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You are browsing the archive for 2011 October 21.

21 October 2011

Friday fold: Van Hise Rock

Wednesday, Alton Dooley put up a post about his visit to Van Hise Rock in Wisconsin. He included this photo of the famous rock with its upright (pretty much vertical) layers: Go read his description of the lithology for more detail, but essentially what you see here is an Oreo-like sandwich: pink quartzite (meta-sandstone) on each side of a central layer of gray phyllite (meta-mudstone). The phyllite displays a strong …

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