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:
Geology of Oxford and the valley of the Thames BHL. Geology of Oxford and the valley of the Thames by John Phillips Table of Contents biodiversitylibrary org title Phillips John Phillips John NOTINCOPYRIGHT Biodiversity Heritage Library Check categories October PDold Geology of Oxford and the valley of the Thames Images