توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Investigation of Sabalan geothermal field structure using Magnetotelluric data
نویسنده(ها): ، ، ،
اطلاعات انتشار: چهاردهمین کنفرانس ژئوفیزیک ایران، سال
تعداد صفحات: ۵
Sabalan geothermal field is a high potential geothermal system in Ardebil province N–W of Iran that is now under investigation for the electricity power generation. In this paper the fourteen MT stations of 1998 MT data set were used along a profile perpendicular to the main geological structures in order to assess the three main elements of Sabalan geothermal field namely cap–rock, reservoir and heat source. TE and TM mode data and skew parameter show that the earth dimensionality differs from site to site, so we examine the joint 2D inversion along the profile. The two–dimensional inversion has been done by using a code from Siripunvaraporn and Egbert (2000).The resulting model show a pattern of high–very low–low resistivity with depth. The high resistive layer at the surface is governed to a great extent by basalt, andesitic and old trachyandesitic flows and other impermeable rocks that have thermal conduction and acts as the cap–rock of the system. The second layer is a very conductive layer and interpreted as the reservoir with thermal convection and hot fluids contained in its fractured and pores. The resistive basement is a hot and solid magmatic intrusion and interpreted as a heat source that produces a conductive heat flow towards the reservoir. As a result, the shallow resistivity model of Sabalan area is in a good correlation with the geological features and the common conceptual resistivity model for the geothermal reservoir structure.<\div>

۲Using the magnetovariational sounding method to image the deep resistivity structure of the Trans–European suture zone
نویسنده(ها): ، ،
اطلاعات انتشار: فيزيك زمين و فضا، سال
تعداد صفحات: ۱۱
The conductivity distribution across the Trans–European Suture Zone (TESZ) is presentedbased on the measurements along a 400 km northeastern directed profile, starting fromthe German–Polish Basin, crossing the TESZ and ending at the East European Craton.Two–dimensional inversion was applied to magnetotelluric transfer functions andmagnetovariational responses corresponding to 38 long–period simultaneously observedsites. Input data for the inversion procedure were created by rotating all transfer functionsto strike direction obtained from strike and dimensionality analysis. The results show athick sedimentary cover, several crustal inhomogeneities and a deep conductive structurebelow the center of the TESZ . In order to achieve a stable model, several sensitivityanalysis were carried out

۳Detection of a fault zone in the south of Bam using CSTMT method
اطلاعات انتشار: فيزيك زمين و فضا، سال
تعداد صفحات: ۱۳
نمایش نتایج ۱ تا ۳ از میان ۳ نتیجه