Prolonged ¹⁸⁷Os/¹⁸⁸Os excursion implies hydrothermal influence after the Chicxulub impact in the Gulf of Mexico
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The Cretaceous/Paleogene boundary asteroid impact is recorded globally as a negative ¹⁸⁷Os/¹⁸⁸Os excursion, including in sediments recovered from the IODP-ICDP drilling within the peak ring of the Chicxulub structure in the Gulf of Mexico. The reconstructed marine ¹⁸⁷Os/¹⁸⁸Os curves can be used for global age correlations on the ~10 kyr scale. However, the versatility of Os isotope clock between the proximal and distal sites remains unclear. This paper presents ¹⁸⁷Os/¹⁸⁸Os records from early Paleocene sediments deposited in the Chicxulub impact basin and Mexican sites with biochronological scales. The results for these proximal sites show a recovery timescale of ~700 kyr, which is significantly longer than that of the distal sites (~200 kyr). The interval showing the ¹⁸⁷Os/¹⁸⁸Os decline coincides with the enrichment of hydrothermally-derived Mn, implying that hydrothermal venting at the Chicxulub structure may have played a role in the marine chemistry and ecosystem of the Gulf of Mexico.
Date Issued
2025-04-08
Date Acceptance
2025-03-11
Citation
Nature Communications, 2025, 16
ISSN
2041-1723
Publisher
Nature Portfolio
Journal / Book Title
Nature Communications
Volume
16
Copyright Statement
©The Author(s) 2025 Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/40199849
PII: 10.1038/s41467-025-58112-x
Subjects
ATLANTIC
CRATER
CRETACEOUS-TERTIARY BOUNDARY
DECCAN VOLCANISM
EXTINCTION
MELT ROCK
Multidisciplinary Sciences
OSMIUM ISOTOPE
PLATINUM-GROUP ELEMENTS
RECOVERY
Science & Technology
Science & Technology - Other Topics
SIDEROPHILE ELEMENT
Publication Status
Published
Coverage Spatial
England
Article Number
2901
Date Publish Online
2025-04-08