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Gigapans

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  1. A lovely outcrop on a lovely spring day.

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      192
      Explore Score
      26

  2. Massanutten Sandstone, folded into an anticline. To view a sample of the Massanutten Sandstone in macro detail, try this: gigapan.com/gigapans/126687

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      224
      Explore Score
      23

  3. North side of Calvert Street, east side of the Duke Ellington Bridge over Rock Creek. An interesting example of weathering in the urban environment.

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      813
      Explore Score
      2

    • 220460-210x140

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      5
      Total Views
      1951
      Explore Score
      1

  5. Weathering pits called opferkessel form atop rock exposures due to chemical and physical weathering. They may superficially resemble potholes, but are not caused by vortices of swirling water "drilling" into the rock. The water trapped in the opferkessel may host small ecosystems with surprising organisms.

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      7
      Total Views
      3254
      Explore Score
      1

  6. Looking west at the extended "rock scramble" part of the trail up Old Rag Mountain in Shenandoah National Park, Virginia. At the far right in the distance, the summit of the mountain may be observed.

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      8
      Total Views
      3382
      Explore Score
      1

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        Size
        1.44 Gigapixels
        Added
        April 11, 2011
        Date Taken
        April 09, 2011
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  7. 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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      1
      Total Views
      831
      Explore Score
      1

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        Size
        0.50 Gigapixels
        Added
        June 02, 2010
        Date Taken
        June 02, 2010
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  8. This is the angle and the time of day to really see the rocks that give Yellowstone its name. The Yellowstone River has carved this dramatic canyon through a zone of hydrothermally altered and weakened post-caldera rhyolites. If you look closely, you can even find active hydrothermal vents (look for steam) down along...

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      1
      Total Views
      1740
      Explore Score
      1