Earlier GSA abstract
Co-author spotlight: Andrew S. Madden
Carter, Simms, Benamara….
PNAS Lexus lane? 46,000 hits!
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 [...]
Annelies Van Hoesel (Dr. Van Hoesel yet?) recently published an overview of Younger Dryas Boundary Hypothesis in Quaternary Science Reviews. I hear at least one of the YDB authors found it terribly biased against the impact. But it seems to me that she is implicitly admitting that the many obituaries of the YDB impact have [...]
But why not France, Bos!?
The news release
Independent investigators have failed to confirm the reports of enhanced concentrations of spherules and platinum-group elements in YD boundary sediments.
Boslough, Surovell et al., January 30, 2013, Arguments and Evidence Against a Younger Dryas Impact Event
Interhemispheric evidence of a cosmic impact [...]
Obviously, this whole “salting” thing from The Bos has got me hopping mad — and for good reason.
By implying that the sites were “salted,” The Bos raises the issue of fraud or conspiracy surrounding the modern date he got on his YDB carbon spherule from Gainey, Michigan. But there’s a problem with that [...]
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 [...]
iPaper_embed(’97093364′, ‘key-gyjq9i21u3xuv5o3x6y’, ’600′, ’450′);
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 [...]