Some cool upload photo images:
Disturbed Chalk at Langtoft Quarry, East Yorkshire.
Image by Earthwatcher
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:
www.flickr.com/photos/earthwatcher/3742459918/
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.
See where this picture was taken. [?]
Section of the old A625 road on the Mam Tor landslip, Derbyshire
Image by Earthwatcher
Originally uploaded for the Guesswhere UK group.
This is a section of the old A625 Sheffield to Chapel-en-le-Frith road at the foot of Mam Tor in the Peak District. The road was built across an extensive active landslip area and was in constant need of repair. The photo shows the repetitive layers of successive repairs made to this section. The road was finally closed in 1979.
The landslip first formed about 3000 years BP, on an oversteepened slope left after Devensian periglacial period. There is an 80 m high back scar in formed in the Mam Tor Beds.
The toe of the landslip is still active today, moving at up to 2 metres per year in places.
See where this picture was taken. [?]
