A geological interpretation of the Echuca magnetotelluric survey, Victoria

Zara Dennis, David Moore, James Cull

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    Abstract

    The northern part of the auriferous Bendigo Zone is obscured by thick Cenozoic sediments of the Murray Basin, and as such remains poorly explored. Consequently, in addition to the 2006 deep seismic line obtained in Central Victoria, a magnetotelluric (MT) survey was completed to provide a signature for the major structures previously defined in the Bendigo area. Based on these correlations a second MT line, which we present here, was completed some 50 kmto the north of the original line in an attempt to trace the deep structural trends extending north to the Victorian/NSW border. Extending some 155 km across the central north of the state, data were collected at 52 sites along an east-west profile. The new electrical conductivity model generated correlates well with the results from the southern transect; it confirms previously identified structural trends to the north and identifies additional unknown deep structures, thus adding to the understanding of the geology of the covered region and to its goldbearing potential.
    Original languageEnglish
    Pages (from-to)587 - 597
    Number of pages11
    JournalAustralian Journal of Earth Sciences
    Volume58
    Issue number6
    DOIs
    Publication statusPublished - 2011

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