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Alum Bay
Alum Bay is a bay near the westernmost point of the Isle of Wight, England, within close sight of the Needles rock formation. Of geological interest and a tourist attraction, the bay is noted for its multi-coloured sand cliffs.
==Geology==
Alum Bay is the location of a classic sequence of upper Paleocene and Eocene beds of soft sands and clays, separated by an unconformity from the underlying Cretaceous Chalk Formation that forms the adjoining headland of West High Down. Due to geological folding of the Alpine orogeny, the strata in the main section of the bay are near vertical, with younger rocks with progressively lower dips to the west. The sands are coloured due to oxidised iron compounds formed under different conditions.〔West, I.M. and Helsby, R. 2007. (Alum Bay: Geology of the Isle of Wight ). Internet site: www.soton.ac.uk/~imw/Alum-Bay.htm. School of Ocean and Earth Sciences, National Oceanography Centre, Southampton University, UK. Version: 6 February 2007, retrieved 3 August 2008〕
Alum Bay Chine begins as a small wooded valley descending eastward from the junction of the B3322 and the road to Headon Hall. It soon broadens into the clay ravine through which the path and chairlift from Needles Park descend to the beach.
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