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Limestone reef, Derbyshire

Shelly limestone Image to left: shelly limestone

This limestone cliff shown at the base of this page is made up of the remains of corals, crinoids and shells that formed a reef within a tropical lagoon that covered much of the Peak District around 325 million years ago.

Thinner layers of limestone, formed as carbonate mud, surround and cover the hump-like reef structure that now forms a cliff above the river Derwent, and is popular
Limestone reef fossils

High Tor, Matlock Bath, Derbyshire

Derrick Clements,

Derrick Clements,

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