U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction

Schoene, Blair; Eddy, Michael P.; Samperton, Kyle M.; Keller, C. Brenhin; Keller, Gerta; Adatte, Thierry; Khadri, Syed F.  R.

doi:10.1126/science.aau2422

Title: U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction

Abstract

Temporal correlation between some continental flood basalt eruptions and mass extinctions has been proposed to indicate causality, with eruptive volatile release driving environmental degradation and extinction. In this work, we tested this model for the Deccan Traps flood basalt province, which, along with the Chicxulub bolide impact, is implicated in the Cretaceous-Paleogene (K-Pg) extinction approximately 66 million years ago. We estimated Deccan eruption rates with uranium-lead (U-Pb) zircon geochronology and resolved four high-volume eruptive periods. According to this model, maximum eruption rates occurred before and after the K-Pg extinction, with one such pulse initiating tens of thousands of years prior to both the bolide impact and extinction. Finally, these findings support extinction models that incorporate both catastrophic events as drivers of environmental deterioration associated with the K-Pg extinction and its aftermath.

Authors:

^[1];

^[2];

^[3]; Keller, Gerta ^[1];

^[4]; Khadri, Syed F. R. ^[5]

Princeton Univ., NJ (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Berkeley Geochronology Center, Berkeley, CA (United States)
Université de Lausanne, GEOPOLIS (Switzerland)
Amravati University (India)

Publication Date:: Fri Feb 22 00:00:00 EST 2019

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1497969

Report Number(s):: LLNL-JRNL-755419
Journal ID: ISSN 0036-8075; 942423

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Science

Additional Journal Information:: Journal Volume: 363; Journal Issue: 6429; Journal ID: ISSN 0036-8075

Publisher:: AAAS

Country of Publication:: United States

Language:: English

Subject:: 58 GEOSCIENCES

Citation Formats


                    Schoene, Blair, Eddy, Michael P., Samperton, Kyle M., Keller, C. Brenhin, Keller, Gerta, Adatte, Thierry, and Khadri, Syed F.  R. U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction.  United States: N. p., 2019. 
Web.  doi:10.1126/science.aau2422.

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                    Schoene, Blair, Eddy, Michael P., Samperton, Kyle M., Keller, C. Brenhin, Keller, Gerta, Adatte, Thierry, & Khadri, Syed F.  R. U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction.  United States.  https://doi.org/10.1126/science.aau2422

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                    Schoene, Blair, Eddy, Michael P., Samperton, Kyle M., Keller, C. Brenhin, Keller, Gerta, Adatte, Thierry, and Khadri, Syed F.  R. Fri .  
"U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction".  United States.  https://doi.org/10.1126/science.aau2422.  https://www.osti.gov/servlets/purl/1497969.

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@article{osti_1497969,

  title        = {U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction},

  author       = {Schoene, Blair and Eddy, Michael P. and Samperton, Kyle M. and Keller, C. Brenhin and Keller, Gerta and Adatte, Thierry and Khadri, Syed F.  R.},

  abstractNote = {Temporal correlation between some continental flood basalt eruptions and mass extinctions has been proposed to indicate causality, with eruptive volatile release driving environmental degradation and extinction. In this work, we tested this model for the Deccan Traps flood basalt province, which, along with the Chicxulub bolide impact, is implicated in the Cretaceous-Paleogene (K-Pg) extinction approximately 66 million years ago. We estimated Deccan eruption rates with uranium-lead (U-Pb) zircon geochronology and resolved four high-volume eruptive periods. According to this model, maximum eruption rates occurred before and after the K-Pg extinction, with one such pulse initiating tens of thousands of years prior to both the bolide impact and extinction. Finally, these findings support extinction models that incorporate both catastrophic events as drivers of environmental deterioration associated with the K-Pg extinction and its aftermath.},

  doi          = {10.1126/science.aau2422},

  journal      = {Science},

  number       = 6429,

  volume       = 363,

  place        = {United States},

  year         = {Fri Feb 22 00:00:00 EST 2019},

  month        = {Fri Feb 22 00:00:00 EST 2019}

}

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DOI: 10.1126/science.1215507

Volcanological and tectonic control of stratigraphy and structure in the western Deccan traps
journal, August 1986

