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Type: Journal article
Title: The in situ stress field of the Perth Basin, Australia
Author: Reynolds, S.
Hillis, R.
Citation: Geophysical Research Letters, 2000; 27(20):3421-3424
Publisher: Amer Geophysical Union
Issue Date: 2000
ISSN: 0094-8276
Organisation: National Centre for Petroleum Geology and Geophysics
Abstract: <jats:p>A total of 17 wells in the Perth Basin were interpreted to have 114 breakouts covering a combined length of 3.2 km and a mean σ<jats:sub>Hmax</jats:sub> orientation of 108°N. The inferred mean orientation of σ<jats:sub>Hmax</jats:sub> in the Perth Basin is broadly consistent with that in the adjacent basement, Yilgarn Block. The new data confirm that σ<jats:sub>Hmax</jats:sub> orientation in the region is consistent with other stress indicators, different depths and different geological provinces. The new data also confirm that the orientation of σ<jats:sub>Hmax</jats:sub> does not parallel the NNE direction of absolute plate velocity. Anomalous north‐south σ<jats:sub>Hmax</jats:sub> orientations identified in a number of wells in the Perth Basin can be attributed to local structural effects.</jats:p>
DOI: 10.1029/2000GL011538
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Appears in Collections:Aurora harvest
Australian School of Petroleum publications

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