Posted on 09/22/2003 9:36:24 AM PDT by blam
'Ice Age time capsule' unearthed in America
September 22 2003 at 06:15AM
Springfield, Missouri - Paleontologist Matt Forir expected to find another 15m trash-filled pit when he went to investigate a cave unearthed by construction workers in southwest Missouri.
He could not have been more wrong.
The dynamite that blasted into limestone for a new road in Greene County unveiled proof that 630kg short-faced bears roamed the Ozarks during the Ice Age, and they struggled with arthritis and gout.
Forir and other researchers are also investigating the possibility that herds of peccary - piglike animals - sought shelter in caves thousands of years ago, as opposed to being dragged in by predators for food.
'This cave is a picture to the past' "Everywhere you look in here, you find something significant," said Forir, president of Missouri Speleological Survey.
Icicle-shaped stalactites, flowstone and soda straws created from countless drops of mineral-laden water might even prove useful for scientists.
"There's no question this cave is a picture to the past," said Kenneth C Thomson, Southwest Missouri state geology professor and cave expert.
Missouri has more than 5 700 registered caves. But researchers think this one, formally known as Riverbluff Cave, holds infinite research possibilities. They believe there might be enough evidence of Ice Age animals inside to give it national prominence.
The scientists are examining animal tracks and dung.
'Most of these animals don't belong in a cave, and yet they're here' "It certainly indicates that maybe they were using these caves in a social sense, where herds of them were going in to get out of bad weather," said Greg McDonald, a peccary expert and paleontological project co-ordinator for National Park Service in Denver.
"It raises all kinds of interesting questions as far as what the importance of caves was in the natural history of these animals."
The cave had remained closed until September 11, 2001, when construction workers stumbled onto it while building a road on the outskirts of Springfield, the state's third largest city. Forir wasn't expecting much when he arrived at the site.
But initial research shows most of the large formations likely formed during the Pleistocene Era, the period from about 1,8 million to about 13 000 years ago.
Also revealed are bear claw marks too big for any modern-day animal. Equally puzzling were the peccary tracks and turtle shells deep inside the cave.
"We call it our own Ice Age time capsule," said Dave Coonrod, presiding commissioner of Greene County, which decided to seal the cave for six months so the road could be completed and researchers could develop a plan for exploring its treasures.
Eventually, however, word of the discovery leaked out, and vandals stormed in. They carved into a centuries-old calcite column, trampled delicate skeletal remains of a snake and removed ancient mineral formations.
Most of the damage has been cleaned up and security has been tightened. But those familiar with the cave have continued to closely guard its location. Neighbours also have become protectors.
"People that have something in their back yard tend to get very excited about it and very proud, which is only right. But in this case it seems to be very justified," McDonald said.
Forir, the 29-year-old paleontologist, his two research assistants and Thomson, have been slowly working to map and study the cave centimetre-by-centimetre.
"This project will outlive me," Forir said.
So far, they have uncovered claw marks about 60cm-long and 18cm-wide and believed to be the front paw of a now-extinct short-faced bear. The largest black bear ever found in Missouri had a forepaw measure 12,7cm across.
"The short-faced bear is the T-Rex of the Ice Age," Forir said.
There also is a trio of extinct tortoises embedded in a wall. One fossil is believed to be about 30cm-long, more than twice the length of a modern-day box turtle shell.
"The easy part is identifying what it is," Forir said. "The hard part is determining what it's doing here. Most of these animals don't belong in a cave, and yet they're here."
Among the curiosities is the discovery of several peccary bones in a passageway.
"It's the only cave in the world with actual documented peccary tracks," Forir said.
The team hopes to eventually determine a timeline for the cave, but recrystalisation has made that difficult. Members compare it to a clock losing power during an outage. When power is restored, time resumes from the point the clock stopped ticking. It doesn't automatically indicate how long the power was off.
"It makes dating useless because we can only go back to the point that recrystalisation occurred," said David Gaunt, a Southwest Missouri state geology student and one of the research assistants.
The county has spent about $50 000 (about R350 000), some of it to move the planned road a couple of metres to protect the cave's pristine features. In tight budget times, Coonrod has had to fight hard to fund the project.
"In my mind it's a way we can learn from history," Coonrod said. "We should be able to see what mistakes were made, and how we can improve." - Sapa-AP
Could've been the set for the original Bambi.
Liberia and Burma
Teacher's pet!
FGS
FGS
Mostly Sigint, like morse, teletype, voice, etc.
Have done the Elint stuff too though.
My last few years was at Corp level so got to play with all the "ints."
heh, heh. And I never saw 'em go ballistic as soon as they became airborne, and maintain that attitude until they were out of sight. An awesome display!
Regards,
FGS
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I like that closing sentence -- "future decision-making could be made based on scientific data and not on political expediency". I wouldn't count on it, but that would be great.Caves reveal clues to UK weatherAt Pooles Cavern in Derbyshire, it was discovered that the stalagmites grow faster in the winter months when it rains more. Alan Walker, who guides visitors through the caves, says the changes in rainfall are recorded in the stalactites and stalagmites like the growth rings in trees. Stalagmites from a number of caves have now been analysed by Dr Andy Baker at Newcastle University. After splitting and polishing the rock, he can measure its growth precisely and has built up a precipitation history going back thousands of years. His study suggests this autumn's rainfall is not at all unusual when looked at over such a timescale but is well within historic variations. He believes politicians find it expedient to blame a man-made change in our weather rather than addressing the complex scientific picture.
by Tom Heap
Interesting. They kept working on the road after the events of that morning and made this amazing discovery?
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