Devey, C. W.; Lightfoot, P. C.
Bulletin of Volcanology, Vol. 48, Issue 4
DOI: 10.1007/BF01087674

Stratigraphy, structure and volcanology of the SE Deccan continental flood basalt province: implications for eruptive extent and volumes
text, January 2016

Jay, Anne E.; Widdowson, Mike
Geological Society of London
DOI: 10.6084/m9.figshare.3454451

Metrology and Traceability of U-Pb Isotope Dilution Geochronology (EARTHTIME Tracer Calibration Part I)
text, January 2017

Condon, Daniel; Schoene, Blair; McLean, Noah
EarthArXiv
DOI: 10.17605/osf.io/kr3ge

Correlation of the Deccan and Rajahmundry Trap lavas: Are these the longest and largest lava flows on Earth?
journal, May 2008

Self, S.; Jay, A. E.; Widdowson, M.
Journal of Volcanology and Geothermal Research, Vol. 172, Issue 1-2
DOI: 10.1016/j.jvolgeores.2006.11.012

Determination of rapid Deccan eruptions across the Cretaceous-Tertiary boundary using paleomagnetic secular variation: 2. Constraints from analysis of eight new sections and synthesis for a 3500-m-thick composite section
journal, January 2009

Chenet, Anne-Lise; Courtillot, Vincent; Fluteau, Frédéric
Journal of Geophysical Research, Vol. 114, Issue B6
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Stratigraphy, composition and form of the Deccan Basalts, Western Ghats, India
journal, February 1986

Beane, J. E.; Turner, C. A.; Hooper, P. R.
Bulletin of Volcanology, Vol. 48, Issue 1
DOI: 10.1007/BF01073513

A new high-resolution chronology for the late Maastrichtian warming event: Establishing robust temporal links with the onset of Deccan volcanism
journal, December 2017

Barnet, James S. K.; Littler, Kate; Kroon, Dick
Geology, Vol. 46, Issue 2
DOI: 10.1130/G39771.1

Source and Differentiation of Deccan Trap Lavas: Implications of Geochemical and Mineral Chemical Variations
journal, October 1990

Lightfoot, P. C.; Hawkesworth, C. J.; Devey, C. W.
Journal of Petrology, Vol. 31, Issue 5
DOI: 10.1093/petrology/31.5.1165

Multi-proxy record of the Chicxulub impact at the Cretaceous-Paleogene boundary from Gorgonilla Island, Colombia
journal, April 2018

Renne, Paul R.; Arenillas, Ignacio; Arz, José A.
Geology, Vol. 46, Issue 6
DOI: 10.1130/G40224.1

Experimental zircon/melt and zircon/garnet trace element partitioning and implications for the geochronology of crustal rocks
text, January 2007

Rubatto, Daniela; Hermann, Jörg
Elsevier
DOI: 10.7892/boris.86026

Stratigraphy, structure and volcanology of the SE Deccan continental flood basalt province: implications for eruptive extent and volumes
text, January 2016

Jay, Anne E.; Widdowson, Mike
Geological Society of London
DOI: 10.6084/m9.figshare.3454451.v1

Works referencing / citing this record:

On impact and volcanism across the Cretaceous-Paleogene boundary
journal, January 2020

Hull, Pincelli M.; Bornemann, André; Penman, Donald E.
Science, Vol. 367, Issue 6475
DOI: 10.1126/science.aay5055

Biogenic carbonate mercury and marine temperature records reveal global influence of Late Cretaceous Deccan Traps
journal, December 2019

Meyer, Kyle W.; Petersen, Sierra V.; Lohmann, Kyger C.
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-019-13366-0

Stable Isotope Constraints on Marine Productivity Across the Cretaceous‐Paleogene Mass Extinction
journal, July 2019

Sepúlveda, Julio; Alegret, Laia; Thomas, Ellen
Paleoceanography and Paleoclimatology, Vol. 34, Issue 7
DOI: 10.1029/2018pa003442

Mineralogical evidence for multiple dust sources in an early Triassic loessite
journal, August 2019

Wilson, Michael J.; Hurst, Andrew; Wilkins, Anne D.
Sedimentology, Vol. 67, Issue 1
DOI: 10.1111/sed.12641

