A thick fault breccia separates it from the overlying Qomolangma Formation.
2.
Such breccias can be called sedimentary breccias to differentiate them from other types of breccia, e . g . volcanic and fault breccias.
3.
As the rock fractured and the two sides moved against each other, cavities were created, partly filled with broken rock ( fault breccia and fault gouge ).
4.
Zones of fault breccia and fault gouge in rocks can be a hazard for the construction of tunnels and mines, as the non-cohesive zones form weak places in the rock where a tunnel can collapse more easily.