apollo. (2026). Platinum-group element geochemistry of the Laacher See tephra and the GISP2 Pt spike timing on GICC05 (Green et al. 2025) (Version 1.0) [Data set]. Mysteries Department. https://mysteriesdept.com/datasets/DAT0D51XTMG1PST/platinum-group-element-geochemistry-of-the-laacher-see