The available evidence suggests the possibility of karst dissolution, collapse and brecciation, followed by lithification. |
The thrust zone displays significant brecciation although no slip planes were located. |
Locally, intense brecciation gave rise to angular vein quartz fragments enveloped by a matrix of massive hematitic rock. |
Anomalous gold, silver, and arsenic values appear to be associated with areas of more intense multiple-stage silicification and brecciation. |
Progressive intrusion and hydraulic fracturing gave rise to local brecciation of the banded rocks. |
The mineralization appears to be located at the intersection of two regional structural trends where deformation has produced intense cataclasis and brecciation. |