Zuraida, Rina (2011) Indonesian Throughflow Variability on Sub-OrbitalTimescales during Marine Isotope Stage 3:Geochemical Aspects. (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, Germany, 207 pp.

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Abstract

This thesis examines variability of the Indonesian Throughflow (ITF) and factors controlling its variability during Marine Isotope Stage 3 (~24–62 ka B.P.). Proxy records from Cores MD01-2378 (mixing zone between ITF and Indian Ocean waters) and 185 SO185-18460 (ITF) are developed and examined. The main objectives of this study are (1) to detect the amplitude and frequency of changes in surface and thermocline temperature and 18O within the main ITF outflow during MIS 3, (2) to test the hypothesis that a slow down in thermohaline circulation during stadials reduces the cool and fresh ITF thermocline flow, (3) to test modeling predictions that a reduction in ITF thermocline flow during stadials alters hydrographic profiles in the eastern Indian Ocean and leads to a warmer and saltier tropical Indian Ocean, and (4) to assess linkages between high latitude and tropical climate evolution.

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