Thursday, January 12, 2023

The Structure of a Coastline

Yesterday's fine day turned into a still, frosty night with the temperature down to zero so, by dawn, all the puddles had turned to ice. My walk, only possible because I wear boots armed with studs, started well, spotting two dolphins just offshore, but they disappeared before I could get a picture of them. It's just past spring tides at the moment so plenty of the Dunrobin beach is exposed: here, the structure jutting out into the sea is an old slipway, probably dating back to the early 19th century, whereas....

....the rock-formed promontory here is absolutely natural. It's the preferred daytime roosting point or our resident flock of around a dozen cormorants.

The structures poking out into the sea here are beds of Jurassic sandstone separated by shaley-clays which are soft and easily eroded. They contain ammonites but the beach is part of a Site of Special Scientific Interest so I have refrained from investigating the clays which contain the fossils.

By eleven the promised rain was moving in but in the lingering warmth of the sun I sat for a few minutes on the bench above the one section of this shore which is sand, where a small flock of redshanks were probing for worms.

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