Acid rain, Siberian Traps, and Permian Extinction
Acid raid, ozone depletion contributed to ancient extinction
Carnegie Institution of Washington News, November 20, 2013
http://carnegiescience.edu/news/acid_raid_ozone_depletion_contributed_ancient_extinction
Base of the Siberian Traps volcanic sequence
https://carnegiescience.edu/kotuy_river and https://carnegiescience.edu/kotuy_river_2
A possible cause of the end-Permian mass extinction: Lemon
juice? MIT researchers find that rain as acidic as lemon juice
may have contributed to massive die-offs on land 252 million
years ago. Massachusetts Institute of Technology News
Nov. 25, 2013, http://web.mit.edu/newsoffice/2013/permian-acid-rain-extinction-112513.html
The paper is:
Black, B. A., J.-F. Lamarque, C. A. Shields, L. T. Elkins-
Tanton and J. T. Kiehl, 2013, Acid rain and ozone depletion
from pulsed Siberian Traps magmatism. Geology. (advance
online publication) doi: 10.1130/G34875.1http://geology.gsapubs.org/content/early/2013/11/21/G34875.1.abstract
A related article:
The Permian Extinction—When Life Nearly Came to an
End by Hillel J. Hoffman, National Geographic Magazine
http://science.nationalgeographic.com/science/prehistoric-world/permian-extinction/
Yours,
Paul H.
