Correlation between delta O-18, Sr/Ca and Mg/Ca of coral Acropora and seawater temperature from coral culture experiments

ISL OpenIR > 青海盐湖研究所知识仓储

	Correlation between delta O-18, Sr/Ca and Mg/Ca of coral Acropora and seawater temperature from coral culture experiments
	Xiao YingKai 1,2,3; Liu WeiGuo 2; Ma YunQi 1; Zhang YanLing 1; He MaoYong 2; Luo ChongGuang 1; Liao QingQiang
	2014-05-01
发表期刊	SCIENCE CHINA-EARTH SCIENCES
卷号	57 期号:5 页码:1048-1060
关键词	Coral Culture Seawater Temperature Oxygen Isotope Microelement Ratio
摘要	To be used as proxies of seawater surface temperature (SST), the delta O-18(c) values and Sr/Ca and Mg/Ca ratios of scleractinian coral skeletons must be verified by coral culture experiments in the laboratory. This paper describes a coral culture experiment that was conducted at several seawater temperatures T (21-28A degrees C) using a tandem aquarium system and the new method for depositing coral skeletons grown under controlled conditions. The delta O-18(c) values and the Sr/Ca and Mg/Ca ratios of the cultured coral were measured. We concluded that the delta O-18(c) values and Sr/Ca and Mg/Ca ratios of the cultured coral are clearly correlated with T. The linear regression curve is delta O-18(c)(aEuro degrees)=-0.1427xT(A degrees C)-0.1495 (n=18, r=0.955, p < 0.0001), and the slope of -0.1427aEuro degrees/A degrees C is at the low end of the range of published values (-0.13- -0.29aEuro degrees/A degrees C). The Sr/Ca ratio decreases with increasing T, whereas the Mg/Ca ratio increases with increasing T, indicating a negative correlation between Sr/Ca and Mg/Ca. Their linear regression curves are Sr/Ca(mmol/mol)=-0.04156xT+10.59 (n=15, r=0.789, p < 0.005) and Mg/Ca (mmol/mol)=0.04974xT+2.339 (n=17, r=0.457, p < 0.05), respectively, which demonstrate that when Mg/Ca and Sr/Ca are increased by one unit, T increases by 5.19A degrees C and decreases by 15.62A degrees C, respectively. These variations are significantly lower than published values.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5687
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 3.Beihai Aquarium, Beihai 536000, Peoples R China
推荐引用方式 GB/T 7714	Xiao YingKai,Liu WeiGuo,Ma YunQi,et al. Correlation between delta O-18, Sr/Ca and Mg/Ca of coral Acropora and seawater temperature from coral culture experiments[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(5):1048-1060.
APA	Xiao YingKai.,Liu WeiGuo.,Ma YunQi.,Zhang YanLing.,He MaoYong.,...&Liao QingQiang.(2014).Correlation between delta O-18, Sr/Ca and Mg/Ca of coral Acropora and seawater temperature from coral culture experiments.SCIENCE CHINA-EARTH SCIENCES,57(5),1048-1060.
MLA	Xiao YingKai,et al."Correlation between delta O-18, Sr/Ca and Mg/Ca of coral Acropora and seawater temperature from coral culture experiments".SCIENCE CHINA-EARTH SCIENCES 57.5(2014):1048-1060.