000117450 001__ 117450
000117450 005__ 20240319080959.0
000117450 0247_ $$2doi$$a10.1130/G49214.1
000117450 0248_ $$2sideral$$a128133
000117450 037__ $$aART-2022-128133
000117450 041__ $$aeng
000117450 100__ $$0(orcid)0000-0001-7302-5901$$aGilabert, V.$$uUniversidad de Zaragoza
000117450 245__ $$aContribution of orbital forcing and Deccan volcanism to global climatic and biotic changes across the Cretaceous-Paleogene boundary at Zumaia, Spain
000117450 260__ $$c2022
000117450 5060_ $$aAccess copy available to the general public$$fUnrestricted
000117450 5203_ $$aUntangling the timing of the environmental effects of Deccan volcanism with respect to the Chicxulub impact is instrumental to fully assessing the contributions of both to climate change over the Cretaceous-Paleogene boundary (KPB) interval. Despite recent improvements in radiometric age calibrations, the accuracy of age constraints and correlations is insufficient to resolve the exact mechanisms leading to environmental and climate change in the 1 m.y. across the KPB. We present new high-resolution planktic foraminiferal, geochemical, and geophysical data from the Zumaia section (Spain), calibrated to an updated orbitally tuned age model. We provide a revised chronology for the major carbon isotope excursions (CIEs) and planktic foraminiferal events and test temporal relationships with different models of the eruptive phases of the Deccan Traps. Our data show that the major CIEs near the KPB, i.e., the late Maastrichtian warming event (66.25–66.10 Ma) and the Dan-C2 event (65.8–65.7 Ma), are synchronous with the last and the first 405 k.y. eccentricity maximum of the Maastrichtian and the Danian, respectively, and that the minor Lower C29n event (65.48–65.41 Ma) is well constrained to a short eccentricity maximum. Conversely, we obtained evidence of abrupt environmental change likely related to Deccan volcanism at ca. 65.9 Ma, based on a bloom of opportunistic triserial guembelitriids (Chiloguembelitria). The orbital, isotopic, and paleobiological temporal relationships with Deccan volcanism established here provide new insights into the role of Deccan volcanism in climate and environmental change in the 1 m.y. across the KPB. © 2021. The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license.
000117450 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E33-20R$$9info:eu-repo/grantAgreement/ES/MINECO/BES-2016-077800$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-093890-B-I00
000117450 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000117450 590__ $$a5.8$$b2022
000117450 592__ $$a2.397$$b2022
000117450 591__ $$aGEOLOGY$$b1 / 48 = 0.021$$c2022$$dQ1$$eT1
000117450 593__ $$aGeology$$c2022$$dQ1
000117450 594__ $$a9.8$$b2022
000117450 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000117450 700__ $$aBatenburg, S. J.
000117450 700__ $$0(orcid)0000-0003-4632-533X$$aArenillas, I.$$uUniversidad de Zaragoza
000117450 700__ $$0(orcid)0000-0003-0063-8752$$aArz, J. A.$$uUniversidad de Zaragoza
000117450 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000117450 773__ $$g50, 1 (2022), 21-25$$pGeology$$tGeology$$x0091-7613
000117450 8564_ $$s1219188$$uhttps://zaguan.unizar.es/record/117450/files/texto_completo.pdf$$yVersión publicada
000117450 8564_ $$s3525891$$uhttps://zaguan.unizar.es/record/117450/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
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000117450 951__ $$a2024-03-18-14:01:18
000117450 980__ $$aARTICLE