Susceptibility of sediment cores of the Laptev Sea ...

• Main Authors: Nürnberg, Dirk, Fütterer, Dieter K, Niessen, Frank, Et Al.
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1995
• Subjects: Gravity corer Kiel type; Kasten corer; ARK-IX/4; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; laptev; Laptev Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.733565; https://doi.pangaea.de/10.1594/PANGAEA.733565

Marine geological investigations were performed across the Laptev Sea continental shelf and slope. Thirty sampling sites were selected covering a depth range of ca 3500 m. Maximum core recovery was 9 m. PARASOUND sub-bottom profiling was used for site surveying and provided important information on the depositional environment of the continental margin together with sedimentological and stratigraphical investigations.Undisturbed horizontal layering of the sea-floor sediments is a common feature for the Laptev Sea shelf. There is no indication for glaciation of the broad shelf region during the Last Glacial, since moraine deposits are missing. However, a high number of plough marks in places points to recent to sub-recent ice-erosion which has led to an intensive sediment reworking on the shelf. Several broadly incised river channels recorded near the shelf edge are related to Pleistocene drainage systems of large Siberian rivers which cut into the dry shelves during the Last Glacial Maximum and were ... : Supplement to: Nürnberg, Dirk; Fütterer, Dieter K; Niessen, Frank; et al. (1995): The depositional environment of the Laptev Sea continental margin: preliminiary results from the R/V Polarstern ARK IX-4 cruise. Polar Research, 14(1), 43-53 ...