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GSA Annual Meeting in Denver, Colorado, USA - 2016

Paper No. 225-5
Presentation Time: 2:30 PM

SIBERIAN TRAPS SULFUR AND CARBON DEGASSING AND END-PERMIAN CLIMATE FEEDBACKS (Invited Presentation)


BLACK, Benjamin Alexander1, NEELY, Ryan2, LAMARQUE, Jean-Francois3, KIEHL, Jeffrey4, ELKINS-TANTON, Linda T.5, SHIELDS, Christine6, MILLS, Michael2 and BARDEEN, Charles7, (1)Department of Earth and Atmospheric Sciences, CUNY City College and CUNY Graduate Center, 160 Convent Avenue, New York, NY 10031, (2)NCAR, Boulder, CO 80305, (3)National Center for Atmospheric Research, Boulder, CO 80305, (4)Climate Change Research Section, National Center for Atmospheric Research, 1850 Table Mesa Drive, Boulder, CO 80305, (5)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (6)Global Climate Dynamics, National Center for Atmospheric Research, 1850 Table Mesa Drive, Boulder, CO 80305, (7)Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301, bblack@berkeley.edu

Siberian Traps magmatism overlapped temporally with fundamental perturbations of global climate during the end-Permian mass extinction. However, the combined climate effects of carbon and sulfur emissions from large igneous province eruptions, and consequently the ecological consequences of magmatism, remain poorly understood. Here, we use a global climate model to simulate the effects of combined carbon and sulfur degassing on end-Permian climate, ocean circulation, and global hydrology with implications for the end-Permian ecological crisis and the transient sensitivity of climate to large-scale volcanic perturbations.

Session No. 225

T144. The Permian-Triassic Crisis and Its Aftermath: Biotic, Climatic, and Environmental Upheavals
Tuesday, 27 September 2016: 1:30 PM-5:30 PM
Mile High Ballroom 4AB (Colorado Convention Center)
Geological Society of America Abstracts with Programs. Vol. 48, No. 7
doi: 10.1130/abs/2016AM-285800
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