Disturbed Chalk at Langtoft Quarry, East Yorkshire.

Originally uploaded for the Guesswhere UK group.

This is a view of the old and rather overgrown Chalk quarry just south of Langtoft, in East Yorkshire.

Normally the Chalk in East Yorkshire is horizontally bedded or nearly so. But at this quarry the locally steep dips (> 50°) are due to the east-west trending Howardian Hills-Flamborough Fault belt. This is magnificently exposed on the coast at Selwicks Bay, near Flamborough Head:

In the Flamborough area, these E-W belts of disturbed Chalk have been recognised since 1829 during the early years of geological surveying in the UK.