RS002 Breccia(Fault)

Class: 4D
Name: Emily Ng
Year: 2014-2015
地質年代:(化石) (岩石) Geological Age: (Fossil) (Rock)
形成:(岩石) (礦物)


Formation:(Rock) (Mineral)

Fault breccias are tectonites formed primarily by tectonic movement along a localized zone of brittle deformation (a fault zone) in a rock formation or province.

The grinding and milling occurring when the two sides of the fault zone moving along each other results in a material that is made of loose fragments. Breccia is friction between the rocks on the fault by crushing, crushing and other effects or faults wall. Their shape and arrangement can be further divided into rifting breccias and breccia crushed




Fault breccia has no cohesion, it is normally an unconsolidated rock type, unless cementation took place at a later stage. By particle larger than 2mm of rounded, sub-rounded, angular rock fragments (gravel) made ​​by cementation. Colour change depends on clast and matrix composition. Hardness is variable. It depends on clast composition and strength of cement. It reflecting the composition and nature of the rock, and can be determine the flow of tectonic movement, the ancient sea, shore location and ancient rivers. Fault breccia more complex, different sides of the fault breccia rock formations uneven fracture surface from the closer the more fine brecciated

用途:(岩石) (礦物)


Application: (Rock) (Mineral)

Breccia is used as a trade name for a group of dimension stone products with a broken, angular pattern. Names such as “Breccia Oniciata”, “Breccia Pernice” and “Breccia Damascata” are cut and polished limestones and marbles that reveal a broken, angular pattern. These breccias are used as architectural stones for interior building veneers, tiles, window sills and other decorative applications. These are proprietary names applied to the rock from specific quarries. Also use for decorative stones, tiles, tombstones, monuments, jewelry, aquifers, natural gas and petroleum reservoirs

分佈:(岩石) (礦物)


Distribution: (Rock) (Mineral)

gossan fault breccia occurs uphill, in quartz schist rubble. Usually found in North American .