New Younger Dryas Impact Hypothesis Paper
There is a new Younger Dryas Impact hypothesis paper. It is;
Kennett, J. P., D. J. Kennettb, B. J. Culleton, and many others,
2015, Bayesian chronological analyses consistent with
synchronous age of 12,835–12,735 Cal B.P. for Younger
Dryas boundary on four continents. Proceedings of the
National Academy of sciences of the United States.
Early Edition, James P. Kennett, doi: 10.1073/pnas.1507146112
Some comments about it:
From the Journal of Younger Dryas Impact Hypothesis Studies
Musings on Quantitative Palaeoecology, by Richard Telford
Another article of his is “Platinum spikes extra-terrestrial
impact as initiator of Younger Dryas Posted on 24/07/2013”
There is an another paper, which found that the environmental
changes that mark the beginning of the Younger Dryas are
diachronous in their time of occurrence according to latitude.
Along latitude 56–54°N, they ocurred as early as c. 12,900–13,100 cal. BP,
while further north they ocurred at c. 12,600–12,750 cal. BP.
This paper is:
Muschitiello, F., and B. Wohlfarth, 2015, Time-transgressive
environmental shifts across Northern Europe at the onset of
the Younger Dryas. Quaternary Science Reviews. 109:49–56.