NJ5666 : Dalradian-Devonian Unconformity

taken 3 years ago, near to Sandend, Aberdeenshire, Great Britain

Dalradian-Devonian Unconformity
Dalradian-Devonian Unconformity
When a much younger rock lies directly on top of a much older rock, the contact is termed an unconformity. Here, the limestones on the right were deformed and metamorphosed deep down in the crust of the Earth some 600 million years ago, then uplifted by tectonic movements to the surface and exposed by erosion, then covered by sandstones in Devonian times, about 400 million years ago. So that crevice up the middle of this image represents a gap of 200 millions years in the history of the Earth.
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NJ5666, 27 images   (more nearby )
Photographer
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Date Taken
Saturday, 13 September, 2014   (more nearby)
Submitted
Sunday, 21 September, 2014
Geographical Context
Coastal  Geological interest  Rocks, Scree, Cliffs 
Subject Location
OSGB36: geotagged! NJ 5622 6615 [10m precision]
WGS84: 57:40.9834N 2:44.1502W
Camera Location
OSGB36: geotagged! NJ 5622 6615
View Direction
Southeast (about 135 degrees)
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