Pegasus Research Consortium

Earth Sciences => This Magnificent Planet => Topic started by: sky otter on January 16, 2014, 07:37:45 PM

Title: Antarctica humongous trench found
Post by: sky otter on January 16, 2014, 07:37:45 PM


http://www.huffingtonpost.com/2014/01/16/west-antarctica-subglacial-ellsworth-trench-canyon_n_4602104.html?utm_hp_ref=science


You'll Never Guess What's Hiding Beneath A West Antarctica Ice Sheet



(VIDEO)         at link along with a lot of embedded links


The Huffington Post  |  By Meredith Bennett-Smith
Posted: 01/16/2014 11:05 am EST  |  Updated: 01/16/2014 1:30 pm EST


Think the Grand Canyon is big? British scientists working in West Antarctica have discovered a subglacial trench that's deeper than Arizona's famed canyon. Whoa.

The scientists found the colossal trough while charting the Ellsworth Subglacial Highlands, an ancient subglacial mountain range in the area, and detailed the discovery in a paper published in the January issue of the Geological Society of America Bulletin.
http://gsabulletin.gsapubs.org/content/early/2013/09/16/B30794.1.abstract

"The discovery of this huge trough, and the characterization of the surrounding mountainous landscape, was incredibly serendipitous," the paper's lead author, Dr. Neil Ross, a physical geography lecturer at Newcastle University in the U.K., said in a written statement. "To me, this just goes to demonstrate how little we still know about the surface of our own planet. The discovery and exploration of hidden, previously unknown landscapes is still possible and incredibly exciting, even now."

Dubbed Ellsworth Trough, the trench was created tens of million years ago by a small, "dynamic" ice field that slowly carved out the dramatic formations now hidden beneath a layer of ice more than a mile thick.

With the help of ice-penetrating radar, the scientists found the trough to be more than 186 miles long, up to 15 miles across and, in some places, 1.8 miles deep, according to a written statement released by Bristol University. The Grand Canyon has an average depth of about 1 mile and maximum width of 17.9 miles.

The Ellsworth Trough is so large, it can be seen from space -- yes, even beneath all of that ice. As Gizmodo reported, NASA helped researchers map the trough by sharing satellite imagery that provided a big-picture view of the subglacial canyon.

"By looking at the topography beneath the ice sheet using a combination of ice-penetrating radio-echo sounding and satellite imagery, we have revealed a region which possesses classic glacial geomorphic landforms, such as u-shaped valleys and cirques, that could only have been formed by a small ice cap, similar to those seen

at present in the Canadian and Russian High Arctic," Dr. Martin Siegert, a member of the research team and professor of geosciences at the University of Bristol in the U.K., said in the written statement. "The region uncovered is, therefore, the site of ice sheet genesis in West Antarctica."
Title: Re: Antarctica humongous trench found
Post by: rdunk on January 16, 2014, 09:50:14 PM
Well, a very interesting find. Even more interesting to me is the thought that this trench was carved out by the icecap, while their only similar land comparison was made otherwise:

"How was the Grand Canyon Made"? - Ask.com Answers
The Grand Canyon was made by the Colorado River, taking 5.4 million years to create it.

Would not this be a place for the "pole changer crowd" to say, "Hum, we told you so"!?? Doncha thing this just might be more and different "proof positive" that this planet of ours has experienced/does experience significant pole changes?

Of course we have been talking about reoccurring warming and cooling periods fairly often, but with a significant pole change,  could not that freeze animals with food in their stomachs, at the new poles, as have been discovere?

In just this weeks news, there is a story about the recent "quick freeze" of life:

It got so cold so quickly in this Norwegian bay that it froze a bunch of fish swimming in it

http://news.yahoo.com/blogs/oddnews/it-got-so-cold-so-quickly-in-this-norweigan-bay-that-it-froze-a-bunch-of-fish-swimming-in-it-232504960.html

FWIW, I am not saying ice could not have made the trench. But, I do say, "how could that possibly be the only possibility", as that is not how all canyons/trenches are made.
Title: Re: Antarctica humongous trench found
Post by: robomont on January 16, 2014, 11:38:30 PM
Your idea has credibility but.
The grand canyon is not straight and has verticle sides.the south pole one has sloping sides..
But my theory could be wrong too.
Title: Re: Antarctica humongous trench found
Post by: deuem on January 17, 2014, 01:04:42 AM
earth crustal displacement like the movie 2012 ?

mothert nature rockin the house.
Title: Re: Antarctica humongous trench found
Post by: zorgon on January 17, 2014, 02:02:22 AM
Quote from: rdunk on January 16, 2014, 09:50:14 PM
Well, a very interesting find. Even more interesting to me is the thought that this trench was carved out by the icecap, while their only similar land comparison was made otherwise:

The Great Lakes were carved out by ice, then filled when the ice receded and melted

Quote"How was the Grand Canyon Made"? - Ask.com Answers
The Grand Canyon was made by the Colorado River, taking 5.4 million years to create it.

