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Achfary, Sutherland
September - October 2000. Tripping around the northwest coast of Scotland with Mum before she went back to New Zealand. Soaking in the amazing scenery and checking out some geology (geek warning!) along the way.
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| First shot of the roll, just to make sure it works... |
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| Stac Pollaidh (pronounced "Stack Polly"), a glacial remnant of Torridonian Sandstone, 1500 million year old sedimentary rock that overlies even older basement rock, Lewisian Gneiss, in the foreground. |
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| Suilven (pronounced "Soolvin"), another glacial remnant of the same Torridonian Sandstone. Here you can see the horizontal layers in the rock. |
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| Durness beach. Granodiorite dykes in Lewisian Gneiss. This is where molten rock has forced itself through weaknesses in the rock. See where the rock has been eroded along the plane of the intrusion. Shoe to scale! |
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| Arkle, opposite Achfary. Sitting on top of the 2800 million year old Lewisian Gneiss, Arkle is also made of Torridonian Sandstone, but is topped with a cap of white Cambrian age Basal Quartzite (see diagram below). This quartzite, being extremely hard and resistant to erosion, has protected underlying layers as well. |
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