Mid- to Late Pleistocene Ice Drift in the Western Arctic Ocean: Evidence for a Different Circulation in the Past
- 4 July 1997
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 277 (5322) , 74-78
- https://doi.org/10.1126/science.277.5322.74
Abstract
The provenance of ice-rafted debris (IRD) in four Arctic sediment cores implies that icebergs from the northwestern Laurentide ice sheets drifted across the western Arctic Ocean along the 180°–0° meridian toward Fram Strait during mid- to late Pleistocene deglaciations within the last 700,000 years. This iceberg drift was different from the present-day Beaufort Gyre circulation and resembled a dislocated transpolar drift (TPD). Sea ice mainly followed the iceberg trajectories but also frequently drifted from the Russian shelves eastward into the Amerasian Basin.Keywords
This publication has 20 references indexed in Scilit:
- Origin of ice‐rafted debris: Pleistocene paleoceanography in the western Arctic OceanPaleoceanography and Paleoclimatology, 1996
- A Statistical Approach to Source Determination of Lithic and Fe Oxide Grains: An Example from the Alpha Ridge, Arctic OceanJournal of Sedimentary Research, 1996
- Interactions of frazil and anchor ice with sedimentary particles in a flumeCold Regions Science and Technology, 1993
- Late Pleistocene stratigraphy and micropaleontology of a part of the Eurasian Basin (=Fram Basin), central Arctic OceanMarine Micropaleontology, 1992
- Effects of ice coverage and ice-rafted material on sedimentation in the Fram StraitNature, 1991
- Sedimentary facies and processes of deposition: Ice Island cores, Axel Heiberg Shelf, Canadian Polar Continental MarginMarine Geology, 1990
- Nordic Seas surface ice drift reconstructions: evidence from ice rafted coal fragments during oxygen isotope stage 6Geological Society, London, Special Publications, 1990
- Sea Ice Sediment Entrainment and Rafting in the ArcticJournal of Sedimentary Research, 1989
- Revised Magnetostratigraphies Confirm Low Sedimentation Rates in Arctic Ocean CoresQuaternary Research, 1988
- Sediments of the Lomonosov Ridge and Makarov Basin: A Pleistocene stratigraphy for the North PoleGSA Bulletin, 1985