Keywords: GasDepositDiagram2.svg en English language schematic diagram of shale gas geology with aquifer added 2012-03-13 Slightly altered version of http //commons wikimedia org/wiki/File GasDepositDiagram svg US Government modified by Plazak and Marek M PD-USGov Original upload log This image is a derivative work of the following images File GasDepositDiagram jpg licensed with PD-USGov 2010-03-14T10 40 17Z Jo Weber 718x473 49984 Bytes <nowiki> Schematic cross-section of the subsurface illustrating types of natural gas deposits Transferred from http //en wikipedia org en wikipedia Original text US Energy Information A</nowiki> Uploaded with derivativeFX Shale gas Uploaded with UploadWizard |