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11 October 2013

Friday fold: below the Dorado Thrust

Here’s a scene from last summer’s Regional Field Geology of the Northern Rockies course… students examining and sketching some tight folds in Cretaceous strata of the Western Interior Seaway, crumpled beneath the Dorado Thrust (a more southerly equivalent of the infamous Lewis Thrust to the north)… I’ve featured this site before, in a previous Friday fold. Photo courtesy of Tom Biggs, University of Virginia.


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