Descriptions of 104 gravity and piston sediment cores from POLARSTERN expedition ARK-VIII/3 to the Arctic Ocean ...

• Main Authors: Fütterer, Dieter K, Shipboard Scientific Party
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2009
• Subjects: Giant box corer; Gravity corer Kiel type; Giant piston corer; MultiCorer; Kasten corer; ARK-VIII/3; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Arctic Ocean; Nansen Basin
• Online Access: https://dx.doi.org/10.1594/pangaea.711051; https://doi.pangaea.de/10.1594/PANGAEA.711051

Sediment descriptions and lithostratigraphy (chapter 6.4)NANSEN BASINThe upperrnost 20-50 cm of sedirnents in the Nansen Basin norrnally cornprise soft dark brown, brown-grayish and brown clay. Except for the toprnost clay, the four piston cores retrieved, contained quite different lithologies: a rnuddy diarnicton with outsized clasts (PS2157-6), sandy-silt beds alternating with clay beds (PS2159-6), and silty clay beds of brownish and grayish colours (PS2161-3). Core PS2208-3 was retrieved frorn a plateau on a searnount. The plateau was serni-encircled by hills. The upper 250 cm of this core cornprise brown and olive brown clays. Below these are several sandlayers and a 74 cm thick unit of a sandy mud with rnud-clasts up to 20 cm in diameter.GAKKEL RIDGEThe uppermost 20-50 cm of sediments on the Gakkel Ridge comprise soft dark brown, brown, grayish brown clay. In most of the cores there are two horizons of brown clay separated by olive brown clay. The upper horizon is darker. The older stratigraphy is ... : Supplement to: Fütterer, Dieter K (1992): ARCTIC 91: Die Expedition ARK-VIII/3 mit FS Polarstern 1991 (ARCTIC 91: The Expedition ARK-VIII/3 of RV Polarstern in 1991). Berichte zur Polarforschung = Reports on Polar Research, 107, 267 pp ...