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Optimally oriented 'fault-valve' thrusts: Evidence for aftershock-related fluid pressure pulses?

Micklethwaite, Steven


A thrust-vein network from the Triumph gold deposit, Western Australia, is explained in terms of an extremely high rate of fluid-pressure increase, prior to failure, relative to the rate of stress increase. The thrust fault is a small-displacement fault characterized by a thick, fault-parallel shear vein, plus multiple low-angle extension veins, with orientations that demonstrate the thrust was optimally oriented relative to the locally imposed crustal stresses. Large extension veins have...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Geochemistry, Geophysics, Geosystems. G3
DOI: 10.1029/2007GC001916


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