Globally distributed iridium layer preserved within the Chicxulub impact structure

S. Goderis; H. Sato; L. Ferrière; B. Schmitz; D. Burney; P. Kaskes; J. Vellekoop; A. Wittmann; T. Schulz; S.M. Chernonozhkin; P. Claeys; S.J. de Graaff; T. Déhais; N.J. de Winter; M. Elfman; J.-G. Feignon; A. Ishikawa; C. Koeberl; P. Kristiansson; C.R. Neal; J.D. Owens; M. Schmieder; M. Sinnesael; F. Vanhaecke; S.J.M. van Malderen; T.J. Bralower; S.P.S. Gulick; D.A. Kring; C.M. Lowery; J.V. Morgan; J. Smit; M.T. Whalen

doi:10.1126/sciadv.abe3647

Globally distributed iridium layer preserved within the Chicxulub impact structure

S. Goderis, H. Sato, L. Ferrière, B. Schmitz, D. Burney, P. Kaskes, J. Vellekoop, A. Wittmann, T. Schulz, S.M. Chernonozhkin, P. Claeys, S.J. de Graaff, T. Déhais, N.J. de Winter, M. Elfman, J.-G. Feignon, A. Ishikawa, C. Koeberl, P. Kristiansson, C.R. NealJ.D. Owens, M. Schmieder, M. Sinnesael, F. Vanhaecke, S.J.M. van Malderen, T.J. Bralower, S.P.S. Gulick, D.A. Kring, C.M. Lowery, J.V. Morgan, J. Smit, M.T. Whalen

Vrije Universiteit Amsterdam

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core recovered by IODP-ICDP Expedition 364. The highest concentration of ultrafine meteoritic matter occurs in the post-impact sediments that cover the crater peak ring, just below the lowermost Danian pelagic limestone. Within years to decades after the impact event, this part of the Chicxulub impact basin returned to a relatively low-energy depositional environment, recording in unprecedented detail the recovery of life during the succeeding millennia. The iridium layer provides a key temporal horizon precisely linking Chicxulub to K-Pg boundary sections worldwide.

Original language	English
Article number	eabe3647
Pages (from-to)	1-14
Number of pages	14
Journal	Science advances
Volume	7
Issue number	9
DOIs	https://doi.org/10.1126/sciadv.abe3647
Publication status	Published - 24 Feb 2021

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Goderis, S., Sato, H., Ferrière, L., Schmitz, B., Burney, D., Kaskes, P., Vellekoop, J., Wittmann, A., Schulz, T., Chernonozhkin, S. M., Claeys, P., de Graaff, S. J., Déhais, T., de Winter, N. J., Elfman, M., Feignon, J.-G., Ishikawa, A., Koeberl, C., Kristiansson, P., ... Whalen, M. T. (2021). Globally distributed iridium layer preserved within the Chicxulub impact structure. Science advances, 7(9), 1-14. Article eabe3647. https://doi.org/10.1126/sciadv.abe3647

@article{c93d0619584e40908c05473b66542282,

title = "Globally distributed iridium layer preserved within the Chicxulub impact structure",

abstract = "The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core recovered by IODP-ICDP Expedition 364. The highest concentration of ultrafine meteoritic matter occurs in the post-impact sediments that cover the crater peak ring, just below the lowermost Danian pelagic limestone. Within years to decades after the impact event, this part of the Chicxulub impact basin returned to a relatively low-energy depositional environment, recording in unprecedented detail the recovery of life during the succeeding millennia. The iridium layer provides a key temporal horizon precisely linking Chicxulub to K-Pg boundary sections worldwide.",

author = "S. Goderis and H. Sato and L. Ferri{\`e}re and B. Schmitz and D. Burney and P. Kaskes and J. Vellekoop and A. Wittmann and T. Schulz and S.M. Chernonozhkin and P. Claeys and {de Graaff}, S.J. and T. D{\'e}hais and {de Winter}, N.J. and M. Elfman and J.-G. Feignon and A. Ishikawa and C. Koeberl and P. Kristiansson and C.R. Neal and J.D. Owens and M. Schmieder and M. Sinnesael and F. Vanhaecke and {van Malderen}, S.J.M. and T.J. Bralower and S.P.S. Gulick and D.A. Kring and C.M. Lowery and J.V. Morgan and J. Smit and M.T. Whalen",