Skeleton of a Cretaceous mammal from Madagascar reflects long-term insularity
journal, April 2020

Krause, David W.; Hoffmann, Simone; Hu, Yaoming
Nature, Vol. 581, Issue 7809
DOI: 10.1038/s41586-020-2234-8

Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction
journal, October 2019

Lyson, T. R.; Miller, I. M.; Bercovici, A. D.
Science, Vol. 366, Issue 6468
DOI: 10.1126/science.aay2268

The driving mechanisms of the carbon cycle perturbations in the late Pliensbachian (Early Jurassic)
journal, December 2019

De Lena, Luis F.; Taylor, David; Guex, Jean
Scientific Reports, Vol. 9, Issue 1
DOI: 10.1038/s41598-019-54593-1

Rapid ocean acidification and protracted Earth system recovery followed the end-Cretaceous Chicxulub impact
journal, October 2019

Henehan, Michael J.; Ridgwell, Andy; Thomas, Ellen
Proceedings of the National Academy of Sciences, Vol. 116, Issue 45
DOI: 10.1073/pnas.1905989116

No Evidence for a Large Atmospheric CO ₂ Spike Across the Cretaceous‐Paleogene Boundary
journal, March 2019

Milligan, Joseph N.; Royer, Dana L.; Franks, Peter J.
Geophysical Research Letters, Vol. 46, Issue 6
DOI: 10.1029/2018gl081215

Nature and timing of biotic recovery in Antarctic benthic marine ecosystems following the Cretaceous–Palaeogene mass extinction
journal, June 2019

Whittle, Rowan J.; Witts, James D.; Bowman, Vanessa C.
Palaeontology, Vol. 62, Issue 6
DOI: 10.1111/pala.12434

Nature and Timing of Biotic Recovery in Antarctic Benthic Marine Ecosystems Following the Cretaceous–Paleogene mass Extinction
conference, January 2019

Whittle, Rowan J.; Witts, James D.; Bowman, Vanessa C.
GSA Annual Meeting in Phoenix, Arizona, USA - 2019, Geological Society of America Abstracts with Programs
DOI: 10.1130/abs/2019am-333664

Biogenic carbonate mercury and marine temperature records reveal global influence of Late Cretaceous Deccan Traps
journal, December 2019

Meyer, Kyle W.; Petersen, Sierra V.; Lohmann, Kyger C.
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-019-13366-0

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Triggering of the largest Deccan eruptions by the Chicxulub impact

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New constraints on the timing of the Cretaceous- Paleogene mass extinction and the Chicxulub impact, together with a particularly voluminous and apparently brief eruptive pulse toward the end of the "main-stage" eruptions of the Deccan continental flood basalt province suggest that these three events may have occurred within less than about a hundred thousand years of each other. Partial melting induced by the Chicxulub event does not provide an energetically plausible explanation for this coincidence, and both geochronologic and magnetic-polarity data show that Deccan volcanism was under way well before Chicxulub/Cretaceous-Paleogene time. However, historical data document that eruptions from existingmore »« less
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Climate instability driven by emission of volatiles during emplacement of large igneous provinces (LIPs) is frequently invoked as a potential cause of mass extinctions. However, documenting this process in the geologic record requires a holistic understanding of eruption rates, the location of eruptive centers, and potential sources of climate-changing volatiles. We present new chemical abrasion–isotope dilution–thermal ionization mass spectrometry (CA-ID-TIMS) U-Pb zircon geochronology from Malwa Plateau basalts on the northern margin of the Deccan LIP, India. These basalts have been previously interpreted as either an extension of the province's main volcanic stratigraphy or as an independent eruptive center active upmore »« less
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Title: U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction

Abstract

Citation Formats

High-resolution chronostratigraphy of the terrestrial Cretaceous-Paleogene transition and recovery interval in the Hell Creek region, Montana journal, September 2014

Metrology and traceability of U–Pb isotope dilution geochronology (EARTHTIME Tracer Calibration Part I) journal, September 2015

Evaluating uncertainties in the calibration of isotopic reference materials and multi-element isotopic tracers (EARTHTIME Tracer Calibration Part II) text, January 2017

