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fault breccia

noun, Geology
angular rock fragments produced by fracture and grinding during faulting and distributed within or adjacent to the fault plane.
Origin of fault breccia
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for fault breccia
  • Although the source of the boulder was not found, gossan fault breccia occurs uphill, in quartz schist rubble.
  • Locally, fault breccia and slickensides provide direct evidence of fault contacts.
  • Sericite-altered dikes and carbonate-replaced fault breccia are also considered part of the lower temperature mineralization.
  • Twenty fault breccia zones are ore-control structures.

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