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 . FORBES FOLIATION OF ROCKS sideration as being in some cases the agent in causing as well as modifying foliated structure Whatever may he the cause of the arrangement of foliation in cer tain directions believe that most geologists agree in supposing that fohation