St. John, Kristen E. K. (2004): Evidence that's an ocean apart; co-varying records of ice-rafted debris flux and Plio-Pleistocene bipolar ice sheet disintegration. Society for Sedimentary Geology, Tulsa, OK, United States, The Sedimentary Record, 2 (2), 4-8, georefid:2005-034918
Abstract:
The ice-rated debris (IRD) record from ODP sites 918 and 1101 provide evidence for bipolar climate connections during the Plio-Pleistocene. These IRD records were derived from distant but similarly situated glaciomarine settngs, the SE Greenland and the Antarctic Peninsula continental rises. Similar methods of sediment analysis were used in developing the temporal records of ice-rafted debris accumulation; at both sites IRD mass accumulation rates were used to represent the histories of IRD supply through time. Age-depth models were also similarly constructed, relying upon magnetostratigraphic and biostratigraphic age-depth data. Comparison of IRD records from these two sites reveals a shared pattern of long-term IRD flux. Three episodes of high IRD flux are at least twice as large as the average IRD peaks in the respective records. (modif. j. abstr.)
Coverage:
West: -70.1540 East: -38.3820 North: 63.0534 South: -64.2220
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