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Author Topic: Spherule attack and the demise of Clovis!  (Read 14224 times)
trehinp
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« Reply #15 on: January 18, 2008, 06:45:34 PM »

Thanks E.P.,

Since I'm not a specialist in this domain I won't make any comment but I will be interested by the conclusions of all these researches.

The impact of such catastrophic events on human biological and cultural development must have been awsome...

Thanks for keeping us informed.

Paul
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Paul Trehin
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« Reply #16 on: January 20, 2008, 02:22:30 PM »

Hi Paul -

The effects WERE awesome. Though the human mind has problems dealing with this kind of news, these effects are also undeniable.

You may have noticed that with the exception of Peiser, Masse, and Kenneth et al., the researchers are geologists, physicists, astronomers, paleoclimatologists.  Do you have any idea of how badly anthropology can be done by geologists, physicists, and astronomers?  [Well, it's just a little worse than that done by one veteran space journalist.]

What we have here is a MAJOR force on human development that is generally unrecognized within the anthropological community. Thus this development in the field of anthropology is wide open for whoever gets there first with the most.  Included is every aspect of every people and every culture that ever was.

The price of admission is working alone unfunded while surrounded by sceptics, and at the same time dealing with various nuts, both of the Earth and Space variety.  That's alongside all the normal problems such as racism, nationalism, data ambiguity, irregular data recovery, data bias, and the usual limits in tools.   





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« Reply #17 on: November 18, 2008, 10:15:07 AM »

Hi Jacques, all -

Forwarded from the Cambridge Conference:

13) YDB/CLOVIS COMET AT AGU

Dear Benny:

I am writing to share the news about the discovery of billions of diamonds per cm3 associated with the proposed Younger Dryas impact event, or "Clovis Comet," as it is sometimes called. Data on the discovery will be presented on December 15-16 at the American Geophysical Union's annual Fall Meeting in San Francisco. On December 16, there will be 4 talks (http://www.agu.org/cgi-bin/sessions5?meeting=fm08∂=PP23D&maxhits=400), and the day before, on December 15, there will be 8 poster presentations (http://www.agu.org/cgi-bin/sessions5?meeting=fm08∂=PP13C&maxhits=400  - Scroll down to PP13C-1469 through 1477). As you and your readers may remember, data on about a dozen other lines of impact evidence were presented to AGU at the Acapulco Joint Assembly in 2007. Since then, the hypothesis has created considerable controversy.

The lead presentation will reveal the discovery of all three diamond allotropes (cubic diamond, lonsdaleite, and n-diamond) in the YDB impact layer, dating to the Younger Dryas onset at 12.9 ka (as well as the new discovery of lonsdaleite and n-diamonds in the KT boundary). The YDB diamonds are distributed broadly across N America and NW Europe at 15 sites spanning 9,000 km or 23 percent of Earth's circumference. N-diamonds and lonsdaleite, or hexagonal diamond, do not co-occur with terrestrial diamonds, but are found in meteorites. Lonsdaleite is found on Earth only in association with known ET impacts, and thus, is a definitive impact indicator. No diamonds have ever been detected in sediments above or below the YD impact layer.

Some critics have suggested that all the inferred impact material is nothing more than typical meteoritic ablation products and that the indicators rained down from the heavens non-catastrophically over time. This hypothesis is refuted by the presence of millions of diamonds inside single carbon spherules that formed rapidly from charred tree sap. Our research, which has resulted in a patent application for a new process to create diamonds, indicates that they could have only formed during the extraordinarily high temperatures and pressures that existed during an impact. The "cosmic rain" was heavy and far from gentle.
 
I have also placed a PDF of them on my website here:  http://www.georgehoward.net/finalAGUabstracts.pdf

Kind regards.

George A. Howard |  Partner
Restoration Systems, LLC
1101 Haynes Street, Suite 211
Raleigh N.C. 27604
www.restorationsystems.com
www.georgehoward.net

I think that explains all those corpses Hibben saw piled up. And explains some of those strange tales
some of the peoples here in North America told.

E.P. Grondine
Man and Impact in the Americas
(a damned fine book, if I do say so myself, and paleo forum participants can write me off list for personally signed copies  for a special low price. My book has hundreds of pages of small type filled with typos and not enough pictures, and if that were not enough, in addition it has a correction sheet is pasted inside its front cover!)





