首页|习水县岩溶水系统ρ(Sr2+)、ρ(Sr)/ρ(Ca)、ρ(Sr)/ρ(Mg)分布特征及其应用

习水县岩溶水系统ρ(Sr2+)、ρ(Sr)/ρ(Ca)、ρ(Sr)/ρ(Mg)分布特征及其应用

Distribution Characteristics of Sr2+ ,Sr/Mg,Sr/Ca and Its Applications in Karst Water System of Xishui County

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通过对流域内不同类型水取样分析,发现流经不同岩层的地下水具有不同的ρ(Sr2+)、ρ(Sr)/ρ(Ca)、ρ(Sr)/ρ(Mg)值.一般来说,流经砂岩层的基岩裂隙水ρ(Sr2+)低,而ρ(Sr)/ρ(Ca)、ρ(Sr)/ρ(Mg)值较高,当砂岩中的基岩裂隙水受到灰岩岩溶水或煤系地层水补给时,其ρ(Sr2+)、ρ( Sr)/ρ(Ca)、ρ(Sr) /ρ(Mg)值均较高;流经灰岩地层的地下水ρ(Sr)/ρ(Ca)值小于流经白云岩地层的地下水,而灰岩岩溶水ρ(Sr) /ρ(Mg)值大于白云岩岩溶水.地下河出口水的ρ(Sr)/ρ(Ca)、ρ(Sr)/ρ(Mg)值位于各种类型水之间,利用ρ( Sr)/ρ(Ca)、ρ(Sr) /ρ(Mg)值计算出地下河水中基岩裂隙水的比例为0.45,灰岩岩溶水的比例为0.32,白云岩岩溶水的比例为0.23.这为定量研究岩溶水的变化规律和岩溶水资源评价及合理开发利用提供了科学依据.
This paper provides a quantitative method to research karst water from different strata and a scientific basis for karst water resources evaluation and reasonable exploitation. The analysis of different water samples collected from Xishui Basin reveals that the underground water flowing through different rock formations varies in the value of Sr2+ , Sr/Ca, Sr/Mg. Generally, the bedrock fracture water flowing through the sandstone formation contains low Sr2+ with high Sr/Ca and Sr/Mg. Recharged by the water from limestone or coal formation, the fracture water of sandstone is high in content of both Sr2+ and Sr/ Ca, Sr/Mg value, while the water flowing through limestone has lower Sr/Ca value and higher Sr/Mg value than that (flowing) through dolomite formation. The Sr/Ca and Sr/Mg value in outlet water of underground river ranges between those of other types of water, so the proportion of different types of water can be calculated by the Sr/Ca and Sr/Mg value, and the contribution of allogenic water to underground river can be determined.

Xishui CountySr2+Sr/MgSr/Cakarst water system

黄奇波、康志强、覃小群、俞建国、苏春田

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中国地质科学院岩溶地质研究所,广西 桂林 541004

中国地质大学研究生院,武汉 430074

习水县 ρ(Sr2+) ρ(Sr)/ρ(Mg) ρ(Sr)/ρ(Ca) 岩溶水系统

中国地质调查项目岩溶地质研究所所控项目

水[2010]矿评03-07-032010007

2011

地质科技通报
中国地质大学(武汉)

地质科技通报

CSTPCDCSCD北大核心
影响因子:1.018
ISSN:2096-8523
年,卷(期):2011.30(4)
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