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

[Robert Verish]

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. 
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