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SubmittedOpen Access (License Unspecified), Open
Journal article
State shift in Deccan volcanism at the Cretaceous-Paleogene boundary, possibly induced by impact
Science (American Association for the Advancement of Science), v 350(6256)
02 Oct 2015
PMID: 26430116
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Abstract
Bolide impact and flood volcanism compete as leading candidates for the cause of terminal-Cretaceous mass extinctions. High-precision Ar-40/Ar-39 data indicate that these two mechanisms may be genetically related, and neither can be considered in isolation. The existing Deccan Traps magmatic system underwent a state shift approximately coincident with the Chicxulub impact and the terminal-Cretaceous mass extinctions, after which similar to 70% of the Traps' total volume was extruded in more massive and more episodic eruptions. Initiation of this new regime occurred within similar to 50,000 years of the impact, which is consistent with transient effects of impact-induced seismic energy. Postextinction recovery of marine ecosystems was probably suppressed until after the accelerated volcanism waned.
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Details
- Title
- State shift in Deccan volcanism at the Cretaceous-Paleogene boundary, possibly induced by impact
- Creators
- Paul R. Renne - Berkeley Geochronology CenterCourtney J. Sprain - Berkeley Geochronology CenterMark A. Richards - Department of Earth and Planetary Science, University of California Berkeley, Berkeley, CA 94720, USAStephen Self - Department of Earth and Planetary Science, University of California Berkeley, Berkeley, CA 94720, USALoc Vanderkluysen - Drexel Univ, Dept Biodivers Earth & Environm Sci, Philadelphia, PA 19104 USAKanchan Pande - Indian Institute of Technology Bombay
- Publication Details
- Science (American Association for the Advancement of Science), v 350(6256)
- Publisher
- Amer Assoc Advancement Science
- Number of pages
- 3
- Grant note
- NSF; National Science Foundation (NSF) Ann and Gordon Getty Foundation University of California-Berkeley; University of California System EAR-1250440 / NSF; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES)
- Web of Science ID
- WOS:000362098300048
- Scopus ID
- 2-s2.0-84946906704
- Other Identifier
- 991019173522704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Geochemistry & Geophysics