Carn Llidi, Pembrokeshire
Carn Llidi summit
Carn Llidi from Coetan Arthur
Warm rocks and Carn Llidi
Whitesands Bay from Carn Llidi
Coetan Arthur and Carn Llidi
Coetan Arthur and boulder field
Coetan Arthur
Cliff Fort rampart and ditch, St David's Head
Point St John, Whitesands Bay
Trwynhwrddyn and Whitesands Bay
Trwynhwrddyn
Incoming Squall
Squall over the Bishops and Clerks
Strumble Head pillow lavas 2
Strumble Head pillow lavas 3
Strumble Head pillow lavas 4
Strumble Head, Pembrokeshire
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1/40 • f/4.5 • 17.0 mm • ISO 100 •
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Pillow lavas on Strumble Head, Pembrokeshire
This is a view of the Ordovician age pillow lavas on Strumble Head, Pembrokeshire.
Pillow lavas are formed when molten basalt lava is erupted onto the sea floor. If the water is deep enough, the hydrostatic pressure stops the lava from exploding the sea water into steam. Instead, the liquid rock and liquid water co-exist together in an uneasy truce. The lava is extruded like toothpaste into successive oval globules, resembling pillows or sacks, hence the name. See the video clip here:
oceanexplorer.noaa.gov/explorations/04fire/background/vol...
Pillow lavas are formed when molten basalt lava is erupted onto the sea floor. If the water is deep enough, the hydrostatic pressure stops the lava from exploding the sea water into steam. Instead, the liquid rock and liquid water co-exist together in an uneasy truce. The lava is extruded like toothpaste into successive oval globules, resembling pillows or sacks, hence the name. See the video clip here:
oceanexplorer.noaa.gov/explorations/04fire/background/vol...
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