1997年12月1日 · Hydrothermal breccias develop early during vein formation in response to the fracture propagation process. This process is well documented in structural geology studies …

1997年12月1日 · A review of the main brecciation processes occurring in hydrothermal vein-type deposits allows for the discrimination between chemical and physical mechanisms, including …

Hydromagmatic activity is responsible for breccia pipe genesis. The two-end member styles of hydromagmatic breccias are phreatomagmatic and phreatic ones.

1997年11月30日 · A review of the main brecciation processes occurring in hydrothermal vein-type deposits allows for the discrimination between chemical and physical mechanisms, including …

2016年6月10日 · PDF | Breccia Type: 1. Igneous Cemented Breccias (igneous matrix breccias) 2. Open-Space Filling, Hydrothermally-cemented... | Find, read and cite all the research you …

2024年5月8日 · Magmatic–hydrothermal breccia pipes are widespread in numerous major porphyry and epithermal gold deposits globally, representing significant repositories of metal …

2003年5月15日 · Hydrothermal alteration of the breccia manifests itself as zones of intense albitisation and minor magnetite veining. Coarse-grained aggregates of interstitial actinolite, …

2003年6月1日 · Broken rock provides easy access for permeating ore fluids, and the vast majority of hydrothermal mineral deposits contain at least some elements of breccia-controlled ore.

Three stages of breccia formation within hydrothermal veins: propagation, wear, and dilation stages, separated by two thresholds related to mechanical discontinuity and hydraulic continuity.

Their general features, i.e. environment/ depth of formation, general form/geometry, dimensions, contacts with the host rocks, fragments, matrix, alteration, mineralization, surface connection, …