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E.P. Grondine
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« Reply #18 on: December 16, 2008, 08:36:54 AM »

http://www.theprogressortimes.com/news/articles.asp?articleID=10335

A well excavated and well dated one inch thick layer of impact products near Sandusky, Ohio:

Did extraterrestrial event alter the course of history?

BY DAN REINHART

For years Sheriden Cave, west of Carey, has been recognized as one of the foremost archaeological sites in the Americas, if not the world. At the cave scientists have unearthed extinct animal species and artifacts that have been undisturbed since the last ice age.

Recently, however, excavations by Dr. Ken Tankersley, an archaeologist from the University of Cincinnati, have uncovered evidence that indicate an extraterrestrial event some 13,000 years ago may have permanently altered the course of history in the Americas and possibly the whole world. As a result the cave will be featured in several upcoming documentaries on the Discovery Channel and the History Channel.

"The most interesting county."

"Wyandot County is the most interesting county in Ohio," Tankersley told a group gathered at Woody's restaurant in Upper Sandusky Dec. 4. Tankersley was the guest speaker at the "First Citizens Presents" breakfast and he has appeared in documentaries on a host of television channels including PBS, Discovery, National Geographic, Animal Planet and others. He also worked on a film with the late Steve Irwin.

Tankersley said that besides being shaped in a square because it was the last Indian reservation in the State of Ohio, Wyandot County also contains, at Sheriden Cave, a "complete, uninterrupted archaeological sequence spanning the 13,000 years since the last ice age."

Tankersley said he first became interested in the area in the early 1990s. He was in New York at the time and a friend who was doing some work at Sheriden Cave told him that excavations there had uncovered fossils from a number of extinct species – including the short-faced bear – that previously had never been found in the State of Ohio.

National attention.

Excavation at the cave also uncovered a flaked stone artifact that was dated back some 13,000 years to an ancient people known as the Clovis culture. Tankersley said that although there are other Clovis sites in the world, Sheriden Cave is the only site where animal fossils can be found right alongside the flaked stone tools ancient people of the same time period made. For that reason Sheriden Cave became a major archaeological discovery.

Tankersley said he originally became involved in Sheriden Cave excavations because remnants of an ancient peccary had been found there. He came to look at the site and after finding a number of artifacts he wrote to the National Science Foundation who, with the help of the Hendricks family, who own the cave, agreed to sponsor an excavation there in 1996.

Tankersley eventually found a number of bones that had been carved into tools and a fluted Clovis point among the remains of various extinct animals. He noted that some of the ancient bones found in Sheriden Cave are fresher than you might find on a modern road-kill. "It's absolutely incredible," he said. "They're abundant and very well preserved."

The Black Mat.

As the excavations continued workers began to uncover a lot of burnt bones. Tankersley said that at first no one paid very much attention to them but eventually questions were raised about how the bones got burned. He said it was obvious that if primitive man had cooked an animal so much that the bones were burned, no one would have wanted to eat the meat. They concluded that the primitive people must have thrown the bones in the fire after they were done eating. But there was no evidence of hearths in the cave. "Why were these animal bones so severely burned?" Tankersley asked.

As excavators searched for an answer to the burnt bones they began to notice an inch-thick layer of earth in the sediment throughout the cave that was black. Scientists were able to obtain 30 radiocarbon dates that indicated the layer of burned material, or "Black Mat," was about 13,000 years old. It dated to about the same time period that Clovis man and many of the mega-beasts disappeared. (The radiocarbon dates have made Sheriden Cave one of only 12 securely dated Clovis sites in the world.)

A new theory takes shape.

With the help of a man named Alan West, Tankersley found that Black Mat layers have been discovered in other late Ice Age sites across the country from the Carolinas to Texas and even into Canada. In each instance the Black Mat of burnt material dates back to the same time period. Furthermore, the Black Mats contain an abundance of micrometeorites. Tankersley said that soil from the Black Mat in Sheriden Cave contains so many magnetic, microscopic meteorites that he can wave a child's magnet across samples of the soil and cover the magnet with them.

