Rocks and Minerals: A Town Centre Trail
Date: Thursday 20th June 2013
Time: 07:00 PM to 08:30 PM
Location : Halifax Town Centre, Meet at 19:00 outside the West Gate of Piece Hall, Westgate, Halifax, HX1 1RE.
Cost : Free
Rocks and Minerals: a Town Centre Trail. Halifax Town Centre.
19.00-20.30 Thursday 20th June. Meet at 19.00 outside the West gate of Piece Hall, Westgate, Halifax, HX1 1RE. Street parking in Horton Street free after 18:00.
Lead by Alison Tymon, West Yorkshire Geology Trust
A free event with applications to teaching in KS 2,3 & 4 that is open to ASE and Non ASE members
The walk will include looking at the excellent quality local sandstones used in the construction of buildings such as the Piece Hall and Halifax Town Hall. Bring a magnifying glass to look at the sand grains in detail. Some high status shops and offices have used slabs of igneous and metamorphic rocks to protect from the weather and to impress their customers, so we will be seeing granites and peridotite rocks from Scotland and Italy. The old streets in Halifax had sandstone and granite setts, which have been relaid in the modern shopping area and near the railway station. Most of the town is paved with Elland Flags, the best stone for pavements available in England, and known to the rest of the country as York Stone paving. Some interesting features, which show the river environment in which these rocks were deposited as sediments, can be seen on the flags. Finally, we can't miss the Italian travertine-fronted building, which now houses MacDonalds but used to be an important Victorian office building.
Building stones can be used to show how much weathering takes place on rocks, particularly using headstones in local cemeteries and graveyards which are dated. A walk around Halifax town centre enables us to assess the resistance to weathering of some building materials.
Please be prepared for Pennine weather.
To book your place, please contact Colin DuQueno by email firstname.lastname@example.org or telephone 01484 530917, by 7th June.