Burthallan Cliff is to the west of Clodgy Point .
Pillow Lavas are exposed here surrounded by Slates.
The Lavas and Sediments are close to the Granite Contact (Lands End Granite) .
The Lavas have been metamorphosed into a rock known locally as Greenstone.
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Burthallan Cliff is to the west of Clodgy Point / St Ives in Gallery 16
Ref: 4560
Date: 12/03/2017
Location: SW 5043 4130