State shift in Deccan volcanism at the Cretaceous-Paleogene boundary, possibly induced by impact journal, October 2015

Volatiles and the tempo of flood basalt magmatism journal, January 2017

Astronomical calibration of the Maastrichtian (Late Cretaceous) journal, May 2011

Geochronological constraints on post-extinction recovery of the ammonoids and carbon cycle perturbations during the Early Jurassic journal, August 2012

Dissolution, growth and survival of zircons during crustal fusion: kinetic principals, geological models and implications for isotopic inheritance journal, January 1996

40K–40Ar dating of the Main Deccan large igneous province: Further evidence of KTB age and short duration journal, November 2007

Zircon growth and recycling during the assembly of large, composite arc plutons journal, November 2007

An astronomical time scale for the Maastrichtian based on the Zumaia and Sopelana sections (Basque country, northern Spain) journal, January 2014

U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction journal, December 2014

High-precision zircon U/Pb geochronology by ID-TIMS using new 10 13 ohm resistors journal, January 2016

Calibration of radiocarbon results pertaining to related archaeological events journal, September 1992

La2010: a new orbital solution for the long-term motion of the Earth journal, July 2011

Stratigraphy, structure and volcanology of the SE Deccan continental flood basalt province: implications for eruptive extent and volumes journal, January 2008

High-precision zircon U–Pb geochronology of astronomically dated volcanic ash beds from the Mediterranean Miocene journal, December 2014

Effect of deep-sea sedimentary calcite preservation on atmospheric CO2 concentration journal, January 1994

Evaluating uncertainties in the calibration of isotopic reference materials and multi-element isotopic tracers (EARTHTIME Tracer Calibration Part II) journal, September 2015

Morphology and emplacement of flows from the Deccan Volcanic Province, India journal, January 2004

Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescales journal, October 2016

Towards accurate numerical calibration of the Late Triassic: High-precision U-Pb geochronology constraints on the duration of the Rhaetian journal, May 2014

High-precision geochronology confirms voluminous magmatism before, during, and after Earth’s most severe extinction journal, August 2015

Geochemical Stratigraphy of the Deccan Traps at Mahabaleshwar, Western Ghats, India, with Implications for Open System Magmatic Processes journal, May 1985

40Ar/39Ar dating of the Rajahmundry Traps, Eastern India and their relationship to the Deccan Traps journal, March 2003

Cyclostratigraphy and astronomical tuning of the Late Maastrichtian at Zumaia (Basque country, Northern Spain) journal, December 2012

The largest volcanic eruptions on Earth journal, October 2010

On the evolution of large ultramafic magma chambers and timescales for flood basalt eruptions journal, January 2011

Episodic growth and homogenization of plutonic roots in arc volcanoes from combined U–Th and (U–Th)/He zircon dating journal, June 2010

Tracking the evolution of large-volume silicic magma reservoirs from assembly to supereruption journal, August 2013

High-precision timeline for Earth’s most severe extinction journal, February 2014

Synchronizing Rock Clocks of Earth History journal, April 2008

Intercalibration of radioisotopic and astrochronologic time scales for the Cenomanian-Turonian boundary interval, Western Interior Basin, USA journal, January 2012

A simple monotone process with application to radiocarbon-dated depth chronologies journal, September 2008

Astronomical calibration of the Paleocene time journal, February 2008

A complete high-resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209): PALEOCENE BENTHIC STABLE ISOTOPE RECORD journal, May 2011

Correlating the end-Triassic mass extinction and flood basalt volcanism at the 100 ka level journal, May 2010

Deccan flood basalts and the Cretaceous/Tertiary boundary journal, June 1988

Time Scales of Critical Events Around the Cretaceous-Paleogene Boundary journal, February 2013

Rates of magma emplacement and volcanic output journal, April 1984

A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations journal, March 1973

Basalt weathering laws and the impact of basalt weathering on the global carbon cycle journal, December 2003

Intercalibration of standards, absolute ages and uncertainties in 40Ar/39Ar dating journal, March 1998

The geochemistry of Indian bole horizons: palaeoenvironmental implications of Deccan intravolcanic palaeosurfaces journal, January 1997

A geological map of the southern Deccan Traps, India and its structural implications journal, May 1991

