Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/92056
Type: Thesis
Title: Magnetotelluric and Seismic Joint Inversion using Nelder-Mead Minimization
Author: Carter, S.
Issue Date: 2012
School/Discipline: School of Earth and Environmental Sciences
Abstract: It is often assumed that the combination of geophysical data within a single inversion framework yields a geologically more robust and reliable model than can be obtained from separate individual inversions. In this study this assumption is questioned with specifi c reference to magnetotelluric (MT) and seismic data. Forward modelling, incorporating the Nelder-Mead parameter optimization method, is used to test the hypothesis that zones with similar reflectivity represent geological zones with similar electrical properties. This is a new, geometric approach, to joint inversion. Subsurface structures at a potential mine site are examined using seismic and MT inversion results, and aspects of the deposit are interpreted from the perspective that preconceptions and assumption influence the results of joint inversion. A number of statistical techniques are then employed to examine if the geological processes that produce changes in elasticity also have some impact on resistivity. The two dimensional seismic reflection and MT data used to examine these concepts are from the Hillside Project Area, Yorke Peninsula South Australia.
Dissertation Note: Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Earth and Environmental Sciences, 2012
Keywords: Honours; Geology; joint, inversion; magnetotelluric; seismic; Nelder; Mead; simplex; Hillside
Description: This item is only available electronically.
Provenance: This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exceptions. If you are the author of this thesis and do not wish it to be made publicly available, or you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals
Appears in Collections:School of Physical Sciences

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