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Now a ski slope, this pile of rock formed as a mass of ice and rock that flowed downhill. The surface topography is partly due to compression of the debris as it flowed (plus later human modification). This type of glacial/periglacial feature is thought to be an analog for features called debris aprons found at the b...
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Outcrop of sedimentary rocks near Kodachrome Basin State Park in southeastern Utah.
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Part of the rock formation called Devil's Oven, at Devils Hopyard State Park. This particular set of rocks has undergone differential weathering - some parts of the rock weather faster than others - which has left caves in places. Local folklore has it that during the American Revolution, these caves served as hiding...
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View from the end of the orange blazed trail at Devils Hopyard, overlooking the north/south valley that contains Eightmile River. The u-shape of the valley (fuzzy trees at the left of the image) suggest a valley that's been widened and shaped by glaciers (see the discussion of the geology at the partk webpage c
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Part of the northern part of Devils Hopyard State Park: Eightmile River falls here over schist and gneiss. Weathering has formed circular "potholes" in the rock helps lend the name to the park (local legend is that the devil's tail made the holes).
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The off/on ramp for Route 6 at Route 32 in Willimantic, CT exposes some gneiss cliffs...
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Just a few yards up the road from www.gigapan.org/gigapans/47766/ ... Hand sample pan: gigapan.org/gigapans/72884/ Thin section: gigapan.org/gigapans/72751/
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Part of the largest natural sand dune in the eastern United States - and a state park (used for sightseeing, kite flying, hang gliding, etc.) The "haziness" along the top of the sand surface is moving sand - the wind was pretty strong and constant that day. The water visible in the background is Roanoke Sound.
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Gneiss / pegmatite ledges form pools along the Natchaug River in northeastern Connecticut. We didn't hike the entire way back to the swimming hole known as Diana's Pool (this is along the hike) - the outcrop here was too photogenic (and we had other sites to visit!)
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Case Quarry is an old beryl mine (some very nice blue beryls were collected here) that is now a popular mineral collecting spot. This outcrop is the contact between the beryl-bearing pegmatite and the gneiss it intruded.
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