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:
Classickondo. Made the image based upon old data in the cited article from Fair use applies produced the figureit is drawing of old resistivity measurements from for which there is no online image and fair use would apply in any case History of Image Classickondo Bkell Talk contribs no summary from Bkell Talk contribs no badJPEG