Tankersley took the Black Mat material to the University of Cincinnati and magnified it 10,000 times through an electron microscope. He found it was also filled with microscopic "detonation diamonds." He said the majority of the (microscopic) diamonds in the Black Mat are extraterrestrial.

Tankersley pointed out that when asteroids and meteorites explode over the earth they create diamonds. He says the ones at Sheriden Cave are either directly from objects from outer space or they are the result of a major explosion over the earth – like a comet exploding over organic material that compressed it and made diamonds. Tankersley said it is increasingly likely that an asteroid or meteor is the reason for the disappearance of the Clovis people and the mega-beasts 13,000 years ago.

Tankersley said the evidence indicates that the catastrophic event may not have wiped out Clovis man and the mega mammals completely, but life definitely changed and creatures that survived the event had to find a way to exist in a changed environment. For example, there wasn't a lot of food around and since the mega mammals required a lot of food to survive, they had to adapt or die. He said some of the mega mammals became smaller.

Although evidence indicates that an asteroid created the Black Mat, no one has ever found a crater to prove where the event originated. Some scientists believe that Hudson Bay may actually be the crater.

13,000 years later.

Tankersley said that the implications for us in the 21st century are sobering in that the impact of another history-altering asteroid with earth is not a question of "if" it will happen, but "when" it's going to happen next.

Tankersley said that some of the people from Wyandot County who made his work at Sheriden Cave possible include Keith Hendricks and his father Richard, Kate Orians who wrote a number of stories about Tankersley and his work for The Progressor-Times and Dale Stansbery of the Ohio Archaeological Council.

Tankersley also noted that the latest discoveries made at Sheriden Cave will be featured in a film on the Discovery Channel in December and another film on the History Channel this spring.

E.P. Grondine
Man and Impact in the Americas
(Hundreds of pages of small type filled with typos, not enough illustrations, and as if this were not enough,
a correction sheet pasted inside the cover of every signed copy. Write me off list for signed copies at a special
low price.)
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trehinp
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« Reply #19 on: January 05, 2009, 04:22:42 AM »

More info on this, perhaps...

Quote
Six North American Sites Hold 12,900 Year-old Nanodiamond-rich Soil
Source: University of Oregon    28-Dec-2008
Newswise — Abundant tiny particles of diamond dust exist in sediments dating to 12,900 years ago at six North American sites, adding strong evidence for Earth’s impact with a rare swarm of carbon-and-water-rich comets or carbonaceous chondrites, reports a nine-member scientific team.
Click here for more

I hope this will help the debate...

Yours.

Paul
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Paul Trehin
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« Reply #20 on: January 06, 2009, 12:55:47 PM »

The debate? Note Tankersley's site above.

Note the difference between the public reporting of Firestone and Kenneth's work, versus the lack of news stories on
Tankersley's excavations.

The politics of impact research have been and are strange. In the US, research money and publication was controlled by Dr. David Morrison, a pioneering impact researcher, who has rather tenaciously held that asteroids hit 95%, and comets hit 5%. Thus work on the recent comet impacts was limited.

Firestone had an independent source of funding, and published through geological channels, hence the work on comet impact got done.

The archaeological community itself has been resistant to the idea of recent comet and asteroid impacts. Why this is
is fascinating in and of itself, and perhaps it is better explained by sociology and psychology. Archaeologists had earlier come up with other explanations for discontinuities, including the mega-fauna extinction, and will hold to them even if new definitive data comes in. Peoples' early accounts of these were dismissed as myths.

Psychologically, massive numbers of deaths from asteroid and comet impact is a tough thing to accept.

E.P. Grondine
Man and Impact in the Americas (not too bad a book - hundreds of pages of small type filled with typos, not enough pictures, and a correction sheet pasted inside its front cover.)