On The Geologic Time Scale [On The Geologic Time Scale] journal, April 2012

Anomalous K-Pg–aged seafloor attributed to impact-induced mid-ocean ridge magmatism journal, February 2018

Triggering of the largest Deccan eruptions by the Chicxulub impact journal, April 2015

Mineralogy and Petrogenesis of the Deccan Trap Lava Flows around Mahabaleshwar, India journal, June 1986

A Redetermination of the Relative Abundances of the Isotopes of Carbon, Nitrogen, Oxygen, Argon, and Potassium journal, March 1950

Age of the Deccan traps using 187Re–187Os systematics journal, July 1999

Integrating 40Ar/39Ar, U-Pb, and astronomical clocks in the Cretaceous Niobrara Formation, Western Interior Basin, USA journal, March 2014

Volcanic–plutonic parity and the differentiation of the continental crust journal, July 2015

Climatic fluctuations and sea-surface water circulation patterns at the end of the Cretaceous era: Calcareous nannofossil evidence journal, January 2016

A stochastic sampling approach to zircon eruption age interpretation journal, October 2018

Inter-basaltic clay (bole bed) horizons from Deccan traps of India: Implications for palaeo-weathering and palaeo-climate during Deccan volcanism journal, November 2006

238U/235U Systematics in Terrestrial Uranium-Bearing Minerals text, January 2017

Selective environmental stress from sulphur emitted by continental flood basalt eruptions journal, November 2015

Preliminary comparison of ancient bole beds and modern soils developed upon the Deccan volcanic basalts around Pune (India): Potential for palaeoenvironmental reconstruction journal, November 2006

High-precision U–Pb zircon age constraints on the Carboniferous–Permian boundary in the southern Urals stratotype journal, April 2007

Biogeochemical significance of pelagic ecosystem function: an end-Cretaceous case study journal, May 2016

Equation of State Calculations by Fast Computing Machines journal, June 1953

Experimental zircon/melt and zircon/garnet trace element partitioning and implications for the geochronology of crustal rocks journal, June 2007

Petrochronology and TIMS journal, February 2017

Reducing time-scale uncertainty for the Devonian by integrating astrochronology and Bayesian statistics journal, June 2014

Zircon U–Pb chemical abrasion (“CA-TIMS”) method: Combined annealing and multi-step partial dissolution analysis for improved precision and accuracy of zircon ages journal, July 2005

On the ages of flood basalt events journal, January 2003

Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China journal, January 2006

Zircon age-temperature-compositional spectra in plutonic rocks journal, August 2017

A test for systematic errors in 40Ar/39Ar geochronology through comparison with U/Pb analysis of a 1.1-Ga rhyolite journal, January 2000

Evaluation of the astronomical time scale for the Paleocene and earliest Eocene journal, November 2010

A high-resolution marine 187Os/188Os record for the late Maastrichtian: Distinguishing the chemical fingerprints of Deccan volcanism and the KP impact event journal, May 2009

Late Pleistocene granodiorite source for recycled zircon and phenocrysts in rhyodacite lava at Crater Lake, Oregon journal, May 2005

Determination of rapid Deccan eruptions across the Cretaceous-Tertiary boundary using paleomagnetic secular variation: Results from a 1200-m-thick section in the Mahabaleshwar escarpment journal, January 2008

Joint determination of 40K decay constants and 40Ar∗/40K for the Fish Canyon sanidine standard, and improved accuracy for 40Ar/39Ar geochronology journal, September 2010

Abrupt deep-sea warming at the end of the Cretaceous journal, January 1998

Rapid eruption of the Deccan flood basalts at the Cretaceous/Tertiary boundary journal, June 1988

High-resolution chronostratigraphy of the terrestrial Cretaceous-Paleogene transition and recovery interval in the Hell Creek region, Montana
journal, September 2014

Metrology and traceability of U–Pb isotope dilution geochronology (EARTHTIME Tracer Calibration Part I)
journal, September 2015

Evaluating uncertainties in the calibration of isotopic reference materials and multi-element isotopic tracers (EARTHTIME Tracer Calibration Part II)
text, January 2017

State shift in Deccan volcanism at the Cretaceous-Paleogene boundary, possibly induced by impact
journal, October 2015

