Acid rain and ozone depletion from pulsed siberian traps magmatism

Benjamin A. Black, Jean François Lamarque, Christine A. Shields, Linda Elkins-Tanton, Jeffrey T. Kiehl

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The Siberian Traps fl ood basalts have been invoked as a trigger for the catastrophic end- Permian mass extinction. Widespread aberrant plant remains across the Permian-Triassic boundary provide evidence that atmospheric stress contributed to the collapse in terrestrial diversity. We used detailed estimates of magmatic degassing from the Siberian Traps to complete the fi rst three-dimensional global climate modeling of atmospheric chemistry during eruption of a large igneous province. Our results show that both strongly acidic rain and global ozone collapse are possible transient consequences of episodic pyroclastic volcanism and heating of volatile-rich Siberian country rocks. We suggest that in conjunction with abrupt warming from greenhouse gas emissions, these repeated, rapidly applied atmospheric stresses directly linked Siberian magmatism to end-Permian ecological failure on land. Our comprehensive modeling supplies the fi rst picture of the global distribution and severity of acid rain and ozone depletion, providing testable predictions for the geography of end-Permian environmental proxies.

Original languageEnglish (US)
Pages (from-to)67-70
Number of pages4
JournalGeology
Volume42
Issue number1
DOIs
StatePublished - Jan 2014
Externally publishedYes

Fingerprint

ozone depletion
acid rain
magmatism
Permian
Permian-Triassic boundary
large igneous province
atmospheric chemistry
mass extinction
country rock
degassing
global climate
volcanism
climate modeling
greenhouse gas
volcanic eruption
warming
basalt
ozone
heating
prediction

ASJC Scopus subject areas

  • Geology

Cite this

Black, B. A., Lamarque, J. F., Shields, C. A., Elkins-Tanton, L., & Kiehl, J. T. (2014). Acid rain and ozone depletion from pulsed siberian traps magmatism. Geology, 42(1), 67-70. https://doi.org/10.1130/G34875.1

Acid rain and ozone depletion from pulsed siberian traps magmatism. / Black, Benjamin A.; Lamarque, Jean François; Shields, Christine A.; Elkins-Tanton, Linda; Kiehl, Jeffrey T.

In: Geology, Vol. 42, No. 1, 01.2014, p. 67-70.

Research output: Contribution to journalArticle

Black, BA, Lamarque, JF, Shields, CA, Elkins-Tanton, L & Kiehl, JT 2014, 'Acid rain and ozone depletion from pulsed siberian traps magmatism', Geology, vol. 42, no. 1, pp. 67-70. https://doi.org/10.1130/G34875.1
Black, Benjamin A. ; Lamarque, Jean François ; Shields, Christine A. ; Elkins-Tanton, Linda ; Kiehl, Jeffrey T. / Acid rain and ozone depletion from pulsed siberian traps magmatism. In: Geology. 2014 ; Vol. 42, No. 1. pp. 67-70.
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