PNAS

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   Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents Significance A cosmic impact event at ∼12,800 Cal […]

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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 […]

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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 disregard of […]

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

  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 Younger Dryas Boundary team. Independent evaluation of conflicting microspherule results from different investigations of the Younger Dryas impact hypothesis Malcolm A. LeComptea,1, Albert […]

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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 — […]

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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 induced the beginning of […]

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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 […]

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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 […]

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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 evidence from Central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis

  NOTE:  This post will be “stuck” to the top of the page for the time being. Related new material such as news articles and observations will be blogged subsequent to this post but will appear below. The old “Drudge Siren” is getting quite a 1st quarter work out. And from what I hear it […]

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