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Friday fold: Sliced BIF from Joburg

September 12, 2024October 18, 2013 by Callan Bentley

The Friday fold is a trio of hand samples of folded banded iron formation from South Africa. Collected in 2012 as float from the “contorted bed” outcrop in downtown Johannesburg, these samples are only now being cut and polished in the lab at NOVA.

Categories africa, archean, BIF, folds, Friday Fold, south africa Tags fea, featured Leave a comment

Dinosaur footprints in west Texas

September 12, 2024February 6, 2013 by Callan Bentley

Everything’s bigger in Texas, even the footprints…

Categories chemistry, cretaceous, dinosaurs, joints, sediment, texas, trace fossils Tags fea Leave a comment

About Callan

A headshot of Callan Bentley. 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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