西藏柯月铅锌多金属矿床08号勘探线原生晕地球化学特征研究
Geochemical Characteristics of Primary Halos in the No. 8 prospecting line of Keyue Pb- Zn Polymetallic Deposit, Tibet
西藏柯月铅锌多金属矿床位于北喜马拉雅成矿带。矿床已进行详查验证,浅部矿体赋存于日当组钙质板岩夹薄层泥晶灰岩之中,严格受北东向断裂控制,深部延伸不明。本文通过该矿床08号勘探线原生晕地球化学特征分析,对深部延伸进行初步探讨。通过分析认为,前缘晕元素Hg,近矿晕元素As、Cd、Cu、In、Sn、Tl及尾晕元素Bi、Au与主成矿元素Pb、Zn、Sb、Ag关系密切;采用改良的格里戈良分带指数法计算分带序列为(Hg-Cd-Zn-Tl)-(In-Au)-(Sb-Pb-As-Cu-Ag)-(Sn-Bi)。综合以上分析,推测矿床深部可能有已工程揭示的矿体延伸。
he Keyue Pb-Zn polymetallic deposit located in the Himalaya ore-forming belt. The general exploration shows that ore bodies mainly distribute in calcareous slate within thin micrite of the Ridang Formation(J1r) and are strictly controlled by N-E fault structures. But deep extension of ore bodies are unknown. Base on the analysis of geochemical characteristics of the primary halos about the No. 8 prospecting line, the problem of deep extension is discussed.. Study shows that the frontal elements are Hg, and the near- ore indicator elements are As, Cd, Cu, In, Sn, Tl, Mn and the rear elements are Bi, Au. Based on the Grigorian`s zoning index method and the barycenter method, the axail zoning downward follows in the sequences of ( Hg-Cd-Zn-Tl) -( In-Au) -( Sb-Pb-As-Cu-Ag) -( Sn-Bi) . In conclusion, the speculative result that the extending part of ore bodies exist at the depth.
陈翠华、王驰源、尹力、李关清、张兴国、宋玉坤、程文斌
矿山地质、矿山测量矿业工程理论与方法论地质学
原生晕地球化学特征分带序列柯月西藏
Geochemical Characteristics of Primary Haloszoning sequenceKeyue depositTibet
陈翠华,王驰源,尹力,李关清,张兴国,宋玉坤,程文斌.西藏柯月铅锌多金属矿床08号勘探线原生晕地球化学特征研究[EB/OL].(2015-06-10)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/201506-150.点此复制
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