Volatiles and the tempo of flood basalt magmatism
journal, January 2017

Astronomical calibration of the Maastrichtian (Late Cretaceous)
journal, May 2011

Geochronological constraints on post-extinction recovery of the ammonoids and carbon cycle perturbations during the Early Jurassic
journal, August 2012

Dissolution, growth and survival of zircons during crustal fusion: kinetic principals, geological models and implications for isotopic inheritance
journal, January 1996

40K–40Ar dating of the Main Deccan large igneous province: Further evidence of KTB age and short duration
journal, November 2007

Zircon growth and recycling during the assembly of large, composite arc plutons
journal, November 2007

An astronomical time scale for the Maastrichtian based on the Zumaia and Sopelana sections (Basque country, northern Spain)
journal, January 2014

U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction
journal, December 2014

High-precision zircon U/Pb geochronology by ID-TIMS using new 10 ¹³ ohm resistors
journal, January 2016

Calibration of radiocarbon results pertaining to related archaeological events
journal, September 1992

La2010: a new orbital solution for the long-term motion of the Earth
journal, July 2011

Stratigraphy, structure and volcanology of the SE Deccan continental flood basalt province: implications for eruptive extent and volumes
journal, January 2008

High-precision zircon U–Pb geochronology of astronomically dated volcanic ash beds from the Mediterranean Miocene
journal, December 2014

Effect of deep-sea sedimentary calcite preservation on atmospheric CO2 concentration
journal, January 1994

Evaluating uncertainties in the calibration of isotopic reference materials and multi-element isotopic tracers (EARTHTIME Tracer Calibration Part II)
journal, September 2015

Morphology and emplacement of flows from the Deccan Volcanic Province, India
journal, January 2004

Direct high-precision U–Pb geochronology of the end-Cretaceous extinction and calibration of Paleocene astronomical timescales
journal, October 2016

Towards accurate numerical calibration of the Late Triassic: High-precision U-Pb geochronology constraints on the duration of the Rhaetian
journal, May 2014

High-precision geochronology confirms voluminous magmatism before, during, and after Earth’s most severe extinction
journal, August 2015

Geochemical Stratigraphy of the Deccan Traps at Mahabaleshwar, Western Ghats, India, with Implications for Open System Magmatic Processes
journal, May 1985

40Ar/39Ar dating of the Rajahmundry Traps, Eastern India and their relationship to the Deccan Traps
journal, March 2003

Cyclostratigraphy and astronomical tuning of the Late Maastrichtian at Zumaia (Basque country, Northern Spain)
journal, December 2012

The largest volcanic eruptions on Earth
journal, October 2010

On the evolution of large ultramafic magma chambers and timescales for flood basalt eruptions
journal, January 2011

Episodic growth and homogenization of plutonic roots in arc volcanoes from combined U–Th and (U–Th)/He zircon dating
journal, June 2010

Tracking the evolution of large-volume silicic magma reservoirs from assembly to supereruption
journal, August 2013

High-precision timeline for Earth’s most severe extinction
journal, February 2014

Synchronizing Rock Clocks of Earth History
journal, April 2008

Intercalibration of radioisotopic and astrochronologic time scales for the Cenomanian-Turonian boundary interval, Western Interior Basin, USA
journal, January 2012

A simple monotone process with application to radiocarbon-dated depth chronologies
journal, September 2008

Astronomical calibration of the Paleocene time
journal, February 2008

A complete high-resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209): PALEOCENE BENTHIC STABLE ISOTOPE RECORD
journal, May 2011

Correlating the end-Triassic mass extinction and flood basalt volcanism at the 100 ka level
journal, May 2010

Deccan flood basalts and the Cretaceous/Tertiary boundary
journal, June 1988

Time Scales of Critical Events Around the Cretaceous-Paleogene Boundary
journal, February 2013

Rates of magma emplacement and volcanic output
journal, April 1984

A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations
journal, March 1973

Basalt weathering laws and the impact of basalt weathering on the global carbon cycle
journal, December 2003

Intercalibration of standards, absolute ages and uncertainties in 40Ar/39Ar dating
journal, March 1998

The geochemistry of Indian bole horizons: palaeoenvironmental implications of Deccan intravolcanic palaeosurfaces
journal, January 1997

