We present quality-controlled XRF scanning data for marine sediment cores from IODP Expedition 403 Eastern Fram Strait Paleoarchive, Bellsund Drift Site U1623 (76°31.8594′N, 12°34.4276′E) drilled at ~ 1,700–1,800 m water depth. Expedition 403 took place between June 4 and August 2, 2024. The cores were scanned in the fall of 2024 using the third generation Avaatech XRF core scanner at the IODP Gulf Coast Repository, College Station, Texas. Site 403-U1623 cores selected sections were scanned at a ~3 mm step. Data presented here are described in Gonzalez-Lanchas, Libman-Roshal et al. (under review).

Dr. Alba Gonzalez-Lanchas and Dr. Olga Libman-Roshal have contributed equally to the preparation of this work.Travel funding and Projects:• Travel funding for US-based scientists participating in XRF scanning, Web: https://www.nsf.gov/funding/opportunities/usssp-iodp-us-science-support-program-associated-international-ocean/6682/nsf14-549, Award: NSF in agreement with the US Science Support Program (USSSP) • Travel funding for LD, Web: https://www.iodp.org.au/, Award: Australian and New Zealand IODP Consortium (ANZIC) • Travel funding for AGL, Web: https://gotw.nerc.ac.uk/list_full.asp?pcode=NE%2FZ000300%2F1, Award: IODPUK NERC Postdoctoral Postcruise Moratorium Award NE/Z000300/1 • Travel funding for RGL, Web: https://www.iodp-italia.cnr.it/ https://dta.cnr.it/project/iodp3-icdp/, Award: MUR through ECORD-IODP Italia