (MT) soundings were performed along a 250 km profile across the Western Anatolia aiming to image the deep crustal and upper mantle geoelectrical features of a rapidly extending Aegean region and relating them to geological structures and active tectonics. The magnetotelluric impedance tensor elements were obtained for a 20-13000 second period range. The two-dimensional inversion of TE and TM modes following Groom-Bailey decomposition show (i) there is a deep highly conductive block beneath the two branches of the North Anatolian Fault Zone, (ii) Izmir-Ankara Suture Zone appear as a resistive boundary (iii) a highly conductive block is dipping to south beneath the resistive Menderes Massif. These high conductivity zones may reflect methamorphic fluids, released during the amalgamation of the Aegean crust.
Magnetotellurics Aegean electrical resistivity tectonics
TANK S Bulent HONKURA Yoshimura OGAWA Yasuo MATSUSHIMA Masaki OSHIMAN Naoto TUNCER M Kemal TOLAK Elif
Bogazici Uni., Kandilli Obs & E.R.I., Istanbul, Turkey Tokyo Inst. of Tech., Dept. of Earth and Planetary Sci., Tokyo, Japan Tokyo Inst. of Tech., Volcanic Fluid Research Center, Tokyo, Japan Kyoto Uni., DPRI, Kyoto, Japan
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
160-165
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）