Keyword: clovisimpact
-
Fireballs set half the planet ablaze, wiping out the mammoth and America's Stone Age hunters Scientists will outline dramatic evidence this week that suggests a comet exploded over the Earth nearly 13,000 years ago, creating a hail of fireballs that set fire to most of the northern hemisphere. Primitive Stone Age cultures were destroyed and populations of mammoths and other large land animals, such as the mastodon, were wiped out. The blast also caused a major bout of climatic cooling that lasted 1,000 years and seriously disrupted the development of the early human civilisations that were emerging in Europe and...
-
Terrestrial Evidence of a Nuclear Catastrophe in Paleoindian Times by Richard B. Firestone & William Topping The Paleoindian occupation of North America, theoretically the point of entry of the first people to the Americas, is traditionally assumed to have occurred within a short time span beginning at about 12,000 yr B.P. This is inconsistent with much older South American dates of around 32,000 yr B.P.1 and the similarity of the Paleoindian toolkit to Mousterian traditions that disappeared about 30,000 years ago.2. A pattern of unusually young radiocarbon dates in the Northeast has been noted by Bonnichsen and Will.3,4 Our research...
-
An extraterrestrial impact 13,000 years ago wiped out mammoths and started a mini-ice age, scientists believe Margaret Munro CanWest News Service Monday, May 14, 2007 A comet or some other extraterrestrial object appears to have slammed into northern Canada 12,900 years ago and triggered an abrupt and catastrophic climate change that wiped out the mammoths and many other prehistoric creatures, according to a team of U.S. scientists. Evidence of the ecological disaster exists in a thin layer of sediment that has been found from Alberta to New Mexico, say the researchers, whose work adds a dramatic and provocative twist to...
-
COLUMBIA, S.C. - A supernova could be the "quick and dirty" explanation for what may have happened to an early North American culture, a nuclear scientist here said Thursday. Richard Firestone said at the "Clovis in the Southeast" conference that he thinks "impact regions" on mammoth tusks found in Gainey, Mich., were caused by magnetic particles rich in elements like titanium and uranium. This composition, the Lawrence Berkeley National Laboratory scientist said, resembles rocks that were discovered on the moon and have also been found in lunar meteorites that fell to Earth about 10,000 years ago. Firestone said that, based...
-
Sept. 28, 2005— A supernova blast 41,000 years ago started a deadly chain of events that led to the extinction of mammoths and other animals in North America, according to two scientists. If their supernova theory gains acceptance, it could explain why dozens of species on the continent became extinct 13,000 years ago. Mammoths and mastodons, both relatives of today's elephants, mysteriously died out then, as did giant ground sloths, a large-horned bison, a huge species of armadillo, saber-toothed cats, and many other animals and plants. Richard Firestone, a nuclear scientist at the U.S. Department of Energy's Lawrence Berkeley National...
-
A supernova blast 41,000 years ago started a deadly chain of events that led to the extinction of mammoths and other animals in North America, according to two scientists. If their supernova theory gains acceptance, it could explain why dozens of species on the continent became extinct 13,000 years ago.
-
Published online: 02 November 2004; | doi:10.1038/news041101-5 Supernova debris found on Earth Mark Peplow Ancient explosion may have affected climate and, possibly, human evolution. Cosmic fallout from an exploding star dusted the Earth about 2.8 million years ago, and may have triggered a change in climate that affected the course of human evolution. The evidence comes from an unusual form of iron that was blasted through space by a supernova before eventually settling into the rocky crust beneath the Pacific Ocean. Gunther Korschinek, a physicist from the Technical University of Munich in Germany, leads a team who in 1999 found...
-
Al Goodyear and the Secrets of the Ancient AmericansUSC Professor Discovers 50,000 Year-Old Artifacts in S.C. BY RON AIKEN It was the summer of 1998, and University of South Carolina archaeologist Al Goodyear had a problem on his hands. Fourteen years of digging at an ancient chert quarry outside Allendale had begun to bear fruit: At a site called Big Pine Tree, Goodyear was well on his way to establishing that a substantial Clovis population lived here. If you’ll recall your history lessons from high school, the Clovis people — named such because the first evidence of them was found...
-
Comet may have exploded over planet, causing fires, die-offs, researchers say A meteorite colliding with the Earth 65 million years ago is considered to be the most likely reason dinosaurs vanished from the planet. Now a team of scientists says it has found new evidence that an object from space caused a similar extinction event only 13,000 years ago. In an article to be published Friday in the journal Science, researchers present what one author calls the "smoking bullet"—proof that an exploding comet triggered the sudden, thousand-year freeze that killed off mammoths, saber-toothed tigers and other large mammals that used...
