Unknown
PANGAEA
In:
Supplement to: Elliot, Mary; Labeyrie, Laurent D; Bond, Gerard C; Cortijo, Elsa; Turon, Jean-Louis; Tisnerat, Nadine; Duplessy, Jean-Claude (1998): Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings. Paleoceanography, 13(5), 433-446, https://doi.org/10.1029/98PA01792
Publication Date:
2023-06-27
Description:
High-resolution records of coarse lithic content and oxygen isotope have been obtained in a piston core from the Irminger Basin. The last glacial period is characterized by numerous periods of increased iceberg discharges originating partly from Iceland and corresponding to millennial-scale instabilities of the coastal ice sheets and ice shelves in the Nordic area. A comparison with midlatitude sediment cores shows that ice-rafted material corresponding to the Heinrich events was deposited synchronously from 40° to 60°N. There are thus two oscillating systems: every 5-10 kyr massive iceberg armadas are released from large continental ice caps, whereas more frequent instabilities of the coastal ice sheets in the high latitude regions occur every 1.2-3.8 kyr. At the time of the Heinrich events the synchroneity of the response from all the northern hemisphere ice sheets attests the existence of strong interactions between the two systems.
Keywords:
94-609_Site; Age, 14C milieu/reservoir corrected (-400 yr); Age, dated; Age, dated standard deviation; COMPCORE; Composite Core; DEPTH, sediment/rock; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg94; Le Suroît; Longitude of event; North Atlantic; North Atlantic/FLANK; PALEOCINAT; PC; Piston corer; SU90-08; SU90-24; V23; V23-81; Vema
Type:
Dataset
Format:
text/tab-separated-values, 184 data points
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