Particulate matter in pack ice of the Beaufort Gyre
Fine sediment occurred in very small patches of turbid ice, as thin spotty surface layers, in mud pellets or in old snowdrifts. The latter were widespread south of 74??N, containing an estimated 22 tonnes of silt and clay km-2. Average particle concentration in sea ice (40 mg1-1) was much higher than in sea water (0.8 mg 1 -1) or in new snow. Assuming one-third of the load is released each year, the estimated deposition rate would equal the measured Holocene rate (~2cm 1000 year-1). Therefore, modern sea-ice rafting represents a substantial fraction of the total Arctic Ocean sediment budget. -from Authors
Citation Information
Publication Year | 1993 |
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Title | Particulate matter in pack ice of the Beaufort Gyre |
Authors | E. Reimnitz, P. W. Barnes, W. S. Weber |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Glaciology |
Index ID | 70018330 |
Record Source | USGS Publications Warehouse |