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dc.contributor.authorBarnet, J
dc.contributor.authorLittler, K
dc.contributor.authorKroon, D
dc.contributor.authorLeng, M
dc.contributor.authorWesterhold, T
dc.contributor.authorRöhl, U
dc.contributor.authorZachos, J
dc.date.accessioned2018-01-12T15:20:13Z
dc.date.issued2017-12-12
dc.description.abstractThe late Maastrichtian warming event was defined by a global temperature increase of ∼2.5–5 °C that occurred ∼150–300 k.y. before the Cretaceous-Paleogene (K-Pg) mass extinction. This transient warming event has traditionally been associated with a major pulse of Deccan Traps (west-central India) volcanism; however, large uncertainties associated with radiogenic dating methods have long hampered a definitive correlation. Here we present a new high-resolution, single species, benthic stable isotope record from the South Atlantic, calibrated to an updated orbitally tuned age model, to provide a revised chronology of the event, which we then correlate to the latest radiogenic dates of the main Deccan Traps eruption phases. Our data reveal that the initiation of deep-sea warming coincides, within uncertainty, with the onset of the main phase of Deccan volcanism, strongly suggesting a causal link. The onset of deep-sea warming is synchronous with a 405 k.y. eccentricity minimum, excluding a control by orbital forcing alone, although amplified carbon cycle sensitivity to orbital precession is evident during the greenhouse warming. A more precise understanding of Deccan-induced climate change paves the way for future work focusing on the fundamental role of these precursor climate shifts in the K-Pg mass extinction.en_GB
dc.description.sponsorshipFinancial support for this research was provided by the Deutsche Forschungsgemeinschaft (DFG) to Ursula Röhl and Thomas Westerhold.en_GB
dc.identifier.citationPublished online 12 December 2017en_GB
dc.identifier.doi10.1130/G39771.1
dc.identifier.urihttp://hdl.handle.net/10871/30937
dc.language.isoenen_GB
dc.publisherGeological Society of Americaen_GB
dc.rights© 2017 The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license.en_GB
dc.titleA new high-resolution chronology for the late Maastrichtian warming event: Establishing robust temporal links with the onset of Deccan volcanismen_GB
dc.typeArticleen_GB
dc.identifier.issn0091-7613
dc.descriptionThis is the author accepted manuscript. The final version is available from Geological Society of America via the DOI in this record.en_GB
dc.identifier.journalGeologyen_GB


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