3 April 2012
Posted by Callan Bentley
One more structure from the Castner Marble. This one is clearly tectonically-induced:
Top to the left! (East over west)
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.
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Son of a gun! I just noticed that I didn’t include a sense of scale here – that’s because it was up above, and unsafe to reach. The length of the short limb of the fold (width of the kink band) is between 2 and 4 inches.
I think I’ve been here … is this on a roadcut in the Franklin Mts just above El Paso?
Yes indeed. On the east side of the range, exposed on the north side of the road.
[…] back to my West Texas field trip now… remember the Castner Marble that we looked at earlier this week? Well, that very same marble is intruded by the Red Bluff Granite a bit further […]