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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Basal Triassic Conglomerate

The Permian-Triassic boundary in central and southern Utah is marked with Conglomerates.  Some are probably Permian, those deep in paleo channels, and some are earliest Triassic, those mixed in with the sand and silt at the base of the Black Dragon Formation red beds. In the East, there is a nice outcrop in Black Dragon Canyon coming off the San Rafael Swell. Close-up of conglomerate in

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