Table T2. Deformation intensity scales.
Category: | 0 | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|---|
Magmatic | Isotropic: no shape fabric | Weak shape fabric | Moderate shape fabric | Strong shape fabric | ||
Crystal plastic | Undeformed | Weakly foliated | Strongly foliated | Porphyroclastic (proto)mylonite | Mylonite | Ultramylonite |
Cataclastic | Undeformed | Minor fracturing: no significant grain-size reduction | Moderate fracturing: no significant grain-size reduction |
Dense anastomosing fracturing and
incipient breccia (<20% matrix) |
Well-developed fault brecciation; rotation of clasts (20% to 70% matrix) | Cataclasite (>70% matrix) |
Joints | Unfractured | Minor fracturing (1 per 10 cm) |
(1 to 5 per 10 cm) | (>5 per 10 cm) | ||
Veins | No veins | Occasional veins (= filled fractures) (1 per 10 cm) |
Moderate veining (1 to 5 per 10 cm) |
Intense vein networks (>5 per 10 cm) |