-
Exploding asteroid theory strengthened by new evidence located in Ohio, Indiana Space & Earth science / Earth Sciences Ken Tankersley seen working in the field in a cave in this publicity photo from the National Geographic Channel. Geological evidence found in Ohio and Indiana in recent weeks is strengthening the case to attribute what happened 12,900 years ago in North America -- when the end of the last Ice Age unexpectedly turned into a phase of extinction for animals and humans -- to a cataclysmic comet or asteroid explosion over top of Canada. A comet/asteroid theory advanced by Arizona-based geophysicist...
-
Tiny balls of fungus and feces may disprove the theory that a huge space rock exploded over North America about 12,900 years ago, triggering a thousand-year cold snap, according to a new study. The ancient temperature drop, called the Younger Dryas, has been well documented in the geologic record, including soil and ice core samples.The cool-down also coincides with the extinction of mammoths and other Ice Age mammals in North America, and it's thought to have spurred our hunter-gatherer ancestors in the Middle East to adopt an agricultural lifestyle.But the theory that a comet or asteroid explosion is behind the...
-
Although human hunting played a part in the demise of the woolly mammoth about 10,000 years ago, homo sapiens were but bit players in a global drama involving climate change, comet impact and a multitude of other factors, scientists have found in separate studies. Previous research had blamed their demise on tribal hunting. But new findings “pretty much dispel the idea of any one factor, any one event, as dooming the mammoths,” said Glen MacDonald, a researcher and geographer at the University of California in Los Angeles, to LiveScience.com. In other words, hunting didn’t help, but it was not instrumental....
-
The mystery of mammoth tusks with iron fillings By By Ned RozellMarch 5, 2008 A giant meteor may have exploded over Alaska thousands of years ago, shooting out metal fragments like buckshot, some of which embedded in the tusks of woolly mammoths and the horns of bison. Simultaneously, a large chunk of the meteor hit Alaska south of Allakaket, sending up a dust cloud that blacked out the sun over the entire state and surrounding areas, killing most of the life in the area. Embedded iron particles surrounded by carbonized rings in the outer layer of a mammoth tusk from...
-
Posted on June 16, 2012 by Anthony Watts WUWT readers may recall this recent story: New evidence of Younger Dryas extraterrestrial impact The story below provides much more detail about the Younger Dryas event and the split that has developed in the scientific community over the cause. I’ve added this graph below from NCDC to give readers a sense of time and magnitude of the event. – Anthony The Younger Dryas cold interval as viewed from central Greenland. From:Quaternary Science Reviews Volume 19, Issues 1-5, 1 January 2000, Richard B. AlleyGuest Post By: Rodney Chilton www.bcclimate.com A consideration of many...
-
Did Comets Cause Ancient American Extinctions?Anne Casselman for National Geographic NewsMay 6, 2008 Debate has heated up over a controversial theory that suggests huge comet impacts wiped out North America's large mammals nearly 13,000 years ago. The hypothesis, first presented in May 2007, proposes that an onslaught of extraterrestrial bodies caused the mass extinction known as the Younger Dryas event and triggered a period of climatic cooling. The theory has been debated widely since it was introduced, but it drew new scrutiny in March at the annual meeting of the Society for American Archaeology annual meeting in Vancouver, Canada. Stuart...
-
Central Mexico’s Lake Cuitzeo contains melted rock formations and nanodiamonds that suggest a comet impacted Earth around 12,900 years ago, scientists say. CREDIT: Israde et al. (2012) New evidence supports the idea that a huge space rock collided with our planet about 13,000 years ago and broke up in Earth's atmosphere, a new study suggests. This impact would have been powerful enough to melt the ground, and could have killed off many large mammals and humans. It may even have set off a period of unusual cold called the Younger Dryas that began at that time, researchers say. The...
-
Nanodiamonds found across North America suggest that major climate change could have been cosmically instigatedRoughly 12,900 years ago, massive global cooling kicked in abruptly, along with the end of the line for some 35 different mammal species, including the mammoth, as well as the so-called Clovis culture of prehistoric North Americans. Various theories have been proposed for the die-off, ranging from abrupt climate change to overhunting once humans were let loose on the wilds of North America. But now nanodiamonds found in the sediments from this time period point to an alternative: a massive explosion or explosions by a fragmentary...
-
Very long but good anthropology/archaeology article Click Here
-
New data disproves the recent theory that a large comet exploded over North America 12,900 years ago, causing a shock wave that travelled across North America at hundreds of kilometres per hour and triggering continent-wide wildfires. Dr Sandy Harrison from the University of Bristol and colleagues tested the theory by examining charcoal and pollen records to assess how fire regimes in North America changed between 15 and 10,000 years ago, a time of large and rapid climate changes. Their results provide no evidence for continental-scale fires, but support the fact that the increase in large-scale wildfires in all regions of...
-
"These findings are inconsistent with the alternative and already hotly debated theory that overhunting by Clovis people led to the rapid extinction of large mammals at the end of the ice age, the research team argues in the PNAS paper."
|
|
|