NM4267 : Intrusion Breccia

taken 4 years ago, near to Portuairk, Highland, Great Britain

Intrusion Breccia
Intrusion Breccia
This jumbled-looking rock was formed when two different types of magma were intruded at the same time. They did not mix completely, so the result is these darker blobs of quartz-dolerite surrounded by net-veining of paler granophyric microgranite. It is easiest to see at the foot of the outcrop where the sea has kept it free of lichen and discolouration. Walking stick for scale.
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NM4267, 22 images   (more nearby )
Photographer
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Date Taken
Saturday, 14 September, 2013   (more nearby)
Submitted
Tuesday, 17 September, 2013
Geographical Context
Coastal  Geological interest 
Subject Location
OSGB36: geotagged! NM 4259 6755 [10m precision]
WGS84: 56:43.7022N 6:12.5848W
Camera Location
OSGB36: geotagged! NM 4258 6755
View Direction
EAST (about 90 degrees)
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