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17 April 2015

Fault breccia in Beekmantown limestone

Here’s another sight at the Eocene dikes site in Bluegrass Valley, Virginia, mentioned yesterday: That’s a gorgeous fault breccia, emplaced parallel to bedding, and parallel to the felsic dike (which can be found a few feet to the west / right of these photos): It was very poorly lithified, shockingly crumbly to the touch, considering the big slab of rock downhill (to the right) of it. Here’s a link to …


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