18 May 2011
Some cool rocks from DGMR’s rock garden
Posted by Callan Bentley
Okay… I feel like it’s time to get away from the crazies and back to the rocks.
Remember the gigapan I showed of the Virginia DGMR rock garden? Here are a few more shots of that fine display, emphasizing a few close-ups of exemplary Virginia rocks.
Slate, showing a decent plumose structure:
Crystal fiber lineations (slickensides) of epidote, with “steps” facing the photographer (showing motion on the opposite side of the block).
Rhythmic layering in the lower Konnarock Formation, showing graded bedding:
A zoom-in on the previous image, showing the best graded bed there in the previous image:
Ahhh… rocks. So simple, so lacking in guile and baloney. I like rocks.
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.