地球化学
地毬化學
지구화학
GEOCHIMICA
2001年
1期
102-105
,共4页
孙敏%李太枫%孙亚莉%聂宝符
孫敏%李太楓%孫亞莉%聶寶符
손민%리태풍%손아리%섭보부
锶温度计%珊瑚%西沙群岛
鍶溫度計%珊瑚%西沙群島
송온도계%산호%서사군도
西沙群岛现代滨珊瑚1976~1994年生长期间Sr含量的高精度热电离质谱测定结果表明,Sr含量随季节发生周期性的变化,并与当地同期实测海水月平均温度变化相吻合,其Sr含量与实测海水温度相关系数为-0.94。这18年冬夏季极端Sr含量与同期月温的相关系数可高达-0.98。Sr温度计误差小于0.5℃。
西沙群島現代濱珊瑚1976~1994年生長期間Sr含量的高精度熱電離質譜測定結果錶明,Sr含量隨季節髮生週期性的變化,併與噹地同期實測海水月平均溫度變化相吻閤,其Sr含量與實測海水溫度相關繫數為-0.94。這18年鼕夏季極耑Sr含量與同期月溫的相關繫數可高達-0.98。Sr溫度計誤差小于0.5℃。
서사군도현대빈산호1976~1994년생장기간Sr함량적고정도열전리질보측정결과표명,Sr함량수계절발생주기성적변화,병여당지동기실측해수월평균온도변화상문합,기Sr함량여실측해수온도상관계수위-0.94。저18년동하계겁단Sr함량여동기월온적상관계수가고체-0.98。Sr온도계오차소우0.5℃。
Strontium concentrations in modem Porites coral from XishaIslands were determined by precise thermal ionization mass spectrometry. The coral skeleton grew in the period from 1976 to 1994. The results indicate that the variability of coral Sr is periodically at annual cycles, and is in agreement with in situ measured sea surface temperature (SST). The calibration of Sr and SST with correlation coefficient r = -0. 94 has been developed at monthly sampling resolution. In addition, maximum and minimum seasonal monthly Sr and SST values were also regressed for the 18-year interval, and the correlation coefficient is -0. 98. The error of this Sr thermometer is better than 0. 5 ℃.