SH3963 : Textbook geology

taken 1 year ago, 4 km from Niwbwrch, Isle of Anglesey/Sir Ynys Mon, Great Britain

Textbook geology
Textbook geology
The rocky outcrops between the 'mainland' and Llanddwyn Island are famous for the exposures of pillow lavas, so called because of their shape. These represent the type of lava that is extruded on the ocean floor when plates split apart and molten lava spills out into the ocean to rapidly cool, only for another 'blob' of lava to pile on top of it. Some of the spaces between the 'pillows' are filled with dark red jasper, quartz and calcite.
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SH3963, 85 images   (more nearby )
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Date Taken
Monday, 3 July, 2017   (more nearby)
Tuesday, 11 July, 2017
Geographical Context
Coastal  Geological interest  Islands  Estuary, Marine  Rocks, Scree, Cliffs 
Subject Location
OSGB36: geotagged! SH 3913 6346 [10m precision]
WGS84: 53:8.6358N 4:24.4010W
Camera Location
OSGB36: geotagged! SH 3911 6345
View Direction
Northeast (about 45 degrees)
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Image Type (about): close look 
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