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Article: Coralline Sr/Ca and Mg/Ca thermometer for the northern South China Sea: calibration and primary application high resolution on high-resolution SST reconstructing

TitleCoralline Sr/Ca and Mg/Ca thermometer for the northern South China Sea: calibration and primary application high resolution on high-resolution SST reconstructing
南海北部珊瑚SrPCa 和MgPCa 温度计及高分辨率SST 记录重建尝试
Authors
Keywords造礁珊瑚 (Porites)
Sr/Ca 和Mg/Ca 比值 (Sr/Ca and Mg/Ca ratios)
SST 记录 (SST record)
南海 (South China Sea)
Issue Date2004
PublisherKe xue chu ban she
Citation
Quaternary Sciences, 2004, v. 24 n. 3, p. 325-331 How to Cite?
AbstractThe method for precisely and simultaneously measuring the coralline Sr/Ca and Mg/Ca ratios was established using inductively coupled plasma atomic emission spectrometry (ICP-AES). Using this method, the high-resolution Sr/Ca and Mg/Ca ratios of two Porites lutea from Sanya, South Hainan Island and Xisha Islands were measured. By comparing to the instrumentally measured sea surface temperatures in these two areas, the coralline Sr/Ca thermometer and the Mg/Ca thermometer were calibrated. These two thermometers can provide SST records with an error bar < 0.2℃, and they are suitable for high-resolution SST reconstructions in these areas. Based on these two thermometers, two short SST records were reconstructed from two Holocene Porites corals of the northern South China Sea. The results indicated that the monthly summer SSTs in Xisha Islands at about 540 years ago (the Little Ice Age) were 1℃ lower than that at present, and the monthly summer SSTs in Sanya, southern Hainan Island at 6 500 years ago (the Megathermal) were about 1℃ to 1 5℃ higher than that at present.
利用全谱直读等离子体光谱(ICP2AES) 的分析方法精确分析了南海珊瑚的SrPCa 和MgPCa 比值,结合实测表层海水温度(SST),标定了海南岛南部三亚海域和西沙海域两个滨珊瑚的SrPCa 和MgPCa 温度计。在此基础上,尝试对两个南海北部全新世时期的珊瑚进行SST记录重建。结果显示约540aB.P. (小冰期) 西沙海域夏季月均SST 较现代低约1℃,而约6 500aB.P. (大暖期) 海南岛三亚海域夏季月均SST则高出现代1.0~1.5℃。
Persistent Identifierhttp://hdl.handle.net/10722/72811
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWei, GJen_HK
dc.contributor.authorYu, KFen_HK
dc.contributor.authorLi, XHen_HK
dc.contributor.authorZhao, JXen_HK
dc.contributor.authorSun, YLen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorNie, BFen_HK
dc.date.accessioned2010-09-06T06:45:19Z-
dc.date.available2010-09-06T06:45:19Z-
dc.date.issued2004en_HK
dc.identifier.citationQuaternary Sciences, 2004, v. 24 n. 3, p. 325-331en_HK
dc.identifier.issn1001-7410-
dc.identifier.urihttp://hdl.handle.net/10722/72811-
dc.description.abstractThe method for precisely and simultaneously measuring the coralline Sr/Ca and Mg/Ca ratios was established using inductively coupled plasma atomic emission spectrometry (ICP-AES). Using this method, the high-resolution Sr/Ca and Mg/Ca ratios of two Porites lutea from Sanya, South Hainan Island and Xisha Islands were measured. By comparing to the instrumentally measured sea surface temperatures in these two areas, the coralline Sr/Ca thermometer and the Mg/Ca thermometer were calibrated. These two thermometers can provide SST records with an error bar < 0.2℃, and they are suitable for high-resolution SST reconstructions in these areas. Based on these two thermometers, two short SST records were reconstructed from two Holocene Porites corals of the northern South China Sea. The results indicated that the monthly summer SSTs in Xisha Islands at about 540 years ago (the Little Ice Age) were 1℃ lower than that at present, and the monthly summer SSTs in Sanya, southern Hainan Island at 6 500 years ago (the Megathermal) were about 1℃ to 1 5℃ higher than that at present.-
dc.description.abstract利用全谱直读等离子体光谱(ICP2AES) 的分析方法精确分析了南海珊瑚的SrPCa 和MgPCa 比值,结合实测表层海水温度(SST),标定了海南岛南部三亚海域和西沙海域两个滨珊瑚的SrPCa 和MgPCa 温度计。在此基础上,尝试对两个南海北部全新世时期的珊瑚进行SST记录重建。结果显示约540aB.P. (小冰期) 西沙海域夏季月均SST 较现代低约1℃,而约6 500aB.P. (大暖期) 海南岛三亚海域夏季月均SST则高出现代1.0~1.5℃。-
dc.languagechien_HK
dc.publisherKe xue chu ban she-
dc.relation.ispartofQuaternary Sciencesen_HK
dc.relation.ispartof第四纪研究-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject造礁珊瑚 (Porites)-
dc.subjectSr/Ca 和Mg/Ca 比值 (Sr/Ca and Mg/Ca ratios)-
dc.subjectSST 记录 (SST record)-
dc.subject南海 (South China Sea)-
dc.titleCoralline Sr/Ca and Mg/Ca thermometer for the northern South China Sea: calibration and primary application high resolution on high-resolution SST reconstructingen_HK
dc.title南海北部珊瑚SrPCa 和MgPCa 温度计及高分辨率SST 记录重建尝试-
dc.typeArticleen_HK
dc.identifier.emailSun, Y: ysun@graduate.hku.hken_HK
dc.identifier.emailSun, M: minsun@hku.hken_HK
dc.identifier.email第四纪研究, 2004, 第24卷 第3期, pp. 325-331-
dc.identifier.authoritySun, M=rp00780en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros108807en_HK
dc.identifier.volume24-
dc.identifier.issue3-
dc.identifier.spage325-
dc.identifier.epage331-
dc.publisher.placeChina-

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