Automated estimation of uncertainties in a 3D geological model of the Sandstone Greenstone Belt, Yilgarn Craton, Western Australia

Ruth Murdie; Florian Wellman; Klaus Gessner

doi:10.1071/ASEG2015ab193

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

ISSN: 2202-0586
E-ISSN:

oa Automated estimation of uncertainties in a 3D geological model of the Sandstone Greenstone Belt, Yilgarn Craton, Western Australia
Authors Ruth Murdie^a, Florian Wellman^b and Klaus Gessner^c
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^a Geological Survey of Western Australia, 100 Plain Street, Perth, , 6004, [email protected] ^b RWTH Aachen University, Schinkelstr. 2, 52062, Aachen, , Germany, [email protected] ^c Geological Survey of Western Australia, 100 Plain Street, Perth, , 6004, [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/ASEG2015ab193
- Published online: 01 Dec 2015

Abstract

Geological models that represent the structure of the subsurface, are becoming a regular product of geological surveys. It is widely accepted that the sparse data at depth and the ambiguity of structural interpretations of geophysical data lead to inherent model uncertainties . The analysis and visualisation of model uncertainties is therefore the scope of current research. We here apply a recently developed method to estimate uncertainties to a 3D model of the Sandstone Greenstone Belt in the Archean Yilgarn Craton in Western Australia. On the basis of errors in geological parameters, a suite of probable models is generated and analysed. Our results show that visualisations of unit probability and information entropy provide suitable methods analyse uncertainties in this geological model.

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References

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Article Type: Research Article

Keyword(s): 3D geological models; errors; geophysical inversion; uncertainty; Yilgarn Craton

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oa Automated estimation of uncertainties in a 3D geological model of the Sandstone Greenstone Belt, Yilgarn Craton, Western Australia

Abstract

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