Sunday, 1 July 2012
Glacial Erratics in Bournville
These, my friends, are glacial erratics.
Glacial erratics are boulders that differ from the local lithology, and that have been deposited by glacial activity. Why is this relevant? This photo was taken on Bournville Lane, just up the road from the Railway Station, opposite part of the Cadbury factory. The railway bridge is down the road to the left.
These boulders were transported by the glaciers of the last age, and it is thought they are from the Arenig region of Wales. The boulders were dumped all over South Brum as the ice melted and retreated. The boulder in the pound in Old Northfield is also a glacial erratic, and there are others dotted around.
The geo-geek inside of me is very happy about this ;)