A volcano or a meteorite? New evidence sheds light on puzzling discovery in Greenland's ice sheet

PHYSorg
Sep 19, 2025, 12:37 pm501 ptsHotTop
Buried deep in Greenland's ice sheet lies a puzzling chemical signature that has sparked intense scientific debate. A sharp spike in platinum concentrations, discovered in an ice core (a cylinder of ice drilled out of ice sheets and glaciers) and dated to around 12,800 years ago, has provided support for a…

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