|Glacial grooves and striations, field sandal for scale.|
Saturday, July 20, 2013
Evelyn Mervine at Georneys is holding another Accretionary Wedge carnival (two in a row!), this time it's AW #58: Signs! I was first thinking of some geographic signs along the lines of her original signposts meme, and realized the ones I was thinking of consist of license plates rather than mileage signposts, and that all the ones I have are probably non-digital and currently a bit hard to reach (nevertheless will try to post some when I'm not quite so busy). Instead, I dug up a sign from a trip to Crater Lake a few years back.
Either way, if one persists past the sign in true geological fashion, one will find a great exposure of glacially striated and grooved volcanic rock. Read a little more about the glacial history of Crater Lake here.