Old Red Sandstone cliffs, Whiting Ness, Arbroath, Scotland

Uploaded as a clue to another GWUK photo

These cliffs are of 'Old Red Sandstone'. There are two units in the cliff - the upper, coarse, pebbly sandstone is of Upper Devonian age, and rests unconformably on finer-grained sandstone of Lower Devonian age. The Middle Devonian is missing and is represented by the irregular junction (an angular unconformity) between the two units. The Lower Devonian sandstone was deposited first, then uplifted, tilted and eroded during the Middle Devonian, before the upper unit was deposited in the Upper Devonian times.

Scanned from Kodachrome 64 transparency film, taken with a Zenit 'E'.

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