Image: AntrimShaleStratigraphicChart
AntrimShaleStratigraphicChart.JPG (366 × 570 pixels, file size: 50 KB, MIME type: image/jpeg)
Description: Chart showing stratigraphic position of the Antrim Shale in the Michigan Basin, USA.
Title: AntrimShaleStratigraphicChart
Credit: http://pubs.usgs.gov/of/1996/of96-023/ USGS Open-File Report 96-23
Author: Robert T. Ryder
Permission: US federal government
Usage Terms: Public domain
License: PD
Attribution Required?: No
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