Ask dot com is almost as bad as Yahoo Answers LOL No real answers there

The Grand Canyon is not a 'hole in the ground'  Yes the Colorado River has carved it deeper but that is not what created it.

Imagine a piece of pie....  Lay a rod on the table and put the pie on the rod. Now press both sides of the pie so it breaks along that rod....

The two rims of the crack are pushed UP creating a V shaped crack.  THAT is how the grand Canyon was formed...

It sits on the west side of the Continental Divide   The land slopes generally downhill on both sides  The top of the canyon where you view from is at 7000 ft altitude  Bryce Canyon a few miles away is at 11,000 ft

(http://www.worldatlas.com/aatlas/infopage/contdiv.gif)

ALL the famous canyons out here are in the same strata  and thus all cracks cause by shifting plates

(http://www.bobspixels.com/kaibab.org/geology/xcolplat.gif)

QuoteWould not this be a place for the "pole changer crowd" to say, "Hum, we told you so"!?? Doncha thing this just might be more and different "proof positive" that this planet of ours has experienced/does experience significant pole changes?

The Pole Changes that have occurred are changes of the MAGNETIC POLE just like on the Sun every 11 years. The Actual poles do not move (Thought they did move a small degree when the EQ in Japan hit)

QuoteOf course we have been talking about reoccurring warming and cooling periods fairly often, but with a significant pole change,  could not that freeze animals with food in their stomachs, at the new poles, as have been discovered?

No because the real poles don't move. If they did it would shake every one off :P  Besides how could they drill ice cores through the ice in Antarctic and go back 420,000 years (layers)?

QuoteIn just this weeks news, there is a story about the recent "quick freeze" of life:

It got so cold so quickly in this Norwegian bay that it froze a bunch of fish swimming in it

THIS is scary... THIS is "The Day After Tomorrow" already starting.


QuoteFWIW, I am not saying ice could not have made the trench. But, I do say, "how could that possibly be the only possibility", as that is not how all canyons/trenches are made.

Ask Norval :D It could be a scar made by a giant Thunderbolt, like the one on Mars :D
Title: Re: Antarctica humongous trench found
Post by: robomont on January 17, 2014, 02:41:08 AM
As far as freezing.dont forget the cattle in s dakota also.thats probly how those mammoths died too.
Title: Re: Antarctica humongous trench found
Post by: Norval on January 17, 2014, 04:41:43 AM
The biggest Crack known so far is on Mars.  :P
Title: Re: Antarctica humongous trench found
Post by: Gigas on January 17, 2014, 05:54:18 AM
Ever wonder how a place like devils tower from the movie close encounters popped up. I would guess it was pushed up from below cause that's how it looks to me. You see that characteristic all over the west and south west us.

Title: Re: Antarctica humongous trench found
Post by: zorgon on January 17, 2014, 09:55:31 AM
Quote from: Gigas on January 17, 2014, 05:54:18 AM
I would guess it was pushed up from below cause that's how it looks to me.

Quite likely since it is a massive basalt thrust

They are actually what is left of ancient volcanoes... the PLUG in the center and the rest of it has worn away

(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_16.jpg)
Shiprock, NM, with radiating dike.

(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_17.jpg)
Shiprock, NM (basaltic dike).


(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_18.jpg)
Church of the volcanic plug (Le Pay, France)
Title: Re: Antarctica humongous trench found
Post by: zorgon on January 17, 2014, 10:02:31 AM
(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_19.jpg)
Devil's Tower Nat'l Monument, WY (Devil's Post Pile)

(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_20.jpg)
Devil's Post Pile

Matrix will love this one :D

(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_21.jpg)
Schematic of columnar jointing

(http://www.geology.ohio-state.edu/~vonfrese/gs100/lect10/xfig10_22.jpg)
Tops of columnar jointing
Title: Re: Antarctica humongous trench found
Post by: The Matrix Traveller on January 17, 2014, 10:24:27 AM
Indeed "Z" I do....   :)

I love some of these photos you come out with....