| A series of NE-SW-striking shear and cataclastic fault zones are located in a belt between the largest Wiborg and Riga plutons. |
| They have been referred to as microfaults, cataclastic slip bands, braided shear fractures, granulation seams or band faults. |
| They are strongly silicifyed, very well foliated and are characterized by cataclastic textures with very fine mylonitic grains containing visible or pulverised fragments. |
| Mylonites are the products of extreme cataclastic deformation. |
| There are three categories of breccia: sedimentary, pyroclastic or igneous, and cataclastic. |
| In contrast, the Lasrdal-Gjende fault system is brittle and marked by a much thinner zone of cataclastic fault rock. |
