SH7478 : Rhyolite foundations

taken 8 years ago, near to Capelulo, Conwy, Great Britain

Rhyolite foundations
Rhyolite foundations
The high sea-wall forming the foundations of the old road around the Penmaenbach rises from rock outcrops at the high tide mark. The layered appearance suggests a sedimentary formation, but in fact it is all rhyolite. Closely-spaced, parallel jointing of the rock is caused by stress during its cooling and crystallisation from the magma, where it formed an intrusion beneath contemporary volcanoes.
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SH7478, 70 images   (more nearby )
Photographer
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Date Taken
Friday, 15 January, 2010   (more nearby)
Submitted
Friday, 15 January, 2010
Category
Rock outcrops   (more nearby)
Subject Location
OSGB36: geotagged! SH 749 785 [100m precision]
WGS84: 53:17.3365N 3:52.6258W
Camera Location
OSGB36: geotagged! SH 749 785
View Direction
West-northwest (about 292 degrees)
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Image classification(about): Geograph
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