# Green 2025: A possible volcanic origin for the Greenland ice core Pt anomaly near the Bølling-Allerød/Younger Dryas boundary > Charlotte E. Green, James U. L. Baldini, Richard J. Brown et al., 2025. 14 records on Mysteries Department cite it. The current volcanic reading of the… Source: https://mysteriesdept.com/sources/SRC0D51WX364VFQ/a-possible-volcanic-origin-for-the-greenland-ice-core-pt Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) --- [Sources](https://mysteriesdept.com/sources)[Younger Dryas impact hypothesis](https://mysteriesdept.com/mysteries/younger-dryas-impact)Green 2025 **0** # A possible volcanic origin for the Greenland ice core Pt anomaly near the Bølling-Allerød/Younger Dryas boundary Charlotte E. Green, James U. L. Baldini, Richard J. Brown et al., 2025. _PLOS One 20(9), e0331811_. New platinum-group element data from the Laacher See tephra rule out that eruption as the source of the GISP2 Pt spike. Confirms on the GICC05 timescale a lag of several decades between the Pt spike and the NGRIP sulphur spike, places the Younger Dryas onset at 12,870 ± 30 yr BP, and proposes that the 14-year Pt spike records fractionated gas condensates from an Icelandic subglacial or submarine fissure eruption. **Younger Dryas impact hypothesis** Articledoi: **[10.1371/journal.pone.0331811](https://doi.org/10.1371/journal.pone.0331811)** Checked against the original0 ## What it's used for here The current volcanic reading of the Pt anomaly, and the Greenland onset date. ## The document 21 pages [Pages][Text]Page 1 of 21 [![Page 1](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p1)1][![Page 2](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p2)2][![Page 3](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p3)3][![Page 4](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p4)4][![Page 5](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p5)5][![Page 6](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p6)6][![Page 7](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p7)7][![Page 8](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p8)8][![Page 9](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p9)9][![Page 10](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p10)10][![Page 11](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p11)11][![Page 12](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p12)12] ![Page 1 of A possible volcanic origin for the Greenland ice core Pt anomaly near the Bølling-Allerød/Younger Dryas boundary](https://mysteriesdept.com/files/v/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8/p1) The first 12 pages are shown; the rest are in the file. Text taken from the file. Check it against the page. ## Cited by on this site 14 records [Fractionated gas condensates from an unidentified volcanic eruption, probably an Icelandic subglacial or…](https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XJJP1YXQ/fractionated-gas-condensates-from-an-unidentified-volcanic) Answer ANS [The Laacher See eruption.](https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XKHY6GWP/the-laacher-see-eruption) Answer ANS [Platinum-group element geochemistry of the Laacher See tephra and the GISP2 Pt spike timing on GICC05 (Green et al. 2025)](https://mysteriesdept.com/datasets/DAT0D51XTMG1PST/platinum-group-element-geochemistry-of-the-laacher-see) Dataset DAT [Modern Pt spikes in ice and sediment are known from eruptions.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XK2A692F/modern-pt-spikes-in-ice-and-sediment-are-known-from) Evidence EVD [New platinum and iridium data from the tephra do not match the spike.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XKSR1MN2/new-platinum-and-iridium-data-from-the-tephra-do-not-match) Evidence EVD [No eruption has been identified for the interval.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XKA47XC2/no-eruption-has-been-identified-for-the-interval) Evidence EVD [Platinum-group patterns in submarine volcanic gas condensates (Niuatahi-Motutahi, Tonga) resemble the spike.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XJTG3XHH/platinum-group-patterns-in-submarine-volcanic-gas) Evidence EVD [The GISP2 platinum spike has no agreed terrestrial source.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XCFC149Z/the-gisp2-platinum-spike-has-no-agreed-terrestrial-source) Evidence EVD [The spike lasts about 14 years, which fits a fissure eruption better than an instantaneous event.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XD6T6GFP/the-spike-lasts-about-14-years-which-fits-a-fissure-eruption) Evidence EVD [The spike spans about 14 years.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XJAW7C5S/the-spike-spans-about-14-years) Evidence EVD [Abrupt onset of the Younger Dryas cold interval in Greenland](https://mysteriesdept.com/mysteries/younger-dryas-impact/events/EVT0D51X4DJ1WWX/abrupt-onset-of-the-younger-dryas-cold-interval-in-greenland) EVT [Green and colleagues argue for a volcanic source of the Greenland platinum spike](https://mysteriesdept.com/mysteries/younger-dryas-impact/events/EVT0D51X7TY6QBM/green-and-colleagues-argue-for-a-volcanic-source-of-the) EVT [The Younger Dryas impact hypothesis](https://mysteriesdept.com/mysteries/younger-dryas-impact) The mystery article MYS [What produced the platinum spike in the GISP2 ice core near the Younger Dryas onset?](https://mysteriesdept.com/mysteries/younger-dryas-impact/questions/QST0D51X92023AG/what-produced-the-platinum-spike-in-the-gisp2-ice-core-near) Question QST ## Cite it ``` Green, C. E., Baldini, J. U. L., Brown, R. J., Schmincke, H. U., Edmonds, M., & Meisel, T. C. (2025). A possible volcanic origin for the Greenland ice core Pt anomaly near the Bølling-Allerød/Younger Dryas boundary. PLOS One 20(9), e0331811. https://doi.org/10.1371/journal.pone.0331811 ``` [Read it free at doi.org](https://doi.org/10.1371/journal.pone.0331811)[Download PDF · 2.4 MB](https://mysteriesdept.com/files/d/7a0bf433c0d9a93f5b1e94ef8de24055a64d68704e9ed42cc05ea80d3dad1af8) Anyone can read it here; members can download it. Key **SRC** 0D51WX364VFQ Kind Journal article Rights CC-BY-4.0 Kept 27 Oct 2026 Checked Against the published article Added by [apollo](https://mysteriesdept.com/u/apollo) The record Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS. [CSL-JSON](https://mysteriesdept.com/sources/SRC0D51WX364VFQ/a-possible-volcanic-origin-for-the-greenland-ice-core-pt/csl.json)