Wednesday, August 21, 2013

Re: [Geology2] Only in Alaska? Creeping frozen landslide threatens critical highway and pipeline



I envy you. Did you see wildlife? Allison


From: Rick Bates <HappyMoosePhoto@gmail.com>
To: "geology2@yahoogroups.com" <geology2@yahoogroups.com>
Sent: Wednesday, August 21, 2013 12:52 PM
Subject: Re: [Geology2] Only in Alaska? Creeping frozen landslide threatens critical highway and pipeline

 

"A glacier is a persistent body of dense ice exceeding a surface area of 0.1 km² constantly moving under its own gravity which forms where the accumulation of snow exceeds its ablation over many years, often centuries. Wikipedia"

I believe this debris fails the test of being a glacier in that it only recently started to move as evidenced by the trees still standing around and in the patch of ice.  It is also not dense (or it'd be bluer). 

I was up there just over a year ago.  Spectacular beauty and solitude abound.  It's a few hundred miles north of Fairbanks, on the 'haul' road (Dalton). 

Rick wa6nhc

Tiny iPhone 5 keypad, typos are inevitable

On Aug 21, 2013, at 10:20 AM, Allison Maricelli-Loukanis <allison.ann@att.net> wrote:

 
Isnt' this a glacier? Allison


From: Lin Kerns <linkerns@gmail.com>
To: Geology2 <geology2@yahoogroups.com>
Sent: Wednesday, August 21, 2013 9:21 AM
Subject: [Geology2] Only in Alaska? Creeping frozen landslide threatens critical highway and pipeline

 

Only in Alaska? Creeping frozen landslide threatens critical highway and pipeline

Laurel Andrews
August 13, 2013

If left alone, the mysterious, icy landslide will reach a highway critical to Alaska's North Slope oil patch -- and after that will even threaten the trans-Alaska pipeline itself. But there's still plenty of time to stop it. Dr. Ronald Daanen / DNR
A massive landslide of frozen debris and ice is inching its way toward the Dalton Highway, outside of the Gates of the Arctic National Park Preserve, and nobody is quite sure how to stop it. If left to its own devices, in the next ten years the little-understood formation will reach the highway which serves as the only ground link between Alaska's road system and its critical North Slope oil patch. If the slide isn't stopped, it will eventually threaten the trans-Alaska pipeline itself.
As new evidence shows that the formations -- called frozen debris lobes -- have sped up over time, researchers are calling for more studies on the huge, frozen landslides, and the Department of Transportation is assessing how to best handle the threat to the state's infrastructure.
The best solution, for now, may be to simply get out of the landslide's path.
R
ead the rest of this long article here: 
http://www.alaskadispatch.com/article/20130813/only-alaska-creeping-frozen-landslide-threatens-critical-highway-and-pipeline






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