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

[Michael Farmer]

I've known this for many years. Why this is "new" I have no clue.


Michael Farmer

> On Aug 29, 2014, at 12:18 PM, Jim Wooddell via Meteorite-list <meteorite-list at meteoritecentral.com> wrote:
> 
> Hi Bob and all!
> 
> When I first got into meteorites, I was shocked people were still talking about is as some kind of
> magical thing that hadn't been figured out!
> I think all this does is re-affirm what many already knew.  I did not take it as anything new at all!
> I know of the work a few of you did  about a decade ago, but ice rafting has been known for decades.
> Disappointed that this made it "official" as it's been official in my mind for years and years....not to mention a video I posted about a year or more ago of ice sheets that were carrying rocks slamming
> into the shore in heavy winds.  But whatever.  I would still contend wind and water, without the need for ice, can do the same thing.  Anyone who has tried to walk across a moist (almost muddy) dry lake knows how slippery they become!
> The power water and wind has is amazing!
> 
> I  get a kick of the giant rock ice-rafting picture!!
> 
> http://www.fvalk.com/images/Arctic/1991/Rock%20conveyor.jpg
> 
> Jim
> 
> 
> 
> 
> 
> 
>> On 8/29/2014 10:53 AM, Robert Verish via Meteorite-list wrote:
>> 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.
> 
> -- 
> Jim Wooddell
> jim.wooddell at suddenlink.net
> http://pages.suddenlink.net/chondrule/
> 
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