地质科技情报2009，Vol.28Issue(6)：84-88,5.
渭河盆地地热水水溶氦气成因与来源研究
Origin and Source of Soluble Helium Gas in Geothermal Water, Weihe Basin
摘要
Abstract
Helium gas is a kind of strategic rare resources. Helium gas abundance for industrial development in natural gas is 0.1%. The geothermal water of Weihe Basin contains abundant soluble helium gas whose relative content is more than 0.1% with the highest of 3.395%. Isotope analysis of the helium gas from this geothermal water shows that ~3He/~4 He values are between (3.61±0.29)×10~(-8)-(7.80±0.23) × 10~(-7). Its helium R/R_a, value of the helium gas is less than 1.0. ~4He/~(20)Ne ratio indicates that helium gas from the geothermal water in the basin is mainly the kind of crust-derived helium mixed with trace of man-tle source. Regional geological data analysis shows that granite abundant in radioactive uranium, exposed in Qinling Orogenic Belt and distributed in large areas under Cenozoic sedimentary in South margin of Weihe Basin is the main source rock of soluble helium of the geothermal water.关键词
渭河盆地/氦气/成因/来源Key words
Weihe Basin/helium gas/origin of helium gas/source of helium gas分类
地质学引用本文复制引用
刘建朝,李荣西,魏刚峰,赵法锁..渭河盆地地热水水溶氦气成因与来源研究[J].地质科技情报,2009,28(6):84-88,5.基金项目
国家"973"项目"多种能源矿产共存成藏(矿)机理与富集分布规律"(2003CB2146000) （矿）
