[meteorite-list] Why Are Death Valley's Rocks Moving Themselves? --not off-topic at all!

From: cdtucson at cox.net <*cdtucson_at_meteoritecentral.com*> Date: Sun, 20 Feb 2011 11:07:46 -0500 Message-ID: <20110220110746.0EMYJ.1291296.imail_at_fed1rmwml31> · cdtucson_at_meteoritecentral.com

--
Carl or Debbie Esparza
Meteoritemax
---- Martin Altmann <altmann at meteorite-martin.de> wrote: 
> Hi there, 
> 
> haven't followed the whole thread,
> therefore sorry if it's a double post,
> here is an article about moving rocks on Planet Mars:
> 
> http://www.ucalgary.ca/news/utoday/jan7-09/martianrock
> 
> Best!
> Martin
> 
> 
> 
> 
> 
> 
> 
> 
> 
> PS:
> Currently camping next to a promising rock, looking like a meteorite,  in
> desert, waiting for it to trespass an imaginary line, from where on it will
> immediately lose its status as a natural heritage and its cultural
> properties.
> I have no incentive to announce it to the authorities, although it looks
> like ALH 84001, but has fresher fusion crust, because they will declare it
> to be property of the state. And they even won't give me back the dime for
> the phone call. Anyway, it would cause only troubles.
> So I wait... come to papa...  and if it doesn't come... who cares. 
> 
> 
> It's a strange thing, with that heritage and culture and the national
> importance.
> I'm born in the country, where Ernst Florens once invented the meteorites at
> all.
> 72 entries we have in the Bulletin, quite the same like Argentina or Canada,
> much more than Slovakia or Denmark. And seen surface and time, we even left
> Australia behind.
> In the neighbor state, Schreibers invented modern meteoritics.
> We both have no meteorite law!!!   Eeek!  How can this be possible - a true
> scandal!!
> 
> (I know, I know an useless argument. In Australia, Oman, Argentina..nobody
> knows, who Ernst Florens and Carl von  was.) 
> 
> 
> 
> 
> -----Urspr?ngliche Nachricht-----
> Von: meteorite-list-bounces at meteoritecentral.com
> [mailto:meteorite-list-bounces at meteoritecentral.com] Im Auftrag von G?ran
> Axelsson
> Gesendet: Sonntag, 20. Februar 2011 13:35
> An: Meteorite List
> Betreff: Re: [meteorite-list] Why Are Death Valley's Rocks Moving
> Themselves? --not off-topic at all!
> 
> If I might make a guess here....
> 
> The area is covered under a thin layer of water, not enough to cover the 
> rocks. Then the temperature drops, forming a thin layer of ice, trapping 
> the rocks. Then it doesn't need a lot of wind to drag along an ice sheet 
> with frosen in rocks. As the rocks is still protruding from the ice, it 
> forms tracks in the underlying surface.
> If more than one rock is trapped in the ice, then they will form 
> parallel tracks, turning at the same time if the wind direction shifts.
> 
> I've seen the tremendous force a loose ice sheet and a modest wind can 
> achieve. Many years ago in spring I was at our cabin near a lake. The 
> weather had been warm and calm so the ice sheet of the lake (3 km x 1 km 
> big) was thawed a couple of meters around the edges. Then it started to 
> blow straight towards us and the ice started to move. First slowly, 
> hardly noticeable, then it started to creep up onto the beach. When it 
> started I stood at the edge of the water but after fifteen minutes I had 
> been pushed over a meter back by the ice and along the beach was a half 
> meter wall of ice. Then it all stopped and I've never experienced it 
> again, but I've seen the wall of ice deposited along beaches a couple of 
> times since then.
> 
> /G?ran
> 
> 
> 
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