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The cliff face consists of granitic gneisses cut by basaltic dikes. It is elevated above the surrounding area by a fault near the edge of the Adirondack Mountains.
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- 17
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Garnets weathering out of a boulder of gneiss (Tolland County, CT). Tried to get nice morning light on the vein containing the reddish garnets - was hard with the trees, though... the leaves were almost as bad as the clouds!
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The Commonwealth of Virginia's Department of Geology and Mineral Resources has their offices in Charlottesville, Virginia. Outside their building is an exceptional collection of large rock samples from across the state. Samples include igneous, sedimentary, and metamorphic rocks from all five physiographic provinces, a...
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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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This macroGigaPan was shot in the field at the very accessible roadcut of Hague Gneiss seen in this wider view: Geologically this is a textbook example of a kinzigite - a type of metasedimentary gneiss rich in biotite and garnet. There are also some very large augen cored by feldspar near the lower right portion of ...
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This roadcut, near Alexandria Bay, New York, exposes the "Great Unconformity" between the basal Cambrian Potsdam Sandstone and the underlying Precambrian gneisses of the Frontenac Arch. The unconformity is near the base of the roadcut and can be seen to preserve some evidence of paleotopography on the Cambri...
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When I set this one up I was aiming to get a nice closeup of a shear zone. What I ended up with was a test of the Gigapan unit under extreme weather conditions. You can almost pick out the individual moment where the snow flurries suddenly turned into a whiteout. In hindsight, I'm amazed that the thing stitched toge...
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This GigaPan illustrates an exposure of the basal Cambrian Potsdam Sandstone nonconformably overlying Precambrian gneisses at the eastern edge of the Adirondack Mts uplift. My field assistants took time out from exploring this remarkable contact to pose for the GigaPan. Berti is standing directly on the unconformity ...
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From close below the Tetons, this panorama offers a detailed look at the geology of the range front. The Teton Glacier is best seen from this angle and there are a couple of mafic dikes that cut the Archean igneous and metamorphic rocks that make up the bulk of the Teton Range. Oh yeah, a few tourists and cyclists in...
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I had originally hoped to get into the Barton Garnet Mine to shoot a macroGigaPan of the famous Gore Mountain garnets, but unfortunately I was a little too early in the season. The garnets at the locality featured here are from a now-abandoned garnet mine in the area that is currently located on state lands. The garn...
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