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Zig-zags in sandstone, possibly formed by an earthquake shaking wet sand, leading to sand layers slumping
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Trying to see fossilised sand ripples
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Checking out erosion in a wall: stone reverts to sand
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Coal seam underlain by a white sandstone named seatearth; the latter has black rootlet marks from the forest that used to flourish above it
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Brownish sandstone marked with the remains of tubes dug by burrowing worms or other animals
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Unexpected rock monster
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Calvin decides that whatever is round the next headland is not worth seeing and makes for home.
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Round the next headland: volcanic plugs from ancient volcanoes.
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Geology dog
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Folded and tilted rock strata
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Sea stack
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Did we really leave the car on the other side of St Andrews?