Breccia formation by particle fluidization in fault zones: Implications for transitory, rupture-controlled fluid flow regimes in hydrothermal systems
Breccias in the Rusey Fault (Cornwall, UK) and the Roamane Fault (Porgera gold deposit, Papua New Guinea) provide insights about the dynamics of fluid flow and flow velocities when fault ruptures breach overpressured reservoirs of hydrothermal fluid. These faults contain cockade-like breccias in which rock fragments are mantled by spheroidal overgrowths of hydrothermal minerals. At Rusey, the overgrowths are quartz-dominant, whereas in the Roamane Fault overgrowths are composed of...[Show more]
|Collections||ANU Research Publications|
|Source:||American Journal of Science|
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