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8 November 2012
Neoacadian Inner Piedmont trip, part I: the Walker Top
Check out these lovely images (mouth-watering, even) of the protomylonitic and mylonitic Walker Top Granite of North Carolina’s Inner Piedmont. There’s also some views of the field trip participants and scenery.
5 November 2012
Monday macrobug: Praying mantis
Photographed this one before the leaves changed – a big gravid female. Look at the size of that swollen abdomen – much like my wife was on that same day!
4 November 2012
Animated GIF of the Walker Top Granite
Here’s one of the cool rocks I saw on my pre-GSA-Charlotte field trip to the Neoacadian Inner Piedmont field trip: the protomylonitic Walker Top Granite (~366 Ma crystallization), which was deformed as the terrane it was intruded into got shoved up and to the west (and perhaps the southwest!). Here’s an animated GIF I made to show off one particularly striking bit of float: The rock is dominated by big …
2 November 2012
Friday fold: dinner plate
The Friday fold appears on a flat slab along Maryland’s Billy Goat Trail.
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.