Posted on 08/06/2008 12:18:53 AM PDT by neverdem
Neat!
The diatom record indicates that Palaeolake Boreas was long lived (Ashworth et al. 2007). Restriction of the ostracods to a single horizon implies that their colonization was serendipitous, and that the lake was only temporarily viable.
Relatively rapid change? Or else they were on the edge as it was? The fact that they pyritized indicates low organic carbon and lots of reactive iron, so perhaps it wasn't a temperature change that killed them off...?
The ostracods were discovered by Richard Thomasson, an undergraduate student, during screening of the sediments in Ashworths laboratory at North Dakota State University.
Cool! I love it when undergrads make discoveries!
The details are extraordinary...Exceptionally, sub-micrometer-scale details such as setae and wrinkles are preserved as external moulds by coarse-grained coatings, but such resolution is typically associated with replacements by microcrystalline fabrics.
Global cooling sucks.
there are seams of coal in antartica 100’s of feet thick,,the place was tropical for millions of years
Not Miocene.
And so the paleoglacial deposits were just put there by God to fool us into thinking there were previous ice ages?
Global warming from Paleozoic SUV’s?
perhaps by the same birds that once sat in the trees
that left their stumps in the ground and fossilized bark
and leaves...after the birds flew back to where they migrated from?
Paleontologists from the United States and Argentina discovered one of the most complete plesiosaur skeletons ever found. (A plesiosaur is a swimming marine reptile that lived about 70 million years ago. At that time the waters of what is now Antarctica were much warmer than they are today.) The fossil plesiosaur was discovered during a 2005 expedition to Antarctica. The fossil goes on display today at the South Dakota School of Mines and Technology's Museum of Geology.
This plesiosaur specimen is a juvenile of about 5 feet (1.5 meters) in length. An adult plesiosaur is about 32 feet (10 meters). It was perfectly articulated and complete, except that the skull had been lost to erosion. The plesiosaur was excavated from deposits of shallow marine sands covered by volcanic ash. Paleontologists speculate that the volcanic blast or debris thrown into the ocean was responsible for the plesiosaur's death...
Artist's impression of the plesiosaur and environment. Painting by Nicolle Rager, National Science Foundation.
Fighting . . . urge . . . to make . . . H.P. Lovecraft reference . . . here . . . .
Oh, God! I hope not. /s
Yes. And furthermore, the ONLY REASON WE HAVE ICE AGES is that we currently have a landmass at one of the poles.
If Antarctica was next to France then the world would be warmer.
Global cooling; the earth is freezing. We’re ALL GONNA DIE!
Look on the bright side. When global warming converts the terperate zones to furnaces, we can all move to Antarctica.
Protection has more people packing heat
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related:
Ancient Vegetation, Insect Fossils Found in Antarctica
Fox News
Posted on 08/05/2008 9:56:54 AM PDT by Scythian
http://www.freerepublic.com/focus/f-news/2056891/posts
http://www.physorg.com/news137089101.html
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