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15 March 2013

Friday fold: a recumbent anticline in an abandoned quarry

Yesterday, I spent a pleasant day in the field with John Singleton, the new structural geology professor at George Mason University. I was showing John a couple of sites I’ve used as field trip locations for the GMU structural geology class, and John was showing a couple of new sites to me – places he visited on last fall’s Virginia Geological Field Conference. I missed VGFC last fall, as I …


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Giant pencil cleavage in the Martinsburg Formation

Two giant “pencils” in the Martinsburg Formation: You can see smaller (more typically sized) “pencils” on the slope behind me. Photo by John Singleton, GMU.


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