Image: Ralston Mbr
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Description: Gypsum facies of the Ralston Creek Member of the Morrison Formation, Fremont County, Colorado. The Ralston Creek has yielded a radiometric date of 152.99 + 0.10 Ma, or Upper Jurassic.
Title: Ralston Mbr
Credit: Own work
Author: Carpenter, Kenneth
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes
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