Distribution of clay minerals in surface sediments of the Eurasian Arctic Ocean ...

• Main Authors: Wahsner, Monika, Müller, Claudia, Stein, Ruediger, Ivanov, Gennadiy I, Levitan, Mikhail A, Shelekhova, E S, Tarasov, Gennadiy A
• Format: Dataset
• Language: English
• Published: PANGAEA 1999
• Subjects: LATITUDE; LONGITUDE; Event label; Elevation of event; DEPTH, sediment/rock; Smectite; Illite; Chlorite; Kaolinite; Kaolinite/Chlorite ratio; Smectite/Illite ratio; van Veen Grab; Box corer Reineck; Water sample; Gravity corer Kiel type; Box corer; Kasten corer RUS; Giant box corer; MultiCorer; Gravity corer Russian type; Kasten corer; Giant piston corer; CTD/Rosette; Multiple investigations; Mooring long time; X-ray diffraction TEXTUR, clay fraction; Calculated; AG80; RUS_unspec; DM49; ODEN-96; PL-1994; ARK-IV/3; ARK-VIII/2; ARK-VIII/3; ARK-IX/4; ARK-XI/1; Akademik Golitsyn; Dmitry Mendeleev; Oden; Professor Logachev; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; Arctic Ocean; East Siberian Sea; Kara Sea; laptev; Laptev Sea; Svalbard
• Online Access: https://dx.doi.org/10.1594/pangaea.57249; https://doi.pangaea.de/10.1594/PANGAEA.57249

Clay-mineral distributions in the Arctic Ocean and the adjacent Eurasian shelf areas are discussed to identify source areas and transport pathways of terrigenous material in the Arctic Ocean. The main clay minerals in Eurasian Arctic Ocean sediments are illite and chlorite. Smectite and kaolinite occur in minor amounts in these sediments, but show strong variations in the shelf areas. These two minerals are therefore reliable in reconstructions of source areas of sediments from the Eurasian Arctic. The Kara Sea and the western part of the Laptev Sea are enriched in smectite, with highest values of up to 70% in the deltas of the Ob and Yenisey rivers. Illite is the dominant clay mineral in all the investigated sediments except for parts of the Kara Sea. The highest concentrations with more than 70% illite occur in the East Siberian Sea and around Svalbard. Chlorite represents the clay mineral with lowest concentration changes in the Eastern Arctic, ranging between 10 and 25%. The main source areas for ... : Supplement to: Wahsner, Monika; Müller, Claudia; Stein, Ruediger; Ivanov, Gennadiy I; Levitan, Mikhail A; Shelekhova, E S; Tarasov, Gennadiy A (1999): Clay-mineral distribution in surface sediments of the Eurasian Arctic Ocean and continental margin as indicator for source areas and transport pathways - a synthesis. Boreas, 28(1), 215-233 ...