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AWSX
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« Reply #21 on: January 09, 2009, 10:25:23 AM »

Spherules seem to be turning up everywhere. This discovery from the Greenland icecore seems to indicate an impact in 536AD at the start of the Dark Ages. http://www.agu.org/cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm08&database=%2Fdata%2Fepubs%2Fwais%2Findexes%2Ffm08%2Ffm08&maxhits=200&=%22PP41B-1454%22
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E.P. Grondine
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« Reply #22 on: January 09, 2009, 10:13:00 PM »

Spherules seem to be turning up everywhere. This discovery from the Greenland icecore seems to indicate an impact in 536AD at the start of the Dark Ages. http://www.agu.org/cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm08&database=%2Fdata%2Fepubs%2Fwais%2Findexes%2Ffm08%2Ffm08&maxhits=200&=%22PP41B-1454%22

Impacts were not suspected earlier, but rather simply a cometary dust veil from Comet Encke. David Keys attributed the climate collapse to volcanism, but that did not seem to work:
http://abob.libs.uga.edu/bobk/ccc/ce082202.html 
- my 2002 impossibly convoluted survey of impossibly convoluted times

The climate collapse ended Hopewell Hopewell in North America - the survivors assimilated with the Algonquin stream of the Shawnee people, who were forced down from the north by this.

E.P. Grondine
Man and Impact in the Americas
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« Reply #23 on: March 20, 2009, 11:23:03 PM »

Hi all -

The prediction was:
http://www.dispatch.com/live/content/local_news/stories/2008/07/21/comet.ART_ART_07-21-08_B1_P5APQ1P.html

and a local person spotted this:
http://www.meridianbooster.com/ArticleDisplay.aspx?e=1484183

Is it one of the main impact points? we'll see...

E.P. Grondine
Man and Impact in the Americas
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« Reply #24 on: March 26, 2009, 03:21:22 PM »

Hello everyone -

For a while, objections were raised that the spherules and nano-diamonds were just normal
accumulations around "wadis" of meteoritic entry produts. This "rationalization" (and rationalization it was,
as nano-diamonds are not regularly produced by simple meteorite entry) had now been put to an end:

http://www.pbs.org/wgbh/nova/clovis/

with the recovery of well dated impactites from otherwise sterile Greenland ice deposits:
http://www.pbs.org/wgbh/nova/clovis/

What really happened? Well, here are some of the first people's accounts:

http://forum.palanth.com/index.php/topic,1093.0.html

E.P. Grondine
Man and Impact in the Americas (despite all of its flaws, a pretty all right book, in my own opinion).

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E.P. Grondine
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« Reply #25 on: March 26, 2009, 08:06:17 PM »

NOVA also has this summary of the debate:


E.P. Grondine
Man and Impact in the Americas
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E.P. Grondine
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« Reply #26 on: September 03, 2009, 02:46:27 PM »

Via Leroy Ellenberger...

History Channel has premiered a subject program about impacts on Earth from meteors,
asteroids, comets and space debris:

 <http://www.history.com/shows.do?action=detail&episodeId=481956>

The program will be re-broadcast Sunday, Sept. 6 at 7 p.m.
EDT, Tuesday, Sept. 15 at 8 p.m. EDT and Wed. Sept. 16
at midnight EDT. Check your local schedule.

...
...A surprising subject was the work of Ohio archaeologist Ken Tankersley (Kent State Univ.)
at Sheriden Cave in Ohio where he and his team have been excavating remains of
Pleistocene mega-fauna and Clovis artifacts from the horizon at 12,900 B.P.

The FACT of the Younger-Dryas impact at this time was practically implicit in the program.
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Jacques Cinq-Mars
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« Reply #27 on: September 05, 2009, 11:22:14 PM »

Via Leroy Ellenberger...

History Channel has premiered a subject program about impacts on Earth from meteors,
asteroids, comets and space debris:

 <http://www.history.com/shows.do?action=detail&episodeId=481956>

The program will be re-broadcast Sunday, Sept. 6 at 7 p.m.
EDT, Tuesday, Sept. 15 at 8 p.m. EDT and Wed. Sept. 16
at midnight EDT. Check your local schedule.

...A surprising subject was the work of Ohio archaeologist Ken Tankersley (Kent State Univ.)
at Sheriden Cave in Ohio where he and his team have been excavating remains of
Pleistocene mega-fauna and Clovis artifacts from the horizon at 12,900 B.P.

The FACT of the Younger-Dryas impact at this time was practically implicit in the program.

Thanks for passing this on. I only have one question about the "FACT" you mention. Yes, but so what?
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E.P. Grondine
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« Reply #28 on: September 06, 2009, 03:39:53 PM »

Thanks for passing this on. I only have one question about the "FACT" you mention. Yes, but so what?

