Paper About Using Extraterrestrial Impacts to Explain Mass Extinctions
Below is a recent paper about the evaluation of extraterrestrial
impacts in mass extinctions, which I found both thoughtful and
an interesting read.
Racki, G., 2011, The Alvarez impact theory of mass extinction;
limits to its applicability and the “great expectations syndrome”
Acta Palaeontologica Polonica, vol. 57, no. 4, pp. 681–702.
http://www.app.pan.pl/article/item/app20110058.html
http://www.bioone.org/doi/abs/10.4202/app.2011.0058
PDF file at:
http://www.app.pan.pl/archive/published/app57/app20110058.pdf
Yours,
Paul H.