Airbursts/impacts by a fragmented comet or asteroid have been proposed at the Younger Dryas onset (12.80 ± 0.15 ka) based on identification of an assemblage of impact-related proxies, including microspherules, nanodiamonds, and iridium. Distributed across four continents at the Younger Dryas boundary (YDB), spherule peaks have been independently confirmed [...]
ABSTRACT Intersection with the debris of a large (50-100 km) short-period comet during the Upper Palaeolithic provides a satisfactory explanation for the catastrophe of celestial origin which has been postulated to have occurred around 12900 BP, and which pre-saged a return to ice age conditions of duration 1300 years. The Taurid Complex appears to [...]
Newton’s Great Comet of 1680
Update: A couple of useful links and a popular article on the subject.
I just learned of the discovery of Comet ISON which has apparently electrified the astronomy world for months. What then caught my eye was a paper from David Eichler of Ben Gurion University published just [...]
iPaper_embed(’106210252′, ‘key-2i68bycjgm0wdjsmqc1j’, ’600′, ’450′); 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 [...]
Rod Chilton of BCC Climate has a guest post on the Younger Dryas over at Watts Up With That that is lighting up the boards, and bringing some welcome new attention to our subject. It also seems that blog force Anthony Watts has taken an interest in the Younger Dryas Boundary Event, having posted three times [...]
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 [...]
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
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 [...]