Search for a meteoritic component within the impact melt rocks of the Chicxulub impact structure peak ring, Mexico

Funding

This paper is dedicated to the memory of Gunter W. Lugmair (1940-2021), for his pioneering work on isotopic analysis of the K-Pg boundary and in cosmochemistry in general. The Chicxulub drilling was funded by the IODP as Expedition 364, with cofunding from ICDP. Expedition 364 was implemented by ECORD, with contributions and logistical support from the Yucata ' n state government and Universidad Nacional Auto ' noma de Me ' xico. Partial funding was provided by the University of Vienna doctoral school IK-1045 (P.I.: C.K.). We thank Peter Nagl and Marianne Schwarzinger for XRF sample preparation and analysis, and Dieter Mader for INAA and data processing. The AMGC team is supported by Research Foundation Flanders (FWO-Vlaanderen; project G0A6517N) and BELSPO (project Chicxulub); P.K. is an FWO PhD fellow (project 11E6619N; 11E6621N). S.G. and P.C. thank the EoS project "ET-HoME" for support and the VUB Strategic Research Program. P.C. thanks the FWO -Hercules Program for financing the lXRF instrument at the VUB. This is contribution 70 of the DFG-funded ICPMS facilities at the Steinmann-Institute, University of Bonn. We thank Martin Schmieder and an anonymous reviewer for detailed and constructive reviews, as well as Marc Norman for editorial handling.