PNAS Archives - The Cosmic Tusk

July 28, 2015

New Paper: Younger Dryas Boundary impact date constrained within 100 years

UCSB press release Daily Mail Red Orbit Tusk regular Garcia makes hurculean effort on WUWT Paper below in response to ham-handed 2014 attack from Meltzer – Holliday [wonderplugin_pdf src=”https://cosmictusk.com/wp-content/uploads/kennett-and-kennett.pdf” save=”1″] Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P.

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Random Tusks

September 3, 2013

Two Ivies in two months confirm YD impact: Pinter of Southern Illinois - Carbondale to NBC: "Fringe science," questions integrity of National Academy of Sciences

A meteor or comet impact near Quebec heaved a rain of hot melted rock along North America’s Atlantic Coast about 12,900 years ago, a new study claims. Scientists have traced the geochemical signature of the BB-sized spherules that rained down back to their source, the 1.5-billion-year-old Quebecia terrane in northeastern Canada near the Gulf of Saint Lawrence. At the time of the impact, the…

528

Random Tusks

September 19, 2012

Breaking: Ducks join Gamecocks with press release calling out Surovell, et al. 2009

Today’s press release from the University of Oregon complimenting yesterday’s from the University of South Carolina. Surovell, et. al 2009 has another serious challenge here. Challengers to Clovis-age impact theory missed key protocols, new study finds EUGENE, Ore. — (Sept. 18, 2012) — An interdisciplinary team of scientists from seven U.S. institutions says a…

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Random Tusks

September 18, 2012

PNAS: Five-Year study rips spear from back of YDB hypothesis

https://cosmictusk.com/wp-content/uploads/Independent-evaluation-of-conflicting-microspherule-results-from-different-investigations-of-the-Younger-Dryas-impact-hypothesis.pdf Working on getting the paper. [Update: Got it above} This appears to be the long hoped for independent, intentional, blind, professional and reproducible confirmation of the original 2007 findings of the…

630

Random Tusks

June 26, 2012

Another informative blog!?!

I came across a well-researched and informative blog today summing up the recent findings and YDB science to date. I was so impressed by Abby Tabor’s post at Science Works Now, “New Evidence for Climate-Changing Cosmic Impact,” I have added a permanent link to her on the side-bar. Tabor it seems was driven — shudder — to actually contact the authors on each side of…

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Random Tusks

June 18, 2012

Finally Available in PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Impacts Airbursts 12,900 years ago

These scientists have identified three contemporaneous levels more than 12,000 years ago, on two continents yielding siliceous scoria-like objects (SLO’s),” said H. Richard Lane, program director of National Science Foundation’s Division of Earth Sciences, which funded the research. “SLO’s are indicative of high-energy cosmic airbursts/impacts, bolstering the contention that these events…

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Random Tusks

June 14, 2012

Very High Temp Impact Melt Products at 12.9 ka: The PNAS Abstract

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Random Tusks

June 13, 2012

Kerr on Limb: Science writer misleads peeps in public post

Distinguished Science writer Dr. Richard Kerr walked the plank this afternoon in response to this morning’s Knight Science Journalism Tracker inquiry of science writers. Charles Petit’s casual post brought quick attention from the old-school dean of science writing. Kerr implored his press colleagues to, in effect: Move on, move on…There is nothing to see here. See here: I…

668

Random Tusks

June 11, 2012

PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Airbursts/Impacts at Younger Dryas

Well, well. A cat just leapt from the bag. I don’t have an “as published” copy yet (despite being a co-author). But I will post one just as soon as I do. See here for UCSB Press Release: Study Jointly Led by UCSB Researcher Finds New Evidence Supporting Theory of Extraterrestrial Impact These scientists have identified three contemporaneous levels more than 12,000 years…

486

Random Tusks

March 31, 2012

YDB impact researchers cite confirmations in recent PNAS paper

The PNAS paper has a helpful bibliography of recent publications supportive of the hypothesis. It’s worth a separate block quote below. Nice how the links take you to the cites themselves at the PNAS website. “Some independent workers have been unable to reproduce earlier YDB results for MSp, CSp, and NDs (6⇓–8), as summarized in a “News Focus” piece in Science (9)…

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PNAS

New Paper: Younger Dryas Boundary impact date constrained within 100 years

Two Ivies in two months confirm YD impact: Pinter of Southern Illinois - Carbondale to NBC: "Fringe science," questions integrity of National Academy of Sciences

Breaking: Ducks join Gamecocks with press release calling out Surovell, et al. 2009

PNAS: Five-Year study rips spear from back of YDB hypothesis

Another informative blog!?!

Finally Available in PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Impacts Airbursts 12,900 years ago

Very High Temp Impact Melt Products at 12.9 ka: The PNAS Abstract

Kerr on Limb: Science writer misleads peeps in public post

PNAS: Very High Temperature Impact Melt Products: Evidence for Cosmic Airbursts/Impacts at Younger Dryas

YDB impact researchers cite confirmations in recent PNAS paper

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