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Johan Vellekoop
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Journal Article

Hydrological differences between the Lutetian Paris and Hampshire basins revealed by stable isotopes of conid gastropods

Alexander J. Clark, Johan Vellekoop, Robert P. Speijer
Published: 14 March 2022
Bulletin de la Société Géologique de France (2022) 193 (1): 3.
DOI: https://doi.org/10.1051/bsgf/2022002
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Journal Article

Palynology from ground zero of the Chicxulub impact, southern Gulf of Mexico

Vann Smith, Sophie Warny, Johan Vellekoop, Vivi Vajda, Gilles Escarguel, David M. Jarzen
Journal: Palynology
Published: 22 April 2021
Palynology (2021) 45 (2): 283–299.
DOI: https://doi.org/10.1080/01916122.2020.1813826
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Shelf hypoxia in response to global warming after the Cretaceous-Paleogene boundary impact

Johan Vellekoop, Lineke Woelders, Niels A.G.M. van Helmond, Simone Galeotti, Jan Smit, Caroline P. Slomp, Henk Brinkhuis, Philippe Claeys, Robert P. Speijer
Journal: Geology
Published: 22 June 2018
Geology (2018) 46 (8): 683–686.
DOI: https://doi.org/10.1130/G45000.1
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Evidence for Cretaceous-Paleogene boundary bolide “impact winter” conditions from New Jersey, USA

Johan Vellekoop, Selen Esmeray-Senlet, Kenneth G. Miller, James V. Browning, Appy Sluijs, Bas van de Schootbrugge, Jaap S. Sinninghe Damsté, Henk Brinkhuis
Journal: Geology
Published: 01 August 2016
Geology (2016) 44 (8): 619–622.
DOI: https://doi.org/10.1130/G37961.1
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