File:Baltic Oil Shale Basin.png

Summary
https://commons.wikimedia.org/wiki/File:Baltic_Oil_Shale_Basin.png https://commons.wikimedia.org/wiki/File:Baltic_Oil_Shale_Basin.png Description English: Map of the Baltic Oil Shale Basin in northern Estonia and Russia Date	18 April 2014, 13:56:03 Source	http://pubs.usgs.gov/sir/2005/5294/pdf/sir5294_508.pdf Author	John R. Dyni for the U.S. Geological Survey (Adapted from Kattai and Lokk (1998, their fig. 1))