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Technology of MT Data Interpretation and Results Obtained at GeotraversesNormal access

Authors: V.P. Bubnov, E.D. Aleksanova and A.G. Yakovlev
Event name: 2nd EAGE St Petersburg International Conference and Exhibition on Geosciences
Session: Deep Regional Geological Studies
Publication date: 16 October 2006
Organisations: SEG, EAGE
Language: Russian
Info: Extended abstract, PDF ( 702.39Kb )
Price: € 20

Technology of magnetotelluric (MT) data interpretation and results of MT investigations along geotraverses in Eastern Siberia are considered. New information about resistivity structure of the sediments and consolidated crust was obtained. Thick conductive Riphean layers, supposed to be good collectors, were revealed in Irkenyevsky aulacogen and Tungusskaya syneclise. It is shown that in geoelectric conditions of Yeniseisky range MT method allows to study only the upper 10 – 15 kilometers. Two types of the Earth’s crust are determined within the Siberian craton. Crust of the first one contains crustal conductive layer and corresponds to hydrocarbon perspective areas. In the crust of the second type this layer is not developed.

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