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Hand-sample photo of what is known to be Lava Creek Tuff “unit 2”

Detailed Description

A hand-sample photo of what is known to be Lava Creek Tuff “unit 2.”  Small black scoria pieces are distinctive of this unit compared to the previously recognized Member A and Member B of the Lava Creek Tuff.  Photo by Ray Salazar (Montana State University) on August 16, 2021.

Sources/Usage

Public Domain.

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