By: callanbentley
Image: Ron Schott
License: Creative Commons Attribution ⧉

Uploaded: 15 Jan 2020
Last Updated: 15 Jan 2020

699 megapixels
25,233 x 27,697 pixels
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Normal fault in the Fort Hays member of the Cretaceous Niobrara Formation, south of Stockton, Kansas. These chalk beds were originally deposited in the shallow Western Interior Seaway about 80 million years ago. The thick beds of the Fort Hays member are extensively bioturbated. Faulting is post-Cretaceous and pre-Quaternary.