BGS Geoheritage – images from the collections
Showing posts with label
quarry plug
.
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Showing posts with label
quarry plug
.
Show all posts
Tuesday, 19 March 2013
St. Paul's Quarry, Isle of Portland, Dorset.
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BGS image ID: P023964 St. Paul's Quarry, Isle of Portland, Dorset. Splitting a block with a technique called 'plug and feather...
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