000160999 001__ 160999
000160999 005__ 20251017144632.0
000160999 0247_ $$2doi$$a10.1038/s41467-025-58112-x
000160999 0248_ $$2sideral$$a144164
000160999 037__ $$aART-2025-144164
000160999 041__ $$aeng
000160999 100__ $$aSato, Honami
000160999 245__ $$aProlonged 187Os/188Os excursion implies hydrothermal influence after the Chicxulub impact in the Gulf of Mexico
000160999 260__ $$c2025
000160999 5060_ $$aAccess copy available to the general public$$fUnrestricted
000160999 5203_ $$aThe 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.
000160999 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2022-136233NB-I00$$9info:eu-repo/grantAgreement/ES/DGA/E33-23R
000160999 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000160999 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000160999 700__ $$aIshikawa, Akira
000160999 700__ $$0(orcid)0000-0003-4632-533X$$aArenillas, Ignacio$$uUniversidad de Zaragoza
000160999 700__ $$0(orcid)0000-0003-0063-8752$$aArz, José A.$$uUniversidad de Zaragoza
000160999 700__ $$0(orcid)0000-0001-7302-5901$$aGilabert, Vicente
000160999 700__ $$aClaeys, Philippe
000160999 700__ $$aGoderis, Steven
000160999 700__ $$aLowery, Christopher M.
000160999 700__ $$aGulick, Sean P. S.
000160999 700__ $$aMorgan, Joanna V.
000160999 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000160999 773__ $$g16 (2025), 2901 [11 pp.]$$tNature communications$$x2041-1723
000160999 8564_ $$s1211275$$uhttps://zaguan.unizar.es/record/160999/files/texto_completo.pdf$$yVersión publicada
000160999 8564_ $$s2739979$$uhttps://zaguan.unizar.es/record/160999/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000160999 909CO $$ooai:zaguan.unizar.es:160999$$particulos$$pdriver
000160999 951__ $$a2025-10-17-14:27:09
000160999 980__ $$aARTICLE