9 March 2018
Arizona State University’s Steve Semken is the source of this week’s guest Friday fold:
The fold here is an insider’s view of the Raplee Monocline, as viewed from a raft on the San Juan River in Utah. Steve describes it as
Beloved of geology textbook publishers everywhere.
Though monoclines out west are usually huge features (and thus hard to fit in a single photo unless you’re in an airplane), this is a nice image because it clearly shows the strata at different angles of dip on different portions of the structure. Thanks for sharing, Steve!