EXPLORE THE GEOLOGY OF THE SALISBURY CATHEDRAL CLOSE
by Steve Hannath
A new guide on the building stones of Salisbury Cathedral Close: Price £2.00. Obtainable from Salisbury Museum, the Cathedral shop, Salisbury Information Centre and the author:
Wiltshire's landscape is inextricably bound up with the rocks beneath the surface. It is our aim to raise public awareness of Earth Sciences and draw peoples attention to the way the landscape, and the towns and villages within it, are influenced by the underlying geology.
In 2007 the group put up an information/interpretation board near the canal in Bradford on Avon and excavated a small area to reveal the geology, to show how the area would have looked 165 million years ago. The site is on the dip-slope of the Cotswold Hills, in the mid-Jurassic Forest Marble Formation. This rock formation, some 24 metres thick, consists of alternating limestones and clays. A particularly thick layer of clay, know as the Bradford Clay, occurs here above a Jurassic limestone sea-floor. A number of fossils, including sea lilies and brachiopods, can be found.
The site has been monitored and maintenance carried out since 2007 however it has now reached the point where it needs clearing once again. The clay walls of the pit have become quite overgrown and the clay has washed down into the hollows in the limestone floor.
If you want to help, please bring gloves, a trowel, spade, mattock, clippers/pruning shears, a pruning saw (just in case), garden fork, maybe a pickaxe to lever tough roots out and rugs to move waste soil. If you don't have all this equipment, there will be a selection on site for people to use.
If you have any queries concerning the event, please e-mail firstname.lastname@example.org
Saturday 7th October at 10.00 am. Dursley Walking Festival event:
GEOLOGY & SCENERY OF THE DURSLEY OUTLIERS
Duration/distance: 5 Hours 5 Miles
Booking not required - just turn up. Well-behaved dogs on a short lead are welcome