“The Strange Rubbing Boulders of the Atacama

ScienceDaily (Nov. 15, 2011) — A geologist’s sharp eyes and upset stomach has led to the discovery, and almost too-close encounter, with an otherworldly geological process operating in a remote corner of northern Chile’s Atacama Desert.”

More at !http://www.sciencedaily.com/releases/2011/10/111011112457.htm

Physical erosion of boulders by seismic action.

Nice…

that’s kewl, thanks for showing me.

“Analyses of the boulder top surfaces suggest that they have been there one to two million years. That age, combined with the fact that seismic activity in the area generates a quake like that Quade witnessed on the average of once every four months, suggests that the average boulder has experienced 50,000 to 100,000 hours of bumping and grinding while waiting for that nonexistent train.”

Incredible. All shades of awesome right there.

Thanks for the link Geoff.

adds Atacama to bucket list