Crummack Dale: The Craven Inlier
Field Excursion
22nd June 2024
by Peter del Strother
Please note that this trip was originally advertised as taking place on July 17th.
Timings for the day to be confirmed.
Non-members welcome
Crummack Dale exposes one of the Craven inliers. We will see Carboniferous limestone and what is probably the most spectacular limestone pavement in northern England, a Silurian mudstone with Liesegang rings, a well exposed unconformity at Austwick Beck Head where a Carboniferous lime mudstone/siliciclastic conglomerate overlies bedded and cleaved Ordovician basement with enigmatic jointing, Silurian turbidites with rip-up clasts, cleavage and cleavage refraction, an unconformity at Nappa Scars with a difficult to interpret boulder bed and the Norber Erratics. All this is set in a glaciated landscape with a well exposed syncline in Silurian rocks seen in the sides of the valley.
This excursion involves a 12km walk, registrants will require access to a car.
Registration closes 17th June 23:30