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BREAKING THE ICE

 
 
Setanta
 
Reply Mon 7 Sep, 2015 07:32 pm
I thought people here might find this article from Smithsonian-dot-com interesting:

Melting Ice in Yellowstone is Revealing Ancient Artifacts Faster Than Researchers Can Handle

Also imbeded in that article is a link for an article from the National Park Service about ice patch archaeology in Glacier National Park.

Glaciers flow just as does liquid water, although very, very slowly. The significance of ice patches is that they stay where they are, and always have been.
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Type: Discussion • Score: 6 • Views: 1,580 • Replies: 8
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rosborne979
 
  1  
Reply Tue 8 Sep, 2015 04:17 am
@Setanta,
One of the benefits of global warming? Smile
Setanta
 
  1  
Reply Tue 8 Sep, 2015 04:34 am
Yeah . . . i thought the same thing. However, we had better hurry to do any sea shore archaeology, because in about a century, sea levels are gonna rise 10 to 20 feet.
farmerman
 
  2  
Reply Tue 8 Sep, 2015 05:25 am
@Setanta,
Im looking for any published pollen data from these ice patches. It appears that, the cultural levels are all in some "ice out" area that later became ice covered , the Indians then moved away (Apparently RATHER ABRUPTLY) and these artifacts were encapsulated in the ice.
Now the ice is retreating and all these finds are being made.
Perhaps thay need to carry a flatbed truck with polythene glycol(which is what they flood sprayed all over the VAsa for years inorder to save and harden the wood planks that began to rot the instant that the boat was pulled out of the cold anoxic waters).
Things like clothing and bags and wooden effigies are rare artifacts in Paleo Indian middens due to rapid decay.

farmerman
 
  1  
Reply Tue 8 Sep, 2015 05:45 am
@farmerman,
seems I was incorrect about use of PEG in such n environment. The Texas A&M conservation site reccomnded some of the following solutions to be used on textiles or plant fibre artifacts

Quote:
polyvinyl alcohol (water-soluble, dries clear with minimum shrinkage)
polyvinyl acetate (V7) (note: resin shrinkage during drying may distort fibers)
ethulose (ethyl-hydroethyl cellulose) (water-soluble, very pliable)
polymethacrylate
Acryloid B-72, 5 percent in toluene
A &M


seems they go more for some kind of "Super Glue" compounds
izzythepush
 
  1  
Reply Tue 8 Sep, 2015 06:02 am
@farmerman,
The Mary Rose was excavated from the bottom of the Solent where it lay for hundreds of years, and as such has to be kept wet. It's a very interesting exhibition, but it stinks, the dank smell you get when you leave wet unwashed clothing in a plastic bag for a month.

They don't tell you that when they advertise the exhibition.
0 Replies
 
rosborne979
 
  1  
Reply Tue 8 Sep, 2015 06:06 am
@Setanta,
The Yin and Yang of things.
0 Replies
 
HesDeltanCaptain
 
  0  
Reply Tue 8 Sep, 2015 06:48 am
@Setanta,
Melting ice because...? Climate change or because the magma chamber's rising? Smile
0 Replies
 
HesDeltanCaptain
 
  0  
Reply Tue 8 Sep, 2015 06:49 am
@rosborne979,
No, that'd be the melting polar region exposing oil for the Russians and US to fight over.
0 Replies
 
 

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