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GERTA KELLER
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Journal Article

Deposition and age of Chicxulub impact spherules on Gorgonilla Island, Colombia

Paula Mateo, Gerta Keller, Thierry Adatte, André M. Bitchong, Jorge E. Spangenberg, Torsten Vennemann, Christopher J. Hollis
Published: 17 June 2019
GSA Bulletin (2020) 132 (1-2): 215–232.
DOI: https://doi.org/10.1130/B35287.1
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Productivity across the Cretaceous/Tertiary boundary in high latitudes

ENRIQUETA BARRERA, GERTA KELLER
Published: 01 October 1994
GSA Bulletin (1994) 106 (10): 1254–1266.
DOI: https://doi.org/10.1130/0016-7606(1994)106<1254:PATCTB>2.3.CO;2
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How complete are Cretaceous /Tertiary boundary sections? A chronostratigraphic estimate based on graphic correlation

NORMAN MACLEOD, GERTA KELLER
Published: 01 November 1991
GSA Bulletin (1991) 103 (11): 1439–1457.
DOI: https://doi.org/10.1130/0016-7606(1991)103<1439:HCACTB>2.3.CO;2
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Extended period of extinctions across the Cretaceous/Tertiary boundary in planktonic foraminifera of continental-shelf sections: Implications for impact and volcanism theories: Discussion and reply

JOANNE BOURGEOIS, GERTA KELLER
Published: 01 March 1991
GSA Bulletin (1991) 103 (3): 434–436.
DOI: https://doi.org/10.1130/0016-7606(1991)103<0434:EPOEAT>2.3.CO;2
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Extended period of extinctions across the Cretaceous /Tertiary boundary in planktonic foraminifera of continental-shelf sections: Implications for impact and volcanism theories

GERTA KELLER
Published: 01 November 1989
GSA Bulletin (1989) 101 (11): 1408–1419.
DOI: https://doi.org/10.1130/0016-7606(1989)101<1408:EPOEAT>2.3.CO;2
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Paleoceanographic implications of Miocene deep-sea hiatuses

GERTA KELLER, JOHN A. BARRON
Published: 01 May 1983
GSA Bulletin (1983) 94 (5): 590–613.
DOI: https://doi.org/10.1130/0016-7606(1983)94<590:PIOMDH>2.0.CO;2
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