de.pangaea.dataset693897 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-05-01T04:36:12Z https://doi.pangaea.de/10.1594/PANGAEA.693897 2007-01-01 publication https://doi.org/10.1594/PANGAEA.693897 Wei, Gangjian https://orcid.org/0000-0002-9620-0087 information author Deng, Wenfeng https://orcid.org/0000-0002-1722-8031 information author Liu, Ying https://orcid.org/0000-0003-1065-1811 information author Li, Xianhua author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Wei, Gangjian; Deng, Wenfeng; Liu, Ying; Li, Xianhua (2007): High-resolution sea surface temperature records derived from foraminiferal Mg/Ca ratios during the last 260 ka in the northern South China Sea. Palaeogeography, Palaeoclimatology, Palaeoecology, 250(1-4), 126-138, https://doi.org/10.1016/j.palaeo.2007.03.005 High-resolution sea surface temperatures (SST) derived from Mg/Ca ratios of Globeriginoides sacculifer at ODP Site 1144 were reported to reveal the SST changes during the last 260 ka in the northern South China Sea (SCS). The results indicate an average Holocene SST of about 26.7 °C, about 3.6 °C increase from LGM to the Holocene, and higher temperature during MIS 5.5 than the Holocene. These agree well with other foraminifer Mg/Ca and Uk 37 SST records in this region. The Mg/Ca records suggest warmer SSTs during MIS 3 in the northern SCS, compared with those in the eastern Pacific. Strong East Asian summer monsoon during MIS 3 indicated by paleoclimate records from nearby continents may account for it. Step-wise increases during terminations are shown in our SST record, and the beginning of deglacial warming occurs at about 19 ka, which precedes the change of oxygen isotopes, suggesting a tropical driven forcing for the SST change in the northern SCS. This is further supported by a robust semiprecessional cycle centering at ~9.1 ka in the spectra of the SST record, which is absent in that of the oxygen isotopes. However, tropical driven forcing seems not to be indicated in another Mg/Ca SST record in the northern SCS [Oppo, D.W. and Sun, Y.B., 2005. Amplitude and timing of sea-surface temperature change in the northern South China Sea: Dynamic link to the East Asian monsoon. Geology, 33 (10): 785–788, doi:10.1130/G21867.1]. The discrepancy may be caused by different post-deposition dissolutions of foraminifer tests at these two sites. Details about the modification of foraminifer Mg/Ca ratios after burial, however, are not well known in this region, and further studies are needed. completed Wei, Gangjian https://orcid.org/0000-0002-9620-0087 information principalInvestigator ODP Ocean Drilling Program theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 117.41888 117.41888 20.05298 20.05298 1999-03-13T17:45:00 1999-03-16T06:55:00 1.0 170.43 Ages follows Age model of Buehring et al. (2004) doi:10.2973/odp.proc.sr.184.205.2004 DEPTH, sediment/rock physicalMeasurement m m AGE physicalMeasurement ka BP ka BP Magnesium/Calcium ratio thematicClassification Inductively coupled plasma atomic emission spectroscope (ICP-AES) Sea surface temperature, annual mean physicalMeasurement Calculated from Mg/Ca ratios (Nürnberg et al. 1996) °C °C text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.693897?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 184-1144A * LATITUDE: 20.052980 * LONGITUDE: 117.418880 * DATE/TIME START: 1999-03-13T17:45:00 * DATE/TIME END: 1999-03-16T06:55:00 * ELEVATION: -2035.7 m * PENETRATION: 452.8 m * RECOVERY: 468.88 m * LOCATION: South China Sea * CAMPAIGN: Leg184 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 48 cores; 452.8 m cored; 0 m drilled; 103.6 % recovery 1999-03-13T17:45:00