Holocene records of foraminifera oxygen isotope and Mg/Ca-temperatures from MD98-2188

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 obliquilo...

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Bibliographic Details
Main Authors: Dang, Haowen, Jian, Zhimin, Bassinot, Franck, Qiao, Peijun, Cheng, Xinrong
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
AGE
Calculated from Mg/Ca ratios (Anand et al.
2003)
CALYPSO
Calypso Corer
DEPTH
sediment/rock
Globigerinoides ruber
δ18O
Holocene
IMAGES IV-IPHIS III
Isotope ratio mass spectrometry
Marion Dufresne (1995)
MD111
MD982188
MD98-2188
Pulleniatina obliquiloculata
Sea surface temperature
annual mean
SST
Thermocline
Thermocline water temperature
Western Philippine Sea
Pacific
Planktonic foraminifera
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.923621
https://doi.org/10.1594/PANGAEA.923621
Description
Summary: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.

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