[meteorite-list] Ice-rafted rocks on "dry-lakes"

From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Fri, 29 Aug 2014 10:53:28 -0700
Message-ID: <1409334808.88738.YahooMailNeo_at_web142504.mail.bf1.yahoo.com>

It's now official.? We can stop calling them "sailing stones".? New video shows that playa rocks are being barged across the lakebed.
Apparently, wind-driven, floating?sheets of ice?are?dragging or pushing the rocks leaving their "tracks" in the wet lakebed sediment.

Photos in the article?show tracks of rocks that make?tight turns and circle back into the direction?from which?they had come.??This shows that,
in these cases, the?rocks are locked into?the ice-sheet.?
http://images.realclear.com/256104_5_.jpg

Bob V.??

Information (and sources)?forward for archival purposes:

----------- Forward Text -----------
Date: Thu, 28 Aug 2014 7:51:48 -0400
From: "Paul H."
To: Rockhounds List
Subject: [Rockhounds] ?Sailing Stones? of Death Valley Mystery Solved

Mystery Solved: ?Sailing Stones? of Death Valley
Seen in Action for the First Time (Thin sheets of
ice push rocks across the desert when conditions
are just right.
Scripps Institution of Oceanography
https://scripps.ucsd.edu/news/mystery-solved-sailing-stones-death-valley-seen-action-first-time?hash=3f42fa4a60340630b1fde436c4f177fe

Mystery Of Death Valley's 'Sailing Stones' Has
Finally Been Solved by Ryan Grenoble
The Huffington Post, August 27, 2014
http://www.huffingtonpost.com/2014/08/27/death-valley-sailing-stones-solved_n_5718827.html

Mystery solved: The sailing stones of Death Valley
by Michelle Starr, CNET, August 27, 2014
http://www.cnet.com/news/mystery-solved-the-sailing-stones-of-death-valley/

Finally! Secret of Death Valley?s ?Sailing Stones? Is
Solved by Carl Engelking, Discover Magazine, Aug. 27, 2014
http://blogs.discovermagazine.com/d-brief/2014/08/27/secret-behind-death-valleys-sailing-stones-revealed/

The paper is: Norris, J. D., J. M. Norris, R. D. Lorenz, J. Ray, and
B. Jackson, 2014,
Sliding Rocks on Racetrack Playa,
Death Valley National Park:
First Observation of
Rocks in Motion. PLOS ONE. 9(8): e105948.
doi:10.1371/journal.pone.0105948
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0105948

Yours, Paul H.
--------------
Received on Fri 29 Aug 2014 01:53:28 PM PDT