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 . SHARP OOLITES OF NORTHAMPTONSHIRE this are three beds of the Great Oolite series having maximum thickness of feet the lowest consisting of clay having persistent Fig Diagram of General Section slioiving the 'position of the Inferior Oolite Limestone and Divisions