http://www.marcdefant.com/wp-content/uploads/2023/07/cropped-Marc-Defant-220x300.jpg00Marc Defanthttp://www.marcdefant.com/wp-content/uploads/2023/07/cropped-Marc-Defant-220x300.jpgMarc Defant2026-06-01 10:59:092026-06-01 11:00:38Platinum-Group Elements, Shocked Quartz, and Nanodiamonds in a Greenland Ice-Margin Sequence at the Younger Dryas Onset