A pleasure to pass it on, Jacques, and thank you for keeping the topic open for discussion even when the hypothesis was widely condemned and ridiculed. The FACT wording was Leroy Ellenbreger's comment; he's been at this longer than I have, so you can imagine his relief.

"Yes, but so what?"  At this point, I'm too tired to say. What do you think?

E.P. Grondine
Man and Impact in the Americas
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« Reply #29 on: October 13, 2009, 04:09:48 PM »

The effect in Europe and South America:

2009 FALL AGU San Francisco, CA
Field-Analytical approach of land-sea records for elucidating the Younger Dryas Boundary syndrome
SECTION/FOCUS GROUP: Paleoceanography and Paleoclimatology (PP)
SESSION: Younger Dryas Boundary: Extraterrestrial Impact or Not? (PP15)
AUTHORS (FIRST NAME, LAST NAME): Thierry Ge1, MARIE-AGNES MICHELE COURTY2, Francois Guichard3
INSTITUTIONS (ALL):
1. Geoarcheology, INRAP, Pessac, France.
2. Prehistory -IPHES-ICREA, CNRS-MNHN, Tarragona, Spain.
3. Paleoocenography, CNRS-CEA UVSQ, Gif-sur-Yvette, France.

Linking lonsdaleite crystals, carbon spherules and diamond polymorphs from the North American dark layers at 12.9 cal yr B.P. to a cosmic event has questioned the nature and timing of the related impact processes. A global signal should trace the invoked airshocks and/or surface impacts from a swarm of comets or carbonaceous chondrites.

Here we report on the contextual analytical study of debris fall events from three reference sequences of the Younger Dyras period (11-13 ka cal BP):

(1) sand dune fields along the French Atlantic coast at the Audenge site;
(2) A 10 m record of detrital/bioorganic accumulation in the southern basin of the Caspian Sea with regular sedimentation rate (0.1 to 3 mm per year) from 14 to 2-ka BP cal;
(3) the Paijan sequence (Peruvian coastal desert) offering fossiliferous fluvial layers with the last large mammals and aquatic fauna at 13 ka BP sealed by abiotic sand dunes.

The three sequences display one remarkable layer of exogenous air-transported microdebris that is part of a complex time series of recurrent fine dust/wildfire events. The sharp debris-rich microfacies and its association to ashes derived from calcination of the local vegetation suggest instantaneous deposition synchronous to a high intensity wildfire. The debris assemblage comprises microtektite-like glassy spherules, partly devitrified glass shards, unmelted to partly melted sedimentary and igneous clasts, terrestrial native metals, and carbonaceous components. The later occur as grape-clustered polymers, vitrified graphitic carbon, amorphous carbon spherules with a honeycomb pattern, and green carbon fibres with recrystallized quartz and metal blebs. Evidence for high temperature formation from a heterogeneous melt with solid debris and volatile components derived from carbonaceous precursors supports an impact origin from an ejecta plume. The association of debris deposition to total firing would trace a high energy airburst with surface effects of the fireball. In contrast, microfacies and debris composition of the recurrent fine dust/wildfire events would trace a series of a low energy airburst. Their record is expressed in the Audenge sequence by a series of water-laid laminae of charred pine residues formed of carbonaceous spherules wrapped by carbonaceous polymers that includes lonsdaleite crystals as detected by high resolution in situ micro-Raman analysis. This association suggests recurrent flash forest wildfires ignited by hot spray of carbon-rich debris, followed by heavy snow falls. The record from the Peruvian desert suggests a possible linkage between the repeated debris fall/wildfires during the Younger Dryas and the following irreversible aridity along the Peruvian cost. In contrast the Caspian record of the Younger Dryas period indicates more gradual changes, possibly buffered by the hydrological functioning of the Caspian sea in a complex region. The Audenge context offers the amplified signal needed to understand at local to global scales the spatio-temporal pattern of impact-airburst events.

KEYWORDS: [4901] PALEOCEANOGRAPHY / Abrupt/rapid climate change, [1029] GEOCHEMISTRY / Composition
of aerosols and dust particles, [4924] PALEOCEANOGRAPHY / Geochemical tracers, [5420] PLANETARY
SCIENCES: SOLID SURFACE PLANETS / Impact phenomena, cratering.
Previously Presented Material: Original results, never presented, never published
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