Characterizing the subsurface structure and stress of New Zealand's geothermal fields using borehole images

McNamara, David D ORCID: 0000-0001-9789-2436, Massiot, Cecile and Milicich, Sarah M (2017) Characterizing the subsurface structure and stress of New Zealand's geothermal fields using borehole images EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY 2017, EGU DIVISION ENERGY, RESOURCES & ENVIRONMENT (ERE), 125. pp. 273-282. ISSN 1876-6102

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Abstract

Borehole imaging captures geological information on lithology, structure, and stress in the Earth's subsurface. This paper synthesises currently analysed borehole imaging data acquired in geothermal fields in the Taupo Volcanic Zone. Structure and stress orientations agree with the tectonic trend, though display variation between and within geothermal fields. Structural variability is related to larger scale rift fault architecture, while stress orientation variations are related to active structures. Borehole images also provide information on structural fluid flow pathways in TVZ geothermal fields showing structures with NE-SW and E-W strike orientations and wide fractures occur within fluid flow zones.

Item Type:	Article
Additional Information:	publisher: Elsevier articletitle: Characterizing the subsurface structure and stress of New Zealand’s geothermal fields using borehole images journaltitle: Energy Procedia articlelink: http://dx.doi.org/10.1016/j.egypro.2017.08.176 content_type: article copyright: © 2017 The Author(s). Published by Elsevier Ltd.
Uncontrolled Keywords:	geothermal, New Zealand, Taupo Volcanic Zone, fluid flow, fractures, stress
Depositing User:	Symplectic Admin
Date Deposited:	16 Aug 2019 07:40
Last Modified:	23 May 2026 01:46
DOI:	10.1016/j.egypro.2017.08.176
Open Access URL:	https://doi.org/10.1016/j.egypro.2017.08.176
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3051910
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