Posted on 08/15/2007 5:32:04 PM PDT by baynut
A "black mat" of algal growth in Arizona marks the extinction of mammoths 12,900 years ago
New scientific findings suggest that a large comet may have exploded over North America 12,900 years ago, explaining riddles that scientists have wrestled with for decades, including an abrupt cooling of much of the planet and the extinction of large mammals. The discovery was made by scientists from the University of California at Santa Barbara and their colleagues. James Kennett, a paleoceanographer at the university, said that the discovery may explain some of the highly debated geologic controversies of recent decades.
The period in question is called the Younger Dryas, an interval of abrupt cooling that lasted for about 1,000 years and occurred at the beginning of an inter-glacial warm period. Evidence for the temperature change is recorded in marine sediments and ice cores.
According to the scientists, the comet before fragmentation must have been about four kilometers across, and either exploded in the atmosphere or had fragments hit the Laurentide ice sheet in the northeastern North America.
Wildfires across the continent would have resulted from the fiery impact, killing off vegetation that was the food supply of many of larger mammals like the woolly mammoths, causing them to go extinct.
Since the Clovis people of North America hunted the mammoths as a major source of their food, they too would have been affected by the impact. Their culture eventually died out.
The scientific team visited more than a dozen archaeological sites in North America, where they found high concentrations of iridium, an element that is rare on Earth, and is almost exclusively associated with extraterrestrial objects such as comets and meteorites.
They also found metallic microspherules in the comet fragments; these microspherules contained nano-diamonds. The comet also carried carbon molecules called fullerenes (buckyballs), with gases trapped inside that indicated an extraterrestrial origin.
The team concluded that the impact of the comet likely destabilized a large portion of the Laurentide ice sheet, causing a high volume of freshwater to flow into the north Atlantic and Arctic Oceans.
"This, in turn, would have caused a major disruption of the ocean's circulation, leading to a cooler atmosphere and the glaciation of the Younger Dryas period," said Kennett. "We found evidence of the impact as far west as the Santa Barbara Channel Islands."
NSF's Paleoclimate Program funded the research.
It is strange how it stays out on the fringe of reporting.
ML/NJ
...or it could have been the return of Planet X (3600 year cycles) as recorded by every major ancient civilization since the beginning of records....”wormwood” for you Fatima fans.....The “Red dragon” for you Asians.....”Niburu” for you Sumerian’s in da house....
> Comets are not bombs.
They are if they hit the atmosphere.
Ice to steam (or even plasma), instantly.
Tunguska (1908) may have been one.
ML/NJ
Hypersonic speeds can turn just about any large object into a bomb.
3. Turn LEFT on CANEY RD go 1.1 mi 1.3 mi
4. Turn LEFT on BROOKWOOD RD go < 0.1 mi 1.3 mi
5. Turn RIGHT on PEACHTREE PKY(GA-141) go 1.9 mi 3.2 mi
6. Continue to follow GA-141 go 14.0 mi 17.2 mi
7. Take ramp onto I-285 E go 2.2 mi 19.4 mi
8. Continue on I-285 S go 13.0 mi 32.4 mi
9. Continue on I-285 W go 5.4 mi 37.8 mi
10. Take exit #52/MACON onto I-675 S go 11.4 mi 49.2 mi
11. Continue on I-75 S go 62.2 mi 111.4 mi
12. Take LEFT exit #165/SAVANNAH/JIM L GILLIS HWY onto I-16 E go 115.0 mi 226.4 mi
13. Take exit #116/STATESBORO/CLAXTON go 0.4 mi 226.8 mi
14. Turn RIGHT on US-25 S go 1.1 mi 227.9 mi
15. Continue on US-301 go 9.5 mi 237.4 mi
16. Turn RIGHT on E MAIN ST(US-280) go < 0.1 mi 237.4 mi
17. Continue to follow US-280 go 0.8 mi 238.2 mi
18. Arrive at 802 W MAIN ST, CLAXTON
802 W MAIN ST, CLAXTON, GA
Immanuel Velikovsky wrote many books about this in the 1950s and was treated as a nut by academia
Uh-Huh. another mammoth story.
I have a scientific background so let me elaborate on this. Now you have to first understand the origins then we will work up to the present.
According to Al Gore it was the Bush administrations failures to prevent global warming that caused this event 13,000 years ago.
Want proof? I have 500 UN science majors that will corroborate Al’s story.
Shoemaker Levy fragments caused explosions on Jupiter. Some of those explosions were larger than the earth.
Comets are not composed of ice. The science mafia came up with that kluge to explain away the enigma of the comet’s tail- had to be “evaporation” or sublimation of a liquid. Closeup satellite pictures have proven that comets are meteors/asteroids, yet the brahmins of orthodoxy in academia and the press idiotically continue to refer to comets as “dirty snowballs”. The comet tail is caused by plasma discharge due to charge difference between the meteor and the solar “wind”, which itself is really solar _charge_, an electric/plasma Birkland current. See: http://www.thunderbolts.info/
There is a good chance that the meteor in question did not impact the earth but was discharged before impact, blown apart by a large short circuit of lightning. The puzzling 1908 Siberian Tunguska event left a miniscule impact crater, yet forests for a radius of 60 miles were blown flat, registering on seismographs in Europe.
Contemporary science is a cesspool of ideology that routinely sacrifices direct observation on the altar of political correctness
More references:
http://www-th.bo.infn.it/tunguska/,
http://public.lanl.gov/alp/plasma/TheUniverse.html,
http://gallery.bcentral.com/Gallery/ProductListing.aspx?GID=4907389&Dept=215905,
http://www.knowledge.co.uk/sis/resource.htm,
http://www.holoscience.com/home/home.htm
http://www.kronia.com/
I don't think Velikovsky is a nut. I'm not sure what book(s) of his you have in mind, maybe Worlds in Collision? But Venus didn't explode, in the Velikovsky scenario. What are you talking about?
ML/NJ
ML/NJ
I thought it was Marduke that exploded / asteroid belt as the result.
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