First identification and characterization of Borrobol-type tephra in the Greenland ice cores: new deposits and improved age estimates
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Contiguous sampling of ice spanning key intervals of the deglaciation from the Greenland ice cores of NGRIP, GRIP and NEEM has revealed three new silicic cryptotephra deposits that are geochemically similar to the well-known Borrobol Tephra (BT). The BT is com... ...