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September 10, 2013

NatGeo actually calls Wally Broecker to discuss evidence for cosmic impact at Younger Dryas start

NatGeo 2007 NatGeo 2008 NatGeo 2013 Did a Comet Really Kill the Mammoths 12,900 Years Ago? Did the planetary upheaval 12,900 years ago come from the heavens—or Earth? Robert Kunzig National Geographic Published September 10, 2013 Why did mammoths, mastodons, and other mega-beasts vanish from North America? Was it because: 1) humans killed them; 2) they couldn’t hack the climate after the…

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Random Tusks

August 10, 2013

WikiLies: Skeptical Raptor squelches science

The accuracy of information concerning the YDB event on the Wikipedia has always suffered from the dominance of a moderator describing himself as “Skeptical Raptor.” Watching the Raptor do his wiki-work has taught the Tusk that cynicism has few bounds — and the truth has few friends (that stay up that late at night). The Raptor constantly cleanses the public’s Wiki of any…

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Random Tusks

July 25, 2013

But seriously, folks: Harvard bangs a big fat Platinum nail in YDB critic coffin

BBC The Mail Phys.org Crickets Stein B. Jacobsen? and here and here Program Note: More recent posts can be found below Large Pt anomaly in the Greenland ice core points to a cataclysm at the onset of Younger Dryas The impact hypothesis (11), once declared dead (12, 13), recently gained new support from the discovery of siliceous scoria-like objects (SLOs) with global distribution, which…

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Random Tusks

March 2, 2013

Younger Dryas Event in California

One of the most intense debates in the paleosciences in recent years has focused on the question of whether or not a cosmic impact (comet) approximately 12,900 years ago caused both the Younger Dryas climatic oscillation and the disappearance of Pleistocene megaauna in North America. Since it was frst advanced in print by Firestone et al. (2007), the Younger Dryas Boundary (YDB) impact…

548

Random Tusks

February 18, 2013

Steamed: Ted Bunch From the Heart On Boslough and Scott

This afternoon former NASA geochemist Ted Bunch dropped the Tusk the note below. It is thrilling to see a core YDB researcher with a five decade track record [and here] willing to stand up to his bullies in frank and personal terms, outside the stilted literature and self-serving press releases. The recent Boslough et al. paper and coordinated press releases are insulting to Dr. Bunch.

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Random Tusks

May 18, 2012

Dutch Diamonds Demand Extraordinary Explanations

The Aalsterhut / Hut van Mie Pils The recent paper from van Hoesel et al., Nanodiamonds and wildfire evidence in the Usselo Horizon postdate the Allerød-Younger Dryas Boundary, confirming nanodiamonds in the Dutch Younger Dryas Boundary (YDB), or Usselo Horizon, establishes a cynical new low for the intellectual integrity of our debate. Despite confirmation of this extraordinary material in the…

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Random Tusks

March 15, 2012

YDB Co-Author Profile: Paul S. DeCarli

Paul DeCarli Nick Pinter claims here that diamonds were misidentified in earlier YDB studies. The paper this month was Paul DeCarli’s first formal appearance with the YDB team but his presence as a co-author undermines Pinter’s accusation. DeCarli is a diamond pro. And more importantly he is an eager scientist more given to discovery than criticism. I have seen the old fellow out…

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Random Tusks

February 5, 2012

Seek and Ye Shall Find: ET material confirmed in Murray Springs Black Mat

At the end of the Pleistocene a Younger Dryas black mat was deposited on top of the Pleistocene sediments in many parts of North America. A study of the magnetic fraction (~10,900±50 B.P.) from the basal section of the black mat at Murray Springs, AZ revealed the presence of amorphous iron oxide framboids in a glassy iron-silica matrix. These framboids are very similar in appearance and…

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Random Tusks

December 4, 2011

Trust but Verify: Independent confirmations of the Younger Dryas Impact Boundary

Skeptics of the YDIB hypothesis frequently state that “no one can reproduce the YDIB results” (Kerr, 2010); “nobody has found anything” (Kerr, 2010); there is a “lack of reproducibility of data” (Holliday, 2011); and “unique peaks in concentrations at the YD onset have yet to be reproduced” Pinter (2011). These casual dismissals are hurtful to the investigation, demonstrably false…

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Random Tusks

June 28, 2011

Skeptic Speaks: A Personal Essay from Vance Holliday on the Clovis Comet

Vance Holliday Vance Holliday was thoughtful to give the Tusk a heads up on his essay first published here at the Argonaut. I have not read it throughly enough to respond myself right now, but I am certain of this: One or more of the dozen key researchers from the other side of the debate should write something similar. His tender tale of woe and misunderstanding is exceeded only by their…

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pinter

NatGeo actually calls Wally Broecker to discuss evidence for cosmic impact at Younger Dryas start

WikiLies: Skeptical Raptor squelches science

But seriously, folks: Harvard bangs a big fat Platinum nail in YDB critic coffin

Younger Dryas Event in California

Steamed: Ted Bunch From the Heart On Boslough and Scott

Dutch Diamonds Demand Extraordinary Explanations

YDB Co-Author Profile: Paul S. DeCarli

Seek and Ye Shall Find: ET material confirmed in Murray Springs Black Mat

Trust but Verify: Independent confirmations of the Younger Dryas Impact Boundary

Skeptic Speaks: A Personal Essay from Vance Holliday on the Clovis Comet

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