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You are browsing the archive for 2011 July 22.

22 July 2011

Friday fold: Pete’s purty pet

That’s my Rockies co-instructor Pete Berquist, in the regulation uniform of an orange down vest, holding a subtly-folded slab of sandstone (it’s a very slight “S”), rescued from amid the shaley wastes of the Blackleaf Formation, the Cretaceous aged sedimentary rocks beneath the Lewis Thrust on the Blackfoot Reservation, just east of Glacier National Park. It’s cool to go check out these strata of the Western Interior Seaway, and see …

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