Our Coast, Our Sea - The Dikes and Sills of Dunstanburgh Castle

When: 5 July 2010 at 2:00 pm

Where: Craster

Meeting Place: The car park just south of the harbour at Craster.
Grid reference: NU 159 198
Date & Time: 5th July 14:00 – 16:00
Health and safety: Some scrambling on rocks at low tide which will be slippery. Circa 4km of walking. If wet/windy will need warm clothes.

The Whin Sill is a hugely important feature in this area of Northumberland, intruded and hidden underground at the end of the Carboniferous age. We will have an opportunity to look at the part of the Whin Sill which forms the crags on which Dunstanburgh Castle sits. We will follow these crags to the south looking at different ways in which the molten rock was intruded and ask why ? We will also look at some of the rocks into which the magma was intruded including a marine lime-stone rich in fossils, maybe including some trilobite fragments.

Further information: Tom Cadwallender, 01665 511203