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

Leg/Site/Hole:
ODP 152
ODP 178
ODP 178 1101
ODP 152 918
Identifier:
2005-034918
georefid

Creator:
St. John, Kristen E. K.
Appalachian State University, Department of Geology, Boone, NC, United States
author

Identification:
Evidence that's an ocean apart; co-varying records of ice-rafted debris flux and Plio-Pleistocene bipolar ice sheet disintegration
2004
The Sedimentary Record
Society for Sedimentary Geology, Tulsa, OK, United States
2
2
4-8
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.)
English
Serial
Coverage:Geographic coordinates:
North:63.0534
West:-70.1540East: -38.3820
South:-64.2220

Quaternary geology; Antarctica; Arctic region; calving; Cenozoic; depth; glacial geology; glaciation; Greenland; ice; ice rafting; ice sheets; Leg 152; Leg 178; magnetostratigraphy; models; Neogene; North Atlantic Deep Water; Ocean Drilling Program; ODP Site 1101; ODP Site 918; paleoclimatology; Pleistocene; Pliocene; Quaternary; Southern Ocean; temporal distribution; Tertiary;

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