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Holocene cirque glacier activity in western Spitsbergen, Svalbard: sediment records from proglacial Linnévatnet

Center for Geochronological Research, INSTAAR, Department of Geological Sciences, University of Colorado, Boulder, CO 80309–0450, USA; Department of Geology, 190 Overman Hall, Bowling Green State University, Bowling Green, OH 43403, USA

A. Werner

Department of Earth and Environment, Mount Holyoke College, South Hadley, MA 01075, USA

G. H. Miller

Center for Geochronological Research, INSTAAR, Department of Geological Sciences, University of Colorado, Boulder, CO 80309–0450, USA

Holocene glacial variations of a presently ice-free cirque in western Spitsbergen are inferred from sediment records from the proglacial lake Linnévatnet. Glaciation is indicated in the core records by increased intensity of laminae derived from the cirque inflow and by increase in sediment accumulation rate. Radiocarbon ages on terrestrial plant macrofossils limit the onset of glaciation in the cirque to within the last six centuries. No evidence for earlier glaciation is recognized in the core records, indicating that the threshold for glaciation in the cirque was not reached during prior Neoglacial advances. Local climate events favouring glacier expan sion were either of greater magnitude or of longer duration during the ‘Little Ice Age’ than at any other time during the Holocene.

Key Words: Glacier history • Svalbard • lake sediments • ‘Little Ice Age’ • Holocene

The Holocene, Vol. 10, No. 5, 555-563 (2000)
DOI: 10.1191/095968300667351697


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