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Imaging Structure Using AMT for Hydrological Modelling in the Western USA
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface 2005 - 11th European Meeting of Environmental and Engineering Geophysics, Sep 2005, cp-13-00104
Abstract
B053 Imaging structure using AMT for hydrological modelling in the western USA Summary 1 Inversion of audiomagnetotelluric (AMT) sounding data collected in Spring Valley Nevada USA shows significant two-dimensional (2D) structure within the upper kilometre of the valley and helps define the shallow basement surface. The depth-to-basement profile provided by the AMT inversion is in good agreement with an independent determination made from gravity measurements. The survey was conducted as a test to determine the applicability of the AMT method to mapping basin structure to depths of 1 km or more. The results exceeded expectation and future surveys are planned