General
A breccia rocks is the one of sedimentary rocks, content fragment, matrix and cements. Which in the processing by nature, the sediment were transported, sorted, compacted and desiccate.
In the nature, those exposed in area of sedimentation . Should be on the flat ground location. The media transportation should a power current water, or glacier. The water power should a flood river or in big river floodplain.
Material sedimentation content host rock fragments. The fragment were the granite, phyllite, tonalite, quartz vein, or intrusion rocks others. With combine and become mixed during transported. Cement and matrix come with the very fine sand or clay materials.
The terminology of Breccia is sedimentary rocks. But in the name Breccia also for the case as Fault Breccia, Hydrothermal Breccia.
Both understanding were the related to the mineralization of gold occurence in the subsurface.
Exploration Found Breccia
In the exploration work and if you found the exposed. So that you need to make a description.
- What is the texture of the exposed rocks
- Fragments of Breccia
- Matrix of Breccia
- Cement of Breccia
- Fault Breccia
- Hydrothermal Breccia
Take careful your Interpretation
Breccia , both for the fault or hydrothermal should you interpret. Don't in a harry naming the breccia rocks, otherwise lost of your interpretation.Look at the fragment content, matrix content and make sure . Then to naming the rocks and you have a representative data.
Some time the weathered rocks of quartz vein content iron can be a brecciated. Specially in the surface of lateritic iron. In this situation let you spent for while and take your time relax. Think first the breccia is from subsurface process or just the surface lateritic efect.
Often found the iron filling fracture in quartz on the surface. I found the exposed during iron exploration.