Boron isotopic compositions of brine, sediments, and source water in Da Qaidam Lake, Qinghai, China
Boron isotopic compositions of brine, sediments, and source water in Da Qaidam Lake, Qinghai, China
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DOI：
10.1016/0016-7037(92)90225-8
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发表时间：
1992-04
影响因子：
5
通讯作者：
Ying-kai Xiao;Dapeng Sun;Yun-Hui Wang;H. Qi;Lin Jin
中科院分区：
文献类型：
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作者：
Ying-kai Xiao;Dapeng Sun;Yun-Hui Wang;H. Qi;Lin Jin
用四硼酸铯热电离质谱技术测定了青海大柴达木湖水中硼的同位素组成。卤水富集于11B，平均δ11B为+5.49±2.34%，与湖泊沉积物和湖产硼矿物相比。卤水与湖泊沉积物的表观同位素分馏系数为0.988±0.001，硼矿物的表观同位素分馏系数为0.986±0.001。水源水δ11B的值从−11.72到+16.69%不等，具体取决于它们的来源。
The isotopic compositions of boron in Da Qaidam Lake, Quinghai, have been determined by using the technique of thermal ionization mass spectrometry of cesium tetraborate. The brines are enriched in11B, with an average δ11B of +5.49 ± 2.34%., compared with those of lake sediments and boron minerals produced by the lake. The apparent isotopic fractionation factors between brine and lake sediments as well as boron minerals are 0.988 ± 0.001 and 0.986 ± 0.001, respectively. Source water δ11B values range from −11.72 to + 16.69%., depending on their origin.