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Reynolds & Hillis 2000

Reynolds, S.D. and Hillis, R.R. (2000). The in situ stress field of the Perth Basin, Australia. Geophysical Research Letters 27: doi: 10.1029/2000GL011538. issn: 0094-8276.

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 &sgr;Hmax orientation of 108 ¿N. The inferred mean orientation of &sgr;Hmax in the Perth Basin is broadly consistent with that in the adjacent basement, Yilgarn Block. The new data confirm that &sgr;Hmax 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 &sgr;Hmax does not parallel the NNE direction of absolute plate velocity. Anomalous north-south &sgr;Hmax orientations identified in a number of wells in the Perth Basin can be attributed to local structural effects. ¿ 2000 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Tectonophysics, Stresses—crust and lithosphere, Tectonophysics, Stresses—general, Information Related to Geographic Region, Australia

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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