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GSA Special Papers
Volcanism, Impacts, and Mass Extinctions: Causes and Effects
Author(s)
Gerta Keller;
Gerta Keller
Department of Geosciences, Princeton University, Princeton, New Jersey 08544, USA
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Andrew C. Kerr
Andrew C. Kerr
School of Earth and Ocean Sciences, Cardiff University, Park Place, Cardiff CF10 3AT, Wales, UK
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Geological Society of America

Volume
505
Copyright:
© 2014 Geological Society of America
Attribution:You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). Noncommercial ‒ you may not use this work for commercial purpose. No Derivative works ‒ You may not alter, transform, or build upon this work. Sharing ‒ Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science.
ISBN print:
9780813725055
Publication date:
September 01, 2014
Book Chapter
Deccan volcanism, the Chicxulub impact, and the end-Cretaceous mass extinction: Coincidence? Cause and effect?
Author(s)
Gerta Keller
Geosciences Department, Princeton University, Princeton, New Jersey 08544, USA
Gerta Keller
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Published:September 01, 2014
The recent discovery of the direct link between Deccan volcanism and the end-Cretaceous mass extinction also links volcanism to the late Maastrichtian rapid global warming, high environmental stress, and the delayed recovery in the early Danian. In comparison, three decades of research on the Chicxulub impact have failed to account for long-term climatic and environmental changes or prove a coincidence with the mass extinction. A review of Deccan volcanism and the best age estimate for the Chicxulub impact provides a new perspective on the causes for the end-Cretaceous mass extinction and supports an integrated Deccan-Chicxulub scenario. This scenario takes into...
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Index Terms/Descriptors
- absolute age
- acidification
- Andhra Pradesh India
- Ar/Ar
- Arroyo El Mimbral
- Asia
- assemblages
- basalt flows
- biostratigraphy
- biota
- biozones
- C-13/C-12
- carbon
- Cenozoic
- Chhindwara India
- Chicxulub Crater
- climate change
- cores
- correlation
- Cretaceous
- Danian
- Deccan Traps
- deposition
- depositional environment
- erosion
- eruptions
- Foraminifera
- geochemical anomalies
- impact features
- impacts
- India
- Indian Peninsula
- Intertrappean Beds
- Invertebrata
- iridium
- isotopes
- K-T boundary
- K/Ar
- Krishna-Godavari Basin
- lava flows
- lithostratigraphy
- lower Paleocene
- Madhya Pradesh India
- Maestrichtian
- marine sediments
- mass extinctions
- Meghalaya India
- Mesozoic
- metals
- Mexico
- microfossils
- Northeastern India
- Paleocene
- paleoclimatology
- paleoenvironment
- Paleogene
- paleomagnetism
- planktonic taxa
- platinum group
- Protista
- Rajahmundry India
- sea-level changes
- sediments
- spherules
- stable isotopes
- stratigraphic boundary
- Tamaulipas Mexico
- Tertiary
- tsunamis
- Upper Cretaceous
- volcanism
- weathering
- Yucatan Peninsula
- Globigerinina
- Guembelitria
- Guembelitria cretacea
- Guembelitriidae
- Heterohelicacea
- Jhilmili India
- post-extinction recovery
- high-stress environment
- Um Sohryngkew India
Latitude & Longitude
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