Structural geology: macro close-up of fault surface slickenlines
Close-up view of a slickenlined fault surface in a rock sample (of Marron Fm. volcanic rock from south-central British Columbia). Scale bar at bottom is in cm (black) and mm (lines) divisions. These fine (sub-mm width) slickenlines are groove-type striations, the products of frictional grinding along this fault surface back in the Eocene (ca. 50 million years ago).
Copyright J.R. Devaney
Structural geology: macro close-up of fault surface slickenlines
Close-up view of a slickenlined fault surface in a rock sample (of Marron Fm. volcanic rock from south-central British Columbia). Scale bar at bottom is in cm (black) and mm (lines) divisions. These fine (sub-mm width) slickenlines are groove-type striations, the products of frictional grinding along this fault surface back in the Eocene (ca. 50 million years ago).
Copyright J.R. Devaney