(Table1) Sedimentation rates and age-control points form ODP Hole 152-919A ...

• Main Authors: St. John, Kristen E Kudless, Flower, Benjamin P, Krissek, Lawrence A
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: DEPTH, sediment/rock; Marine isotopic stage; Depth, composite; Age model; Sedimentation rate; Drilling/drill rig; Calculated; Leg152; Joides Resolution; Ocean Drilling Program ODP; Iceberg*; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.856547; https://doi.pangaea.de/10.1594/PANGAEA.856547

Planktic d18O and d13C records and point count records of biogenic, volcanic, and nonvolcanic terrigenous [ice-rafted debris (IRD)] sediment components from Hole 919A in the Irminger basin, northern North Atlantic provide a comprehensive dataset from which a paleoceanographic reconstruction for the last 630 kyr has been developed. The paleoceanographic evolution of the Irminger basin during this time contains both long-term patterns and significant developmental steps. One long-term pattern observed is the persistent deposition of hematite-stained ice-rafted debris. This record suggests that the modern and late Pleistocene discharges of icebergs from northern redbed regions to the Irminger Sea lie in the low end of the range observed over the last 630 kyr. In addition, Arctic front fluctuations appear to have been the main controlling factor on the long-term accumulation patterns of IRD and planktic biogenic groups. The Hole 919A sediment record also contains a long-term association between felsic volcanic ... : Supplement to: St. John, Kristen E Kudless; Flower, Benjamin P; Krissek, Lawrence A (2004): Evolution of iceberg melting, biological productivity, and the record of Icelandic volcanism in the Irminger basin since 630 ka. Marine Geology, 212(1-4), 133-152 ...