Applications of the Magnetic and Electromagnetic methods in Geophysical Explorations: some recent case studies
عنوان دوره: هجدهمین کنفرانس ژئوفیزیک ایران
نویسندگان
Tehran University
چکیده
Magnetic and electromagnetic methods are widely employed in geophysical explorations such as detection of orebodies, archeology, near surface layers, geothermal resources, hydrocarbon reservoirs, deep water, geological structures and tectonic features. In this paper I report some recent interpretations on Magnetic, Magnetotelluric (MT), Radiomagnetotelluric (RMT), Ground Penetrating Radar (GPR) and Airborne Magnetic and Electromagnetic (EM) data on different targets in Iran, Germany and Sweden measured or modeled by the Department of Geomagnetism of the Institute of Geophysics of the University of Tehran (IGUT) since 2007. Ground and airborne magnetic data are amongst very essential datasets for large scale surveys on ore deposits and hydrocarbon reservoirs, respectively. Airborne magnetic and electromagnetic data are also quite informative to resolve subsurface geology and tectonics across Zagros mountain range and Neyriz ophiolites. In Golestan plane there are very successful experiences with deep water investigations employing Magnetotellurics as well as the geothermal surveys in Mahallat region.
GPR data is very helpful in near surface studies like sub grade of railways and roads. It is also used as constraint for RMT data to detect an aquifer in Sweden
کلیدواژه ها
 
Title
Applications of the Magnetic and Electromagnetic methods in Geophysical Explorations: some recent case studies
Authors
Behrooz Oskooi
Abstract
Magnetic and electromagnetic methods are widely employed in geophysical explorations such as detection of orebodies, archeology, near surface layers, geothermal resources, hydrocarbon reservoirs, deep water, geological structures and tectonic features. In this paper I report some recent interpretations on Magnetic, Magnetotelluric (MT), Radiomagnetotelluric (RMT), Ground Penetrating Radar (GPR) and Airborne Magnetic and Electromagnetic (EM) data on different targets in Iran, Germany and Sweden measured or modeled by the Department of Geomagnetism of the Institute of Geophysics of the University of Tehran (IGUT) since 2007. Ground and airborne magnetic data are amongst very essential datasets for large scale surveys on ore deposits and hydrocarbon reservoirs, respectively. Airborne magnetic and electromagnetic data are also quite informative to resolve subsurface geology and tectonics across Zagros mountain range and Neyriz ophiolites. In Golestan plane there are very successful experiences with deep water investigations employing Magnetotellurics as well as the geothermal surveys in Mahallat region.
GPR data is very helpful in near surface studies like sub grade of railways and roads. It is also used as constraint for RMT data to detect an aquifer in Sweden
Keywords
Airborne geophysics, Electromagnetic, GPR, Magnetic, Magnetotelluric and RMT