Age models and stable isotopes of sediment cores from the northern seas ...

• Main Author: Köhler, Sabine E I
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1992
• Subjects: Box corer; Giant box corer; Piston corer Kiel type; Gravity corer Kiel type; CTD/Rosette; Kasten corer; GIK-cruise; HM82/83; POS158/1; M2/1; M2/2; HM49; HM52; HM57; HM58; ARK-I/3; ARK-II/4; ARK-II/5; ARK-IV/3; ARK-VII/1; Håkon Mosby; Poseidon; Meteor 1986; Polarstern; Helmholtz Centre for Ocean Research Kiel GEOMAR; Quaternary Environment of the Eurasian North QUEEN; Arctic; Arctic Ocean; Fram Strait; Greenland; Greenland Sea; Nordpol*
• Online Access: https://dx.doi.org/10.1594/pangaea.728605; https://doi.pangaea.de/10.1594/PANGAEA.728605

Oxygen and carbon isotope measurements were carried out on tests of planktic foraminifers N. pachyderma (sin.) from eight sediment cores taken from the eastern Arctic Ocean, the Fram Strait, and the lceland Sea, in order to reconstruct Arctic Ocean and Norwegian-Greenland Sea circulation patterns and ice covers during the last 130,000 years. In addition, the influence of ice, temperature and salinity effects on the isotopic signal was quantified. Isotope measurements on foraminifers from sediment surface samples were used to elucidate the ecology of N. pachyderma (sin.). Changes in the oxygen and carbon isotope composition of N. pachyderma (sin.) from sediment surface samples document the horizontal and vertical changes of water mass boundaries controlled by water temperature and salinity, because N. pachyderma (sin.) shows drastic changes in depth habitats, depending on the water mass properties. It was able to be shown that in the investigated areas a regional and spatial apparent increase of the ice ... : Supplement to: Köhler, Sabine E I (1992): Spätquartäre paläo-ozeanographische Entwicklung des Nordpolarmeeres anhand von Sauerstoff- und Kohlenstoff-Isotopenverhältnissen der planktischen Foraminifere. GEOMAR Report, GEOMAR Research Center for Marine Geosciences, Christian Albrechts University in Kiel, 13, 104 pp ...