Dang, Haowen; Jian, Zhimin; Bassinot, Franck; Qiao, Peijun; Cheng, Xinrong (2020): Holocene records of foraminifera oxygen isotope and Mg/Ca-temperatures from MD98-2188 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.923621
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Abstract:
The Holocene variability in sea surface and thermocline water temperatures (SST and TWT) in the Indo-Pacific Warm Pool (IPWP) has been reconstructed by shell Mg/Ca of two planktonic foraminifera species, the mixed-layer dweller Globigerinoides ruber and the thermocline dweller Pulleniatina obliquiloculata, from sediments of Core MD98-2188 (14.82°N, 123.49°E, 730 m water depth) recovered in the western tropical Philippine Sea. Afterward the Younger Dryas interval (YD), SST warmed gradually till ~10 ka and remained approximately constant afterwards, but TWT rose more rapidly to a peak between ~12 and ~10 ka and then declined by ~1.5°C through the Holocene. The trend of TWT closely followed the boreal summer insolation and could be correlated to tropical climate changes represented by southward movement of the Inter-tropical Convergence Zone (ITCZ) and related changes in East Asian monsoons.
Supplement to:
Dang, Haowen; Jian, Zhimin; Bassinot, Franck; Qiao, Peijun; Cheng, Xinrong (2012): Decoupled Holocene variability in surface and thermocline water temperatures of the Indo-Pacific Warm Pool. Geophysical Research Letters, 39(1), https://doi.org/10.1029/2011GL050154
Coverage:
Latitude: 14.820000 * Longitude: 123.490000
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 3.905 m
Event(s):
MD98-2188 (MD982188) * Latitude: 14.820000 * Longitude: 123.490000 * Elevation: -730.0 m * Recovery: 16.33 m * Campaign: MD111 (IMAGES IV-IPHIS III) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Dang, Haowen | Geocode | |
| 2 | AGE | Age | ka BP | Dang, Haowen | Geocode | |
| 3 | Globigerinoides ruber, δ18O | G. ruber δ18O | ‰ PDB | Dang, Haowen | Isotope ratio mass spectrometry | |
| 4 | Sea surface temperature, annual mean | SST (1-12) | °C | Dang, Haowen | Calculated from Mg/Ca ratios (Anand et al., 2003) | based on G. ruber Mg/Ca |
| 5 | Pulleniatina obliquiloculata, δ18O | P. obliquiloculata δ18O | ‰ PDB | Dang, Haowen | Isotope ratio mass spectrometry | |
| 6 | Thermocline water temperature | TWT | °C | Dang, Haowen | Calculated from Mg/Ca ratios (Anand et al., 2003) | based on P. obliquiloculata Mg/Ca |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
770 data points