Volcanoes and Asteroid Impact Linked to K-Pg Mass Extinction ??

Volcanoes and Asteroid Impact Linked to K-Pg Mass Extinction ??

Warming pulses in ancient climate record link volcanoes,
asteroid impact and dinosaur-killing mass extinction,
University of Michigan, July 5, 2016
http://phys.org/news/2016-07-pulses-ancient-climate-link-volcanoes.html
http://ns.umich.edu/new/releases/24010-warming-pulses-in-ancient-climate-record-link-volcanoes-asteroid-impact-and-dinosaur-killing-mass-extinction

The open-access paper is:

Petersen, S. V., A. Dutton, and K. C. Lohmann, 2016, End-
Cretaceous extinction in Antarctica linked to both Deccan
volcanism and meteorite impact via climate change. Nature
Communications 7, Article number: 12079 doi:10.1038/ncomms12079
Received 31 December 2015 Accepted 27 May 2016 Published 05 July 2016
http://phys.org/journals/nature-communications/

A related open-access paper is:

Witts, J. D., R. J. Whittle, P. B. Wignall, J. A. Crame, J. E. Francis,
R. J. Newton, and V, C. Bowman, 2016, Macrofossil evidence
for a rapid and severe Cretaceous–Paleogene mass extinction
in Antarctica. Nature Communications 7, Article number: 11738
doi:10.1038/ncomms11738 Received 17 August 2015
Accepted 26 April 2016 Published 26 May 2016
http://www.nature.com/ncomms/2016/160526/ncomms11738/full/ncomms11738.html

Yours,

Paul