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Wang, Xingxing; Jian, Zhimin; Lücke, Andreas; Wang, Yue; Dang, Haowen; Mohtadi, Mahyar (2018): Temperature reconstructations of sediment core SO139-74KL off southern Sumatra. PANGAEA,, Supplement to: Wang, Xingxing; Jian, Zhimin; Lückge, Andreas; Wang, Yue; Dang, Haowen; Mohtadi, Mahyar (2018): Precession-paced thermocline water temperature changes in response to upwelling conditions off southern Sumatra over the past 300,000 years. Quaternary Science Reviews, 192, 123-134,

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Sea surface temperature and thermocline water temperature variabilities over the past 300 kyr are reconstructed by using foraminiferal Mg/Ca-paleothermometry in sediment core SO139-74 KL off southern Sumatra (632.60S, 103500E; 1690m water depth). Whereas SST shows a clear glacialinterglacial cycle, TWT displays a predominant cycle at the precession band. Generally, the TWT record varies with total organic carbon content, revealing that similar to today, TWT and upwelling intensity off southern Sumatra vary in concert during the past 300 kyr. The lack of glacial-interglacial variability in the TWT suggests a limited role of glacial boundary conditions, such as changing sea level and ice volume, on the upwelling intensity in this region. The vertical gradients of upper water δ18O and temperature at this site also reveal precessional cyclicity. Our model simulation of air-sea interaction further supports the low TWTs during periods of enhanced upwelling and precession minimum.
Latitude: -6.543000 * Longitude: 103.833000
Minimum DEPTH, sediment/rock: 0.15 m * Maximum DEPTH, sediment/rock: 19.21 m
SO139-74KL * Latitude: -6.543000 * Longitude: 103.833000 * Elevation: -1690.0 m * Recovery: 19.3 m * Location: Indonesia * Campaign: SO139 (GINCO 3) * Basis: Sonne * Method/Device: Piston corer (BGR type) (KL)
1548 data points

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