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- Folded contact between New Market Formation (lower) and Lincolnshire Formation (upper), Staunton, Virginia by Callan Bentley
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A lovely exposure (though rather harshly lit) of the contact between two Cambro-Ordovician limestones in the Shenandoah Valley. Geologic map of the site is here: ngmdb.usgs.gov/ngm-bin/pdp/zui_viewer.pl?id=14868
The same contact can be seen in the vicinity of Strasburg, Virginia, here:
www.gigapan.com/gi...-
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- 172
- Explore Score
- 41
- 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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- 231
- Explore Score
- 36
- 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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- 177
- Explore Score
- 39
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Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.
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- 142
- Explore Score
- 33
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Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.
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- 0
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- Total Views
- 186
- Explore Score
- 31
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Outcrop of the late-Ordovician-aged Martinsburg Formation (turbidites/flysch) shed off the Taconian Orogen to the east into the adjacent deep marine basin. The strata were later tilted and cleaved during Alleghanian mountain-building.
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- 0
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- Total Views
- 162
- Explore Score
- 36
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Cross-sectional view of folded Martinsburg Formation beds (XXX°, XX° right hand rule).
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- 1
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- 148
- Explore Score
- 25
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Cross-sectional view of folded Martinsburg Formation beds . On the left (south), the bedding is oriented 030°, 38° (right hand rule). On the right (north), it's oriented 245°, 30° (right hand rule).
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- 1
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- 168
- Explore Score
- 37
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Cross-sectional view of inclined Martinsburg Formation beds (020°, 62° right hand rule). Take a look and ask yourself: What's the structure doing here? :)
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- 1
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- 102
- Explore Score
- 28
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Cross-sectional view of subvertical Martinsburg Formation beds (220°, 80° right hand rule).
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- 1
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- 98
- Explore Score
- 25

