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河北平原地下水氘过量参数特征 预览 被引量:11

CHARACTERISTIC OF DEUTERIUM EXCESS PARAMETER OF GROUNDWATER IN HEBEI PLAIN
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摘要 氘过量参数是由Dansgaard提出的一个新概念,它被定义为:d=δD -8δ18O.河北平原地下水氘过量参数有三个特征:(1)地下热水的氢和氧同位素组成显示出热交换的态势,d值随地下水年龄增大而减少.(2)在同一地区,d值随着地下水埋深加大而增大.(3)在同一含水层内,沿着地下水的路径,从补给区到承压区, d值随着地下水年龄增大而增大.我们认为, d值虽然是地下水年龄的函数,但最好和3H、3H-3He、14C、36Cl和4He测年结果结合使用. Deuterium excess parameter (d) is a new conception proposed by Dansgaard. The d value is determined by d=δD-8δ~(18)O. The deuterium excess parameter of groundwater in Hebei plain has three characteristics:(1) Hydrogen and oxygen isotopes in the thermal groundwater appear to the tendency or situation of thermal exchange. And the d value decreases with the age of the groundwater. (2) The d value increases with the depth of the groundwater in the same region. (3) The d value increases with the age of the groundwater in same aquifer from recharge area to confined area along the path of water flow. We consider that despite d value is the function of groundwater's age, but it is necessary to use together with the dating methods by ~3H、~3H—~3He.~(14)C、~(36)Cl.
作者 晁念英 王佩仪 刘存富 万军伟 CHAO Nian-ying, WANG Pei-yi, LIU Cun-fu, WAN Jun-wei (China University of Geosciences, School of Environmental Science, Wuhan, Hubei 430074, China)
机构地区 中国地质大学
出处 《中国岩溶》 CAS CSCD 2004年第4期 335-338,共4页 Carsologica Sinica
基金 国家自然科学基金
关键词 河北平原 地下水年龄 Δ^18O 测年 氧同位素 地下热水 补给 原地 特征 函数 Deuterium excess parameter (d value) Groundwater in Hebei plain Oxygen isotope(~(18)O) Hydrogen isotope(D)
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  • 4Schotterer U, Froehlich K, Stichle W et al. Temporal variation of (super18) O and deuterium excess in precipitation, river and spring waters in Alpine region of Switzerland[J]. Vienna: Proceedings Series International Atomic Energey Agency, 1993,53-54. 被引量:1
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