Geology - Pembrokeshire
En Echelon / 2
A close up of an en echelon vein at West Angle.
They appear as sets of short, parallel, lenses on the surface of a rock formed by tension
fractures that are subsequently filled by precipitation of a mineral,
calcite here (or typically quartz )
Ref: 11033
Date: 29/10/2012
Location: SM 8512.0340 .
