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- Kink banding in Laurel Formation of Rock Creek Shear Zone, Broad Branch, Washington, DC by Callan Bentley
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An exposure of highly foliated metasedimentary rock (metagraywacke) of the Laurel Formation in Broad Branch, part of Rock Creek Park, in northwest Washington, DC.
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- 271
- Explore Score
- 38
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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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- 222
- Explore Score
- 23
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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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- 223
- Explore Score
- 39
- "Cub Sandstone" (Uppermost Martinsburg Formation), near Catherine Furnace, Virginia by Callan Bentley
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Outcrop on the road in to Catherine Furnace.
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- 444
- Explore Score
- 26
- "Cub Sandstone" (Uppermost Martinsburg Formation), near Catherine Furnace, Virginia by Callan Bentley
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Outcrop on the road in to Catherine Furnace.
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- 435
- Explore Score
- 1
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A recumbent fold is exposed in the walls of an abandoned limestone quarry next to the Shenandoah River in Page County, Virginia.
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- 279
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- 1
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A recumbent fold is exposed in the walls of an abandoned limestone quarry next to the Shenandoah River in Page County, Virginia.
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- 526
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- 1
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This outcrop of the late Ordovician Martinsburg Formation is located on Route 644 in Shenandoah County, about 20 feet above the North Fork of the Shenandoah River. GigaPan Stitch seems to have had some issues putting it together, which is frustrating. Still, there's a lot to be seen. At this outcrop, bedding is o...
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- 359
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- 1
- Martinsburg Formation, Millner Road (near Deer Rapids Road), Shenandoah County, Virginia by Callan Bentley
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This outcrop of the late Ordovician Martinsburg Formation is located on Route 644 in Shenandoah County, about 60 feet above the North Fork of the Shenandoah River. At this outcrop, bedding is oriented 042°, 72° (right hand rule: it strikes N42°E, and dips 72° to the southeast). Cleavage is oriented 212°, 83° (...
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- 236
- Explore Score
- 29
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Also known as the Darton Fault (for Nelson Horatio Darton of the USGS, who pushed for its preservation "from the effects of weathering and the small boy") or the White House Fault (because it runs southeast to underneath the northeast corner of the White House grounds), this reverse fault offsets the nonconformity betw...
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- 715
- Explore Score
- 1

