The Last Deglaciation of the Southeastern Sector of the Scandinavian Ice Sheet
2006
Rinterknecht, V. R. | Clark, P. U. | Raisbeck, G. M. | Yiou, F. | Bitinas, A. | Brook, E. J. | Marks, L. | Zelcs, V. | Lunkka, J. P. | Pavlovskaya, I. E. | Piotrowski, J. A. | Raukas, A.
The Scandinavian Ice Sheet (SIS) was an important component of the global ice sheet system during the last glaciation, but the timing of its growth to or retreat from its maximum extent remains poorly known. We used 115 cosmogenic beryllium-10 ages and 70 radiocarbon ages to constrain the timing of three substantial ice-margin fluctuations of the SIS between 25,000 and 12,000 years before the present. The age of initial deglaciation indicates that the SIS may have contributed to an abrupt rise in global sea level. Subsequent ice-margin fluctuations identify opposite mass-balance responses to North Atlantic climate change, indicating differing ice-sheet sensitivities to mean climate state.
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