Tuesday, 18 September 2007

Redcar Rocks



Aerial Photography

The rocks exposed at low tide are listed by the nature conservancy trust as a site of special scientific interest, notable because this section of the lower lias isn't exposed anywhere else along the Cleveland or Yorkshire coastline and it contains two characteristic fossil ammonites. The rocks were formed approximately 190 million years ago and are formed of calcareous shales. The rocks are also important feedings grounds for birds as the Knot, Turnstone, Sanderling, Purple Sandpiper, particularly during the winter. Larger rocks, too large to be moved very often by waves provide many animals with either a temporary or permanent home. Fish and crabs shelter here while the tide is out and the underside may be covered with a colourful array of sponges and sea-squirts, especially under those rocks nearer the low tide limit where they are only exposed for a short time each tide. This is also a good place to look for some of the small but beautiful sea-slugs that come ashore in the spring. The edge of the rocks are fringed with a thick forest of kelp. This is only exposed a few times a year on extremely low tides, but it is a fascinating place to explore as many animals shelter beneath the tough, leathery fronds.

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