A geological map of the southern Deccan Traps, India and its structural implications
journal, May 1991

On The Geologic Time Scale [On The Geologic Time Scale]
journal, April 2012

Anomalous K-Pg–aged seafloor attributed to impact-induced mid-ocean ridge magmatism
journal, February 2018

Triggering of the largest Deccan eruptions by the Chicxulub impact
journal, April 2015

Mineralogy and Petrogenesis of the Deccan Trap Lava Flows around Mahabaleshwar, India
journal, June 1986

A Redetermination of the Relative Abundances of the Isotopes of Carbon, Nitrogen, Oxygen, Argon, and Potassium
journal, March 1950

Age of the Deccan traps using 187Re–187Os systematics
journal, July 1999

Integrating 40Ar/39Ar, U-Pb, and astronomical clocks in the Cretaceous Niobrara Formation, Western Interior Basin, USA
journal, March 2014

Volcanic–plutonic parity and the differentiation of the continental crust
journal, July 2015

Climatic fluctuations and sea-surface water circulation patterns at the end of the Cretaceous era: Calcareous nannofossil evidence
journal, January 2016

A stochastic sampling approach to zircon eruption age interpretation
journal, October 2018

Inter-basaltic clay (bole bed) horizons from Deccan traps of India: Implications for palaeo-weathering and palaeo-climate during Deccan volcanism
journal, November 2006

238U/235U Systematics in Terrestrial Uranium-Bearing Minerals
text, January 2017

Selective environmental stress from sulphur emitted by continental flood basalt eruptions
journal, November 2015

Preliminary comparison of ancient bole beds and modern soils developed upon the Deccan volcanic basalts around Pune (India): Potential for palaeoenvironmental reconstruction
journal, November 2006

High-precision U–Pb zircon age constraints on the Carboniferous–Permian boundary in the southern Urals stratotype
journal, April 2007

Biogeochemical significance of pelagic ecosystem function: an end-Cretaceous case study
journal, May 2016

Equation of State Calculations by Fast Computing Machines
journal, June 1953

Experimental zircon/melt and zircon/garnet trace element partitioning and implications for the geochronology of crustal rocks
journal, June 2007

Petrochronology and TIMS
journal, February 2017

Reducing time-scale uncertainty for the Devonian by integrating astrochronology and Bayesian statistics
journal, June 2014

Zircon U–Pb chemical abrasion (“CA-TIMS”) method: Combined annealing and multi-step partial dissolution analysis for improved precision and accuracy of zircon ages
journal, July 2005

On the ages of flood basalt events
journal, January 2003

Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China
journal, January 2006

Zircon age-temperature-compositional spectra in plutonic rocks
journal, August 2017

A test for systematic errors in 40Ar/39Ar geochronology through comparison with U/Pb analysis of a 1.1-Ga rhyolite
journal, January 2000

Evaluation of the astronomical time scale for the Paleocene and earliest Eocene
journal, November 2010

A high-resolution marine 187Os/188Os record for the late Maastrichtian: Distinguishing the chemical fingerprints of Deccan volcanism and the KP impact event
journal, May 2009

Late Pleistocene granodiorite source for recycled zircon and phenocrysts in rhyodacite lava at Crater Lake, Oregon
journal, May 2005

Determination of rapid Deccan eruptions across the Cretaceous-Tertiary boundary using paleomagnetic secular variation: Results from a 1200-m-thick section in the Mahabaleshwar escarpment
journal, January 2008

Joint determination of 40K decay constants and 40Ar∗/40K for the Fish Canyon sanidine standard, and improved accuracy for 40Ar/39Ar geochronology
journal, September 2010

Abrupt deep-sea warming at the end of the Cretaceous
journal, January 1998

Rapid eruption of the Deccan flood basalts at the Cretaceous/Tertiary boundary
journal, June 1988

End-Triassic mass extinction started by intrusive CAMP activity
journal, May 2017

Pahoehoe–a′a transitions in the lava flow fields of the western Deccan Traps, India-implications for emplacement dynamics, flood basalt architecture and volcanic stratigraphy
journal, April 2014

Reassessing the uranium decay constants for geochronology using ID-TIMS U–Pb data
journal, January 2006