| Brecciation likely occurred during both excavation and modification stages. |
| Locally, intense brecciation gave rise to angular vein quartz fragments enveloped by a matrix of massive hematitic rock. |
| Progressive intrusion and hydraulic fracturing gave rise to local brecciation of the banded rocks. |
| Anomalous gold, silver, and arsenic values appear to be associated with areas of more intense multiple-stage silicification and brecciation. |
| The paucity of outcrop in the Acraman depression indicates that the bedrock beneath the depression is strongly disrupted by brecciation and jointing. |
| The available evidence suggests the possibility of karst dissolution, collapse and brecciation, followed by lithification. |
