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Characterisation of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data.

Gallardo, Luis A. and Meju, Maxwell (2003) Characterisation of heterogeneous near-surface materials by joint 2D inversion of dc resistivity and seismic data. Geophysical Research Letters, 30 (13). pp. 1658-1661. ISSN 0094-8276

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Abstract

We have developed a robust 2D joint inversion scheme incorporating the new concept of cross-gradients of electrical resistivity and seismic velocity as constraints so as to investigate more precisely the resistivity-velocity relationships in complex near-surface environments. The results of joint inversion of dc resistivity and seismic traveltime data from collocated experiments suggest that one can distinguish between different types or facies of unconsolidated and consolidated materials, refining a previously proposed resistivity-velocity interrelationship derived from separate inversions of the respective data sets. A consistent interpretive structural model can be obtained from the joint inversion models.

Item Type: Article
Journal or Publication Title: Geophysical Research Letters
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21387
Deposited By: ep_ss_importer
Deposited On: 12 Jan 2009 15:19
Refereed?: No
Published?: Published
Last Modified: 09 Apr 2014 20:25
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21387

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