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18 March 2010
Transect Trip 18: Judy Gap
Fault-duplicated double section of the (Silurian aged) erosion-resistant Tuscarora Sandstone:
Transect Trip 15: penultimate plume
Nice one! … In spite of the highway department graffiti… Swiss Army Knife for scale!
Transect Trip 14: ripple marks
Where are some ripple marks in the Hampshire Formation. Cell phone service is a lot more localized here in West Virginia, so we’ll see how many posts I manage today…
17 March 2010
Live geoblogging: assessment
What do you think, folks? Do you like seeing field photos as I take them? Should I continue the Transect Trip instant photoblog series tomorrow as we traverse the Valley & Ridge?
Transect Trip 13: a better plume!
Okay… That last plumose structure was nothing compared to this beauty…
Transect Trip 12: plume du jour
Spectacular plumose structure on rusty joint surface Weverton Formation:
Transect Trip 11: bedding/cleavage
Bedding and cleavage intersect in the Weverton Fm. Bedding = Cambrian Cleavage = late Paleozoic (Alleghanian)
Transect Trip 10: en echelon tension gashes
Gorgeous back-rotated quartz-filled tension gashes in the Antietam Fm. Sinistral sense of shear:
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.