This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
The Quarterly journal of the Geological Society of London . PROCEEDINGS OF THE GEOLOGICAL SOCIETY Feb After these remarks we are at once prepared to compare the rocks developed in the great transverse sections of the Welsh and Cumbrian mountains The lower Cambrian groups Bangor and Festiniog Nos and tabular view are amply