note = "Publisher Copyright: Copyright {\textcopyright} 2021 The Authors, some rights reserved.",

year = "2021",

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day = "24",

doi = "10.1126/sciadv.abe3647",

language = "English",

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Goderis, S, Sato, H, Ferrière, L, Schmitz, B, Burney, D, Kaskes, P, Vellekoop, J, Wittmann, A, Schulz, T, Chernonozhkin, SM, Claeys, P, de Graaff, SJ, Déhais, T, de Winter, NJ, Elfman, M, Feignon, J-G, Ishikawa, A, Koeberl, C, Kristiansson, P, Neal, CR, Owens, JD, Schmieder, M, Sinnesael, M, Vanhaecke, F, van Malderen, SJM, Bralower, TJ, Gulick, SPS, Kring, DA, Lowery, CM, Morgan, JV, Smit, J & Whalen, MT 2021, 'Globally distributed iridium layer preserved within the Chicxulub impact structure', Science advances, vol. 7, no. 9, eabe3647, pp. 1-14. https://doi.org/10.1126/sciadv.abe3647

TY - JOUR

T1 - Globally distributed iridium layer preserved within the Chicxulub impact structure

AU - Goderis, S.

AU - Sato, H.

AU - Ferrière, L.

AU - Schmitz, B.

AU - Burney, D.

AU - Kaskes, P.

AU - Vellekoop, J.

AU - Wittmann, A.

AU - Schulz, T.

AU - Chernonozhkin, S.M.

AU - Claeys, P.

AU - de Graaff, S.J.

AU - Déhais, T.

AU - de Winter, N.J.

AU - Elfman, M.

AU - Feignon, J.-G.

AU - Ishikawa, A.

AU - Koeberl, C.

AU - Kristiansson, P.

AU - Neal, C.R.

AU - Owens, J.D.

AU - Schmieder, M.

AU - Sinnesael, M.

AU - Vanhaecke, F.

AU - van Malderen, S.J.M.

AU - Bralower, T.J.

AU - Gulick, S.P.S.

AU - Kring, D.A.

AU - Lowery, C.M.

AU - Morgan, J.V.

AU - Smit, J.

AU - Whalen, M.T.

PY - 2021/2/24

Y1 - 2021/2/24

N2 - The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core recovered by IODP-ICDP Expedition 364. The highest concentration of ultrafine meteoritic matter occurs in the post-impact sediments that cover the crater peak ring, just below the lowermost Danian pelagic limestone. Within years to decades after the impact event, this part of the Chicxulub impact basin returned to a relatively low-energy depositional environment, recording in unprecedented detail the recovery of life during the succeeding millennia. The iridium layer provides a key temporal horizon precisely linking Chicxulub to K-Pg boundary sections worldwide.

AB - The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago. Here, we report new data from four independent laboratories that reveal a positive iridium anomaly within the peak-ring sequence of the Chicxulub impact structure, in drill core recovered by IODP-ICDP Expedition 364. The highest concentration of ultrafine meteoritic matter occurs in the post-impact sediments that cover the crater peak ring, just below the lowermost Danian pelagic limestone. Within years to decades after the impact event, this part of the Chicxulub impact basin returned to a relatively low-energy depositional environment, recording in unprecedented detail the recovery of life during the succeeding millennia. The iridium layer provides a key temporal horizon precisely linking Chicxulub to K-Pg boundary sections worldwide.

UR - http://www.scopus.com/inward/record.url?scp=85102098183&partnerID=8YFLogxK

U2 - 10.1126/sciadv.abe3647

DO - 10.1126/sciadv.abe3647

M3 - Article

SN - 2375-2548

VL - 7

SP - 1

EP - 14

JO - Science advances

JF - Science advances

IS - 9

M1 - eabe3647

ER -

Globally distributed iridium layer preserved within the Chicxulub impact structure

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