9 December 2016
Posted by Callan Bentley
Today’s Friday fold is one of those lovely gems that weather out in three dimensions. I spent a few quality moments with it this summer on the north side of Machir Bay, Islay, Scotland.
Lovely! Give it a little twist to the right, and it looks like this:
The fold overprints foliation or bedding in lightly metamorphosed metasedimentary rock of the Colonsay Group (Neoproterozoic).
Happy Friday!
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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