| 西藏羊八井热田的碱金属元素研究 |
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| 引用本文： | 朱立新,朱炳球.西藏羊八井热田的碱金属元素研究[J].物探与化探,1990,14(1):55-62. |
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| 作者姓名： | 朱立新 朱炳球 |
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| 作者单位： | 地矿部物化探研究所
(朱立新)，地矿部物化探研究所(朱炳球) |
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| 摘 要： | 本文研究了西藏羊八井高温地热田及毗邻90km2范围内土壤中碱金属元素的地球化学特征,结果表明,碱金属元素锂、铷和铯可以作为一组新的地球化学指标用于热田勘查,圈定热田范围,其作用与已提出的汞、砷、锑和铋地球化学指标相类似。文章对碱金属元素在地热系统中的分布及地球化学行为、异常形成原因进行了初步的讨论。相关分析表明,这些地球化学指标有密切的相关关系,反映了具有共同成因。利用热水中的钠、钾元素作为地热温标对羊八井热田地下热水的温度进行了估算。
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| 关 键 词： | 碱金属元素 地热 地质 地球化学 羊八井热田 |
A STUDY OF ALKALI METAL ELEMENTS IN THE YANGBAJING GEOTHERMAL FIELD OF TIBET |
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| Institution: | Institute of Exploration Geophysica and Geochemistry, Ministry of Geology and Mineral resources |
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| Abstract: | This paper deals with geochemical characteristics of alkali metal elements in soils of the Yangbajing high-temperature geothermal field and its neighboring area of 90 km2. Studies show that alkali metal elements Li, Kb and Cs can serve as a set of new geochemical indicators for the thermal field exploration and the delineation of thermal field limits,and their function is similar to that of such geochemical indicators as Hg, As, Sb and Bi. Apreliminary discussion is made concerning the distribution and geochemical behavior of alkali metal elements in geothermal system and the cause for the formation of anomalies. Correlation analysis demonstrates that these geochemical indicators have intimate correlationship, suggesting their common origin. Using Na and K. in the thermal water as geothermal temperature indexes, the authors have made an estimation of the temperature of underground hot water in the Yangbajing thermal field. |
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