Triggering of the largest Deccan eruptions by the Chicxulub impact: Reply

Mark A. Richards; Walter Alvarez; Stephen Self; Leif Karlstrom; Paul R. Renne; Michael Manga; Courtney J. Sprain; Jan Smit; Loÿc Vanderkluysen; Sally A. Gibson

doi:10.1130/B31645.1

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Research Article| January 01, 2017

Triggering of the largest Deccan eruptions by the Chicxulub impact: Reply

Mark A. Richards;

Mark A. Richards †

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

†

[email protected]

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Walter Alvarez;

Walter Alvarez

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

2

Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro (MC), Italy

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Stephen Self;

Stephen Self

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

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Leif Karlstrom;

Leif Karlstrom

3

Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403, USA

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Paul R. Renne;

Paul R. Renne

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

4

Berkeley Geochronology Center, Berkeley, California 94709, USA

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Michael Manga;

Michael Manga

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

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Courtney J. Sprain;

Courtney J. Sprain

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

4

Berkeley Geochronology Center, Berkeley, California 94709, USA

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Jan Smit;

Jan Smit

2

Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro (MC), Italy

5

Department of Sedimentary Geology, Vrije Universeit, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands

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Loÿc Vanderkluysen;

Loÿc Vanderkluysen

6

Department of Biodiversity, Earth and Environmental Science, Drexel University, Philadelphia, Pennsylvania 19104, USA

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Sally A. Gibson

7

Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK

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Author and Article Information

Mark A. Richards †

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

Walter Alvarez

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

2

Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro (MC), Italy

Stephen Self

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

Leif Karlstrom

3

Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403, USA

Paul R. Renne

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

4

Berkeley Geochronology Center, Berkeley, California 94709, USA

Michael Manga

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

Courtney J. Sprain

1

Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA

4

Berkeley Geochronology Center, Berkeley, California 94709, USA

Jan Smit

2

Osservatorio Geologico di Coldigioco, Contrada Coldigioco 4, 62021 Apiro (MC), Italy

5

Department of Sedimentary Geology, Vrije Universeit, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands

Loÿc Vanderkluysen

6

Department of Biodiversity, Earth and Environmental Science, Drexel University, Philadelphia, Pennsylvania 19104, USA

Sally A. Gibson

7

Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK

†

[email protected]

Publisher: Geological Society of America

Received: 01 Sep 2016

Accepted: 16 Sep 2016

First Online: 02 Jun 2017

Online ISSN: 1943-2674

Print ISSN: 0016-7606

GSA Bulletin (2017) 129 (1-2): 256.

https://doi.org/10.1130/B31645.1

We appreciate the comments by Dole et al. (2016), and we also appreciate their having shared these views with some of us (Richards, Renne, Sprain, and Vanderkluysen) on a joint field trip in January 2016. We agree with some of the issues raised in the comment, but these points do not undermine our basic conclusion that the stratigraphic transition from the Lonavala Subgroup to the Wai Subgroup within the Deccan Traps represents a fundamental change in the character of Deccan volcanism, and that this change was approximately coincident with the Cretaceous-Paleogene boundary. In fact, the geomorphic features in question...

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