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中国科学院盐湖研究所
收稿日期:1988-09-10,
纸质出版日期:1990-08
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黄麒. 大陆蒸发盐的36Cl断代法[J]. 核技术, 1990,13(8):488-493.
Qi Huang. Chlorine-36 dating of continental evaporites[J]. Nuclear techniques, 1990, 13(8): 488-493.
本文讨论了
36
Cl的成因,
36
Cl断代法的原理及其测定技术。根据已测定的Searles湖KM-3和尕斯库勒湖ZK2605钻孔中石盐的
36
Cl/Cl比值,发现已有的
14
C、
230
Th和古地磁年龄数据与
36
Cl断代数据有较好的相关性,表明对于某一特定的地质体,在近百万年以来其
36
Cl/Cl比值近于常量的假设是正确的;蒸发盐的
36
Cl断代法是可信的。
The chlorine-36 production
principle and experimental method of
36
Cl dating are briefly described. Measurements have been made of the ratios of chlorine-36 to chlorine in halite samples from Searles Lake and Gasikule Lake sediments. The ages calculated from the
36
Cl/Cl ratios are generally concordant with those obtained by using
14
C
230
Th and magnetostratigraphic techniques
which confirms the constancy of the chlorine input ratio over the last million years and implys that
36
Cl can provide accurate dates on continental saline sediments.
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