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The Strange Rubbing Boulders of the Atacama
Geological Society of America ^
| October 11, 2011
| Unknown
Posted on 10/11/2011 3:03:04 PM PDT by decimon
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1
posted on
10/11/2011 3:03:07 PM PDT
by
decimon
To: decimon
That would be kind of cool to see in action.
2
posted on
10/11/2011 3:09:44 PM PDT
by
cripplecreek
(ALCS/NLCS playoff thread http://www.freerepublic.com/focus/f-chat/2789907/posts)
To: cripplecreek
Apparently, you have to have a case of Montezuma's Revenge, lay down under a truck, and wait for an earthquake.
I think I'll just take the guy's word for it. ;)
/johnny
To: decimon; Miss Marple; cpdiii; geologist; thackney
4
posted on
10/11/2011 3:12:49 PM PDT
by
CPT Clay
(Pick up your weapon and follow me.)
To: decimon
Remarkable. I wonder if the same thing can be found in CA with similar frequency of earthquakes?
5
posted on
10/11/2011 3:12:57 PM PDT
by
JimSEA
(The future ain't what it used to be.)
To: decimon
I thought this might end up being something like what happens at The Racetrack in Death Valley...
To: JimSEA
Yes, the sides of the heads of California’s lunatic legislator-rockheads have all been worn smooth. However, there is little danger of any brains leaking out.
7
posted on
10/11/2011 3:15:29 PM PDT
by
Hebrews 11:6
(Do you REALLY believe that (1) God is, and (2) God is good?)
To: who_would_fardels_bear
That is interesting. Any backstory on how that rock came to be there with that track?
/johnny
To: SunkenCiv
9
posted on
10/11/2011 3:18:00 PM PDT
by
decimon
To: decimon
"Quade said. "How do you erode a landscape that is rainless?"
Wind blown sand comes to mind. Note the ripples in the sand in the pics. His example pics also were mostly spaced apart rocks.
To: decimon
I remember when an earthquake hit my area a year or so ago. I didn’t feel any vibration, but heard a rumbling/roaring kind of sound which I knew had to be a quake (didn’t sound like anything else, for one thing), and it was. It was all the rocks rattling along their joint planes and other fractures.
To: JRandomFreeper
The best theory is that the dry lake bed becomes more slippery during wetter times and that the winds can then push the rocks along slowly but surely.
Many people have gone out there, some even living out there for short spells. I don't think anyone has actually seen a rock move, but I could be wrong about that.
To: decimon
To: who_would_fardels_bear
“The Racetrack in Death Valley...”
My first thought as well.
14
posted on
10/11/2011 3:49:15 PM PDT
by
beelzepug
("Blind obedience to arbitrary rules is a sign of mental illness")
To: JRandomFreeper
Read a different theory couple months back that frost/condensation was enough to freeze around the rock at night and cause “expansion” in the soil up to about an inch into the soil hence moving the rock (very, very) a little at a time. Still doesn’t explain why one direction is usually observed however..
To: JRandomFreeper
To: decimon
17
posted on
10/11/2011 4:15:57 PM PDT
by
Oatka
("A society of sheep must in time beget a government of wolves." –Bertrand de Jouvenel)
To: Oatka
Mysterious Moving Coffins A zombie with a sense of humor.
18
posted on
10/11/2011 4:23:07 PM PDT
by
decimon
To: decimon
Bump for reference. Interesting....
19
posted on
10/11/2011 4:48:23 PM PDT
by
MeneMeneTekelUpharsin
(Freedom is the freedom to discipline yourself so others don't have to do it for you.)
To: decimon
Boogie Boulders! ...cool
20
posted on
10/11/2011 4:58:06 PM PDT
by
tophat9000
(American is Barack Oaken)
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