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 Defant2026-04-14 08:29:152026-04-14 08:31:57A 12,800-year-old layer with cometary dust, microspherules, and platinum anomaly recorded in multiple cores from Baffin Bay (expanded)
