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14 February 2011

Volcanic breccia in Sierra foothills?

A year and a half ago, on my way back to Modesto from Yosemite, I pulled over at the side of the road and found a piece of urbanite full of whoppers. But that curiosity wasn’t what caught my eye and made me pull over in the first place. Instead, what I noticed was this: It appears to be some kind of volcanic breccia, based on the relatively angular clasts …


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Dolostone ♥s shale

Originally posted in September 2010 as part of this missive on the Champlain Thrust Fault. Happy Valentine’s Day!


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