[meteorite-list] More Evidence Permian - Triassic Extinction Not Caused by Extraterrestrial Impact

[Paul H.]

As time goes on, more and more evidence that the 
Triassic - Permian extinction was not caused by an 
extraterrestrial impact seems to be accumulating. 
 
Go see:

Geochemical analysis of Chinese rocks used to better 
understand the Permian-Triassic mass extinction 
by Greg Hand, Physorg, October 16, 2012
http://phys.org/news/2012-10-geochemical-analysis-chinese-permian-triassic-mass.html

Tropical Collapse in Early Triassic Caused by Lethal 
Heat: Extreme Temperatures Blamed for 'Dead Zone'
ScienceDaily, October, 18, 2012)
http://www.sciencedaily.com/releases/2012/10/121018141844.htm

Early Triassic's Stifling Heat Made Earth Hostile to 
Life, Scientists Say by Jenny Marder, October 18, 2012
http://www.pbs.org/newshour/rundown/2012/10/-some-250-million-years.html

Permian-Triassic Extinction Event May Have Been 
Driven By Extreme Warming, Huffington Post,
http://www.huffingtonpost.com/2012/10/18/permiantriassic-extinction-event_n_1981835.html

The papers are:

Sun, Y., M. M. Joachimski, P. B. Wignall, C. Yan, Y. Chen, 
H. Jiang, L. Wang, and X. Lai, 2012, Lethally Hot 
Temperatures During the Early Triassic Greenhouse. 
Science. vol. 338, no. 6105, pp. 366-370
http://www.sciencemag.org/content/338/6105/366

Also, there is the below commentary:

Bottjer, D. J., 2012, Life in the Early Triassic Ocean.
Science. vol. 338, no. 6105, pp. 336-337
http://www.sciencemag.org/content/338/6105/336.summary

Best wishes,

Paul H.