1 February 2013
Friday fold: Mosaic Canyon Monster
Posted by Callan Bentley
While out in Death Valley with my Field Studies students last March, we encountered an extraordinary fold in Mosaic Canyon.
Check this thing out:
The rock is the Noonday Dolostone (“Noonday Dolomite” in mineralogically biased argot). It may be hard to make out what’s what there… So let me assist with a little annotation, tracing out the bedding:
Wild, eh? That’s an extraordinarily messed up rock. “Goopey” is the adjective that comes to mind to describe how this rock behaved during deformation.
And, being a human with a predilection for pareidolia, I can’t help but see a monstrous creature lurking in the wall:
When I take people up Mosaic Canyon to show them this formation, I always splash some water on it which really brings out the detail in the dolomite. When the more folded portions are wet, it looks like wood cut on a bias with the grain showing.