Polished stone: folded layering in metamorphic rock

Field of view is about 0.5 metre wide. The dark streaky layers are the limbs of tight V-shaped folds, with a smaller kink-like fold at lower right (it extends diagonally up to the left). The streakiness of the thinnest layers is probably a result of layer-parallel shearing and transposition ('sliding') along the foliation.

 

C. J.R. Devaney

Done