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17 March 2010
Transect Trip 4: Protomylonite
Multiple anastomosing high strain zones cut through the Blue Ridge basement complex during Paleozoic mountain-building. Ar/Ar cooling ages on muscovite here are 320-340 Ma.
Transect Trip 3: Fresh charnockite
Charnockites are orthopyroxene-bearing granitoids, common in the core of the Blue Ridge Anticlinorium:
Transect Trip 1: map talk
Live geoblogging my post-NE/SE GSA field trip: Bill Burton and Chuck Bailey prep the group with a discussion of map patterns in the Blue Ridge…
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.