Noble Gases in Sea Water
Noble Gases in Sea Water
复制标题
海水中的惰性气体
作者：
R. Bieri;M. Koide;E. Goldberg
用质谱法测量了从太平洋一个监测站采集的水深3437米的海水样品中惰性气体的浓度。相对于其他惰性气体的浓度，氦的过量是由于这种气体的原子从沉积物中流入，在沉积物中，它是由铀和钍系列成员的天然放射性衰变产生的。在稳态模型的基础上，计算出氦每年每平方厘米逃逸6.4 × 1013个原子。
Concentrations of noble gases in samples of sea water obtained at depths to 3437 meters from a Pacific Ocean station were measured by mass spectrometry. An excess of helium, in relation to concentrations of the other noble gases, is attributed to influx of atoms of this gas from the sediments where it is produced by the natural radioactive decay of members of the uranium and thorium series. On the basis of a steady-state model, the escape of helium from the earth is calculated at 6.4 x 1013 atoms per square centimeter per year.