West Cornwall - Geology
Pillow Lava / Carrick Du (S16)
Fine exposures of Pillow Lava , can be seen at Carrick Du - (Man's Head) to the East of Clodgy Point.
The Pillow Lava is volcanic basaltic rock which erupted and cooled under water (370mya).
Later (290mya) the volcanic basaltic rock near the granite intrusion was
changed by heat /pressure into a hard dark rock , known locally as Greenstone
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Location - West of Porthmeor Beach - St Ives in Gallery 16
Ref: 1494
Date: 20/05/2015
Location: SW 5108.4099