Application of seismic attributes for constraining Magnetotelluric Inversion

Cuong Van Anh Le; Brett Harris; Eric Takam Takougang; Andrew Pethick

doi:10.1071/ASEG2015ab308

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Application of seismic attributes for constraining Magnetotelluric Inversion
Authors Cuong Van Anh Le^a, Brett Harris^b, Eric Takam Takougang^c and Andrew Pethick^d
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^a DET CRC, Curtin University, ARRC/CSIRO Building, HBlock, Level 4, 26 Dick Perry Avenue, Kensington, [email protected] ^b DET CRC, Curtin University, ARRC/CSIRO Building, H Block, Level 4, 26 Dick Perry Avenue, Kensington, [email protected] ^c DET CRC, Curtin University, ARRC/CSIRO Building, H Block, Level 4, 26 Dick Perry Avenue, Kensington, [email protected] ^d DET CRC, Curtin University, ARRC/CSIRO Building, H Block, Level 4, 26 Dick Perry Avenue, Kensington, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab308
- Published online: 01 Dec 2015

Abstract

Unconstrained inversion of surface magnetotelluric data generates non-uniqueness solutions. Boundaries derived from seismic reflectively images have the potential to substantially improve MT inversion. Seismic should be highly benefic ial where significant and strong reflectors can reasonably be associated with contrast in electrical conductivity across well-defined relatively continuous boundaries. We show how seismic reflections can assist in defining such inversion controls as the smoothness penalty across known boundaries. We apply and compare a range of cooperative inversion strategies using large scale co-located magnetotelluric and seismic reflection field data sets from the Carlin style gold district in Nevada USA.

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References

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Article Type: Research Article

Keyword(s): conductivity; covariance; inversion; Magnetotelluric

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oa Application of seismic attributes for constraining Magnetotelluric Inversion

Abstract

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