Sediment budget of the Laptev Sea, sediment core PS51/092-12, PM9499, PM9462 (Table 2)

• Main Authors: Rachold, Volker, Grigoriev, Mikhail N, Bauch, Henning A
• Format: Dataset
• Language: English
• Published: PANGAEA 2002
• Subjects: Accumulation rate; mass; ACD; AGE; maximum/old; minimum/young; Arctic Coastal Dynamics; ARK-XIV/1b; CTD/Rosette; CTD-RO; Density; dry bulk; DEPTH; sediment/rock; Event label; Giant box corer; GKG; KAL; Kasten corer; Laptev Sea; Laptev Sea System; Latitude of event; Longitude of event; LSS; PM9462-1; PM9499-1; Polarstern; Professor Multanovskiy; PS51/092-12; PS51 Transdrift-V; Sedimentation rate; Sediment export; Transdrift-II; Arctic Ocean; laptev; Polarforschung; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.425281; https://doi.org/10.1594/PANGAEA.425281

This article presents a mass balance calculation of the sediment sources and sinks of the Laptev Sea. Sediment input into three regional sectors calculated on the basis of fluvial sediment discharge and coastal erosion sediment supply is compared with sediment output as estimated from sedimentation rates of well-dated marine sediment cores and data on sediment export to the central Arctic Ocean by sea ice and through bottom currents. Within the uncertainties of the calculations, input and output are very well balanced. The calculation reveals that the sediment budget of the Laptev Sea is mainly controlled by fluvial and coastal sediment input. The major fraction of the material is simply deposited on the Laptev Sea shelf. However, for the western Laptev Sea, where sedimentation rates are low due to the absence of large rivers, export by sea ice is the main output factor.