Geology 101

The Shawangunks

A recent article, in The New Yorker—“Studying Stones Can Rock Your World,” by Kathryn Schulz— reviewed Marcia Bjornerud‘s new book, Turning to Stone: Discovering the Subtle Wisdom of Rocks. It’s about the ages of the Earth, as revealed by its geology, but it’s also a memoir of self-discovery.

I’ve always been a fan of the earth sciences (much to the dism…