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An annotations-only version of an outcrop showing numerous examples of primary sedimentary structures.
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- 36
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An annotated shot of an outcrop showing numerous examples of primary sedimentary structures.
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- 80
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- 27
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An unannotated shot of an outcrop showing numerous examples of primary sedimentary structures.
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- 144
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- 24
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Historic mill at the water gap where Broad Run flows across Bull Run Mountain at the eastern Blue Ridge / Culpeper Basin boundary.
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Geologic map overlay is the 1974 Geologic Map of the Ashby Gap quadrangle, by T.M. Gathright, Jr. and P.G. Nystrom, Jr. You can buy a copy here: www.dmme.virginia.gov/commerce/ProductDetails.aspx?productID=2184
Or you can download a PDF of it here: www.dmme.virginia.gov/commercedocs/RI_36.pdf
The LIDAR...-
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LIDAR imagery provided by Dan Doctor, USGS Reston. This map view shows fine-scale topographic variation along the western Blue Ridge front, where the Blue Ridge geologic / physiographic province meets the easternmost Valley & Ridge province (Shenandoah Valley). The most striking feature is the beautiful expressio...
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- 454
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Slightly stretched grains in Antietam Formation quartz sandstone, from western Blue Ridge. Depositional age is Cambrian, deformation is related to the late Paleozoic Alleghanian Orogeny. Image made as part of the MAGIC project (Mid-Atlantic Geo-Imagery Collection) using Northern Virginia Community College's gigamacr...
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