The Cosmic Tusk

January 22, 2014

PNAS: Diamond peak confirmed at YDB -- and Bronze Age collapse, perhaps?

Table 1. Bement video Earlier GSA abstract Co-author spotlight: Andrew S. Madden Carter, Simms, Benamara…. PNAS Lexus lane? 46,000 hits! Significance In 2007, scientists proposed that the start of the Younger Dryas (YD) chronozone (10,900 radiocarbon years ago) and late Pleistocene extinctions resulted from the explosion of a comet in the earths atmosphere. The ET event, as it is…

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Random Tusks

January 21, 2014

Modern Chinese data fits ancient Chinese records: 8th Century event...comet

A comet collided with the Earth’s atmosphere from the Constellation of Orion on 17 Jan AD 773 with coma stretched across the whole sky and disappeared within one day with ‘dust rain’ in the daytime. — Old Tang Dynasty Book BBC…

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January 19, 2014

Dutch Crutch: Kloosterman hits field with pit sticks

At home with Han The Tusk has no greater admiration than our’s for Han Kloosterman. The Dutch geologist is a truly indefatigable prospector for the truth. Han has had some recent success in his decades long effort to describe the unique nature of his local expression of the Younger Dryas Boundary, his beloved Usselo Layer. Apparently, he has discovered two additional regional expressions of…

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January 3, 2014

Oceans to Ice: Marine diatoms found in Greenland ice suggests pummeled planet in 530's AD

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January 1, 2014

Andes to Alps: Mahaney et al. field evidence confirms cosmic cause for Black Mat from 10,000 BC

Wrote the book Recent Developments in the Analysis of the Black Mat Layer and Cosmic Impact at 12.8 ka Bibs and Bios: William C. Mahaney, Leslie Keiser, David H. Krinsley, Allen West!, Randy Dirszowsky, Chris C.R. Allen, Pedro Costa Article first published online: 6 DEC 2013 Geografiska Annaler: Series A, Physical Geography Abstract: Recent analyses of sediment samples from “black mat”…

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December 30, 2013

Loose Goose: The Bos all over the map

Long ago the Tusk noted a fascinating 2010 missive from The Bos concerning the virtue of everyone (else) remaining intellectually flexible. Or, as he put it, having a willingness to “change your mind.” Here is the link and I have copied the text at the bottom. The Bos’ statement has not aged well. I attended his 2009 AGU Session and I shared his admiration of Wally…

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December 25, 2013

Nice Dice?: The Bos disputes Harvard

It is safe to say The Bos is becoming obsessed. Someone please count and let me know, but I believe he has four publications this year seeking to undermine the Younger Dryas Boundary Hypothesis. Over time he has published more than a dozen. Today he is back in PNAS — alone — and in the face of Harvard scientists who independently discovered to their surprise an extraordinary spike…

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December 25, 2013

Merry Christmas from the Cosmic Tusk

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December 20, 2013

Halley's Comet lays waste: Abbott at AGU on the 530's Event

Dallas Abbott Grail Tale? Live Science article Baillie Year Did a 6th Century Comet Bring Global Famine? Evidence from tree rings and ice cores suggest that parts of Europe, Asia and North America saw protracted cooling in the 530’s, which has been linked to drought and famine. Some scientists hypothesize that Halley’s Comet may have caused this, by leaving a dust trail that the Earth…

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December 14, 2013

Broecker to Kunzig: This Deal is Real

Readers will recall the awkwardly titled September post, “NatGeo actually calls Wally Broecker to discuss evidence for cosmic impact at Younger Dryas start.” The Tusk was trying to convey there my astonishment that a thoughtful and thorough article was written on recent advances in the study of the Younger Dryas Boundary. Only later, with very little digging, did I realize this was…

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The archives

PNAS: Diamond peak confirmed at YDB -- and Bronze Age collapse, perhaps?

Modern Chinese data fits ancient Chinese records: 8th Century event...comet

Dutch Crutch: Kloosterman hits field with pit sticks

Oceans to Ice: Marine diatoms found in Greenland ice suggests pummeled planet in 530's AD

Andes to Alps: Mahaney et al. field evidence confirms cosmic cause for Black Mat from 10,000 BC

Loose Goose: The Bos all over the map

Nice Dice?: The Bos disputes Harvard

Merry Christmas from the Cosmic Tusk

Halley's Comet lays waste: Abbott at AGU on the 530's Event

Broecker to Kunzig: This Deal is Real

Archive

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The Younger Dryas Impact Hypothesis: A Guide for the Perplexed: Marc Young provides a six-part counter-gallop