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Analysis of MT Data Acquired in Victoria, Australia  

Lee, Seong-Kon (Groundwater and Geothermal Division, KIGAM)
Lee, Tae-Jong (Groundwater and Geothermal Division, KIGAM)
Uchida, Toshihiro (AIST)
Park, In-Hwa (Groundwater and Geothermal Division, KIGAM)
Song, Yoon-Ho (Groundwater and Geothermal Division, KIGAM)
Cull, Jim (Monash University)
Publication Information
Geophysics and Geophysical Exploration / v.11, no.3, 2008 , pp. 184-196 More about this Journal
Abstract
We perform MT soundings in Bendigo, the northern part of Victoria, Australia, to investigate the deep subsurface geologic structure. The primary purpose of this survey is to figure out whether the discontinuity such as faults extends northward. The time series of MT signal were measured over 11 days at 71 measurement stations together with at remote reference, which help enhance the quality of impedance estimation and its interpretation. The impedances are estimated by robust processing using remote reference technique and then inverted with 2D MT 2D inversion. We can see that known faults are clearly imaged in MT 2D inversion. Comparing resistivity images from MT 2D inversion with interpreted boundary from reflection seismic exploration, two interpretations match well each other.
Keywords
MT; 2D inversion; Victoria; fault;
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