巴士海峡和菲律宾海沟两侧表层海水中δ^(14)C  

δ ^(14)C of surface seawater of Bashi Channel and both sides of Philippine Trench

作　　者：许志峰[1] 王明亮[1] 郭凤飞 

机构地区：[1]国家海洋局第三海洋研究所,厦门361005

出　　处：《台湾海峡》1993年第2期130-135,共6页Journal of Oceanography In Taiwan Strait

摘　　要：本文通过巴士海峡和菲律宾海沟两侧表层海水^(14)C 含量水平的测量,详细地介绍了海水^(14)C 含量测量的取样、制样流程、测量方法,并提供所获结果:测区高纬度海域表层海水^(14)C 含量水平略高于现代碳标准;低纬度海域表海水^(14)C 含量低于现代碳标准,是深层海水上涌与表层水混合的结果。从而说明海水的^(14)C 含量测量不仅有年代学意义,而且是海洋监测及海洋水文学研究的重要核素之一。文章还指出进一步开展菲律宾海沟中-南段海域表层、深层海水^(14)C 浓度变化梯度研究的必要性。Based on the level of ^(14)C in the surface water in the Bashi Channel and both side of thePhilippine Trench,this paper introduces in detail,the sampling,sample preparation and mea-surement for ^(14)C content measurement in seawater.The results indicate that ^(14)C content insurface seawater in the high-latitude waters is higher than that the modern carbon standard.However,the lower ^(14)C content in the low-latitude surface seawater than modern carbonstandard results from the mixing of the deepwater upwelling and the surface water.The re-sults that the measurement of ^(14)C content in seawater in of chronogical significance and that^(14)C acts as an important nuclide in marine monitoring and physical oceanography research.The paper points out that it is necessary to further study the gradient change of ^(14)C concen-tration in surface and deepwater in the middle and southern section of the philippine Trench.

关 键 词：海水 碳同位素 含量 海水 表层 

分 类 号：P734.21[天文地球—海洋化学]