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Pompeii-like volcanic ash kept dinosaur remains fresh
New Scientist ^ | 02/04/2014 | Jeff Hecht

Posted on 02/04/2014 7:44:58 PM PST by SeekAndFind

It's hot storage. Millions of years before volcanic ash entombed the Roman town of Pompeii, a group of dinosaurs succumbed to a similar fate. China's famous feathered dinosaur fossils owe their exquisite preservation to volcanic eruptions between about 130 and 120 million years ago.

The Jehol fossils have transformed our understanding of dinosaurs by showing that the relatives of Velociraptor and T. rex had a feather-like body covering, like birds. The Jehol deposits also preserved soft tissue from early mammals and flowering plants.

Baoyu Jiang of Nanjing University, China, and his colleagues think they know why the remains are so well preserved. They found carbon layers on the bones with a structure and composition that suggests they are charred soft tissue – and the limbs of skeletons are flexed as if they had been trapped in volcanic ash.

Raymond Rogers at Macalester College in St Paul, Minnesota, thinks the work may help explain the unusually good preservation seen in the region. "Examples of extraordinary preservation in the fossil record, such as the Jehol biota, generally demand extraordinary explanations," he says – and a Pompeii-like volcanic eruption fits the bill. But more work is needed to fully test the idea, he cautions.

The authors make a strong case, says David Eberth of the Royal Tyrrell Museum in Drumheller, Alberta, Canada. But he points out they only looked at 14 animal fossils. "Their sample size is just too small," he says. Other factors were probably involved in preserving Jehol fossils elsewhere in the area, he says.

(Excerpt) Read more at newscientist.com ...


TOPICS: History; Science
KEYWORDS: bayofnaples; catastrophism; china; dinosaur; evolution; godsgravesglyphs; herculaneum; misenum; neapolis; nuceria; oplontis; paleontology; pompeii; romanempire; salernum; stabiae; surrentum; velociraptor

1 posted on 02/04/2014 7:44:58 PM PST by SeekAndFind
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To: SeekAndFind

See also here:

http://news.nationalgeographic.com/news/2014/02/140204-dinosaur-fossil-china-volcano-pompeii/

Ancient Ash Volcanoes Entombed Chinese Dinosaurs


2 posted on 02/04/2014 7:46:45 PM PST by SeekAndFind
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To: SeekAndFind
EXCERPT FROM THE NATIONAL GEOGRAPHIC LINK ABOVE:

After analyzing fossils and sediment, Baoyu Jiang of China’s Nanjing University and his team concluded that lethal, sudden pyroclastic volcanic eruptions marked by air blasts, hot gas, and ground-hogging clouds of fine ash likely smothered, charred, and then carried forward everything in their path to create these bone beds, according to the study published in Nature Communications.

The finding explains why so many creatures would come to be buried on lake floors, and how they remained well preserved enough to retain signs of soft tissue features, such as feathers, tens of millions of years later.

3 posted on 02/04/2014 7:48:42 PM PST by SeekAndFind
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To: SeekAndFind
Same report from LIVE SCIENCE

Pompeii-like Eruption Fossilized Dinos in Death Poses

Excerpt:

Another possibility is that the animal bodies floated into the lake or were washed there by flooding. The researchers ruled these scenarios out, because the structure of the sediments and the intactness of the animal skeletons didn’t fit with these explanations.

4 posted on 02/04/2014 7:50:52 PM PST by SeekAndFind
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To: SeekAndFind

It’s a shame that the Pompeii-like volcanic ash didn’t keep the remains of the resident of Pompeii so fresh.


5 posted on 02/04/2014 8:24:20 PM PST by ClearCase_guy (Anti-Complacency League! Baby!)
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To: SeekAndFind
Good. There's nothing worse than stale dinosaur.
6 posted on 02/04/2014 8:26:45 PM PST by CrazyIvan (Obama phones= Bread and circuits.)
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To: SeekAndFind

Well... it would seem that we have a recent ‘test-bed’ to use to support this theory.

Mt. St. Helens. Volcano blew up. Bunch of creatures ‘preserved’ under all that ash. Some human.


7 posted on 02/04/2014 8:29:33 PM PST by UCANSEE2 (I forgot what my tagline was supposed to say)
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To: SeekAndFind

Well... if they were buried in ash, they could easily be intact. It’s ash.

If they were washed there by flooding, I have serious doubts that they would be ‘intact’. Those guys chasing Moses and their chariots didn’t make it ‘intact’.


8 posted on 02/04/2014 8:34:11 PM PST by UCANSEE2 (I forgot what my tagline was supposed to say)
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To: CrazyIvan

If ya slice it thin enough .... with some mayo ....


9 posted on 02/04/2014 8:38:41 PM PST by F15Eagle (1Jn4:15;5:4-5,11-13;Mt27:50-54;Mk15:33-34;Jn3:17-18,6:69,11:25,14:6,20:31;Ro10:8-11;1Tm2:5-6;Ti3:4-7)
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
Thanks SeekAndFind.

10 posted on 02/04/2014 9:26:32 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...
Thanks SeekAndFind.

11 posted on 02/04/2014 9:27:41 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: F15Eagle

...couple a slices of bacon...


12 posted on 02/05/2014 12:23:28 AM PST by Conservative4Ever (waiting for my Magic 8 ball to give me an answer)
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To: SeekAndFind
"Examples of extraordinary preservation in the fossil record, such as the Jehol biota, generally demand extraordinary explanations," he says – and a Pompeii-like volcanic eruption fits the bill. But more work is needed to fully test the idea, he cautions.

Uhm, ok, is there a gorilla in the room we are not supposed to notice?

13 posted on 02/05/2014 12:28:15 AM PST by AndyTheBear
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To: Conservative4Ever

And some Dark Rye bread with cheddar cheese and lettuce.


14 posted on 02/05/2014 12:40:41 AM PST by F15Eagle (1Jn4:15;5:4-5,11-13;Mt27:50-54;Mk15:33-34;Jn3:17-18,6:69,11:25,14:6,20:31;Ro10:8-11;1Tm2:5-6;Ti3:4-7)
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To: SeekAndFind

Neat


15 posted on 02/05/2014 9:13:30 AM PST by Dustbunny ("Government does not solve problems; it subsidizes them. " Ronald Reagan)
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To: ClearCase_guy; SunkenCiv

It’s a bad analogy. Pompeii was hit by a pyroclastic flow, which incinerates everything. I think this guy is saying the dinosaurs were rapidly covered in ash (although Vesuvius did produce a lot of ash, too).


16 posted on 02/05/2014 2:05:18 PM PST by colorado tanker
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To: colorado tanker

I could see how the bones would be preserved, but the flesh would be a goner. Herculanaeum was buried by a three- to four-storey flow, which left wooden upper storeys of buildings intact, whereas in Pompeii they are largely not preserved by the ash burial. In Herculanaeum wooden doors were carbonized and still hang on, and swing on, their original hinges.


17 posted on 02/05/2014 5:55:24 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: sauropod

.


18 posted on 02/07/2014 6:30:10 AM PST by sauropod (Fat Bottomed Girl: "What difference, at this point, does it make?")
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