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Hydrochemistry and isotope composition of springs in the Tecopa basin, southeastern California, USA
Larsen, D; Swihart, GH; Xiao, YK
2001-09-01
发表期刊CHEMICAL GEOLOGY
卷号179期号:1-4页码:17-35
文章类型Article
摘要Springs and seeps in the Tecopa basin were sampled and analyzed for their major ion chemistry and oxygen, hydrogen, and boron isotope compositions in order to assess the possible origins of the waters. The Tecopa basin is a groundwater discharge area along the Amargosa River drainage basin south of the Nevada Test Site and proposed high-level nuclear waste repository at Yucca Mountain, NV. The spring waters are categorized into three end-member hydrochemical facies: (1) pH-neutral, Na + Ca + Mg + SO4 + HCO3 water with moderate to high total-dissolved solids;, (2) mildly alkaline, Na + Cl + SO4 + HCO3 water with high total dissolved solids; and (3) alkaline, Na + HCO3 + CO3 water with high total dissolved solids. The temperatures of most of the springs range from 17 degreesC to 32 degreesC; however, waters in the Tecopa Hot Spring area range from 9 degreesC to 47 degreesC. The oxygen and hydrogen isotope compositions (normalized to SMOW) of the waters are as follows. The facies 1 springs have a mean delta O-18 of - 12.77 +/- 0.14%o (1 sigma) and delta D of - 94.9 +/- 0.5%(o) (1 sigma). The facies 2 springs have a mean delta O-18 of - 12.73 +/- 0.19%o (1 sigma) and delta D of - 97.7 +/- 0.9%o (1 sigma). The facies 3 spring has a mean delta O-18 of - 13.09 +/- 0.17%o (1 sigma) and delta D of - 103.5 +/- 0.7%o (1 sigma). The mean boron concentrations and isotope compositions range from 2.4 mg/l and delta (11) B of + 2.5%o for facies I springs to 72.8 mg/l and delta (11) B of - 3.8%o for the facies 3 spring.
关键词Stable Isotopes Boron Isotopes Hydrochemistry Hydrogeology Springs California Tecopa Basin
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]IONIZATION MASS-SPECTROMETRY ; SOUTHERN NEVADA GROUNDWATER ; STABLE ISOTOPES ; DEATH-VALLEY ; BORON ; WATER ; GEOCHEMISTRY ; RADIOCARBON ; HYDROLOGY
收录类别SCI
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000170251100003
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文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6050
专题青海盐湖研究所知识仓储
作者单位1.Univ Memphis, Ground Water Inst, Memphis, TN 38152 USA
2.Univ Memphis, Dept Geol Sci, Memphis, TN 38152 USA
3.Acad Sinica, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China
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Larsen, D,Swihart, GH,Xiao, YK. Hydrochemistry and isotope composition of springs in the Tecopa basin, southeastern California, USA[J]. CHEMICAL GEOLOGY,2001,179(1-4):17-35.
APA Larsen, D,Swihart, GH,&Xiao, YK.(2001).Hydrochemistry and isotope composition of springs in the Tecopa basin, southeastern California, USA.CHEMICAL GEOLOGY,179(1-4),17-35.
MLA Larsen, D,et al."Hydrochemistry and isotope composition of springs in the Tecopa basin, southeastern California, USA".CHEMICAL GEOLOGY 179.1-4(2001):17-35.
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