| 成矿物质来源的定量判别方法的探讨 |
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| 引用本文： | 李长江,徐有浪,蒋叙良.成矿物质来源的定量判别方法的探讨[J].矿床地质,1995,14(4):369-375. |
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| 作者姓名： | 李长江 徐有浪 蒋叙良 |
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| 作者单位： | 浙江省地质矿产研究所 |
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| 摘 要： | 热液矿床的成矿物质往往具有多来源性。因此，定量判别不同来源矿质的量比关系，从而正确地识别矿床的主要成矿物质来源和成因机制，是现代矿床学研究的关键性问题之一。本文给出了三元混合模式的同位素－成矿元素的比值型判别方法，并给出了金银和萤石矿床成矿物原来源的定量判别应用实例。
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| 关 键 词： | 热液矿床 成矿物质来源 定量判别方程 |
A discussion on the quantitative discrimination of ore-forming material sources |
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| Li Changjiang,Xu Youlang and Jiang Xuliang.A discussion on the quantitative discrimination of ore-forming material sources[J].Mineral Deposits,1995,14(4):369-375. |
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| Authors: | Li Changjiang Xu Youlang and Jiang Xuliang |
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| Abstract: | Ore-forming materials of hydrothermal deposits are commonly characterized by multiplesources.Therefore, the quant itative discrminaton of ore materials from different sources and,furthermore,the recognition of the principal ore material source and the genetic mechanism of theore deposit seem to be one of the key problems in the ore deposit study. In this paper,an isotope-metallogenic element ratio type discriminant equation of ternary mixed model is proposed:where E_i(i=1,2,3)represent the contributions of three source areas for ore-forming elementsrespectively, andin which c_1,c_2 and c_3 are respectively ratios of ore-forming elements to element x or y in rocksfrom each source area,whereas x_1,x_2,x_3,x_w and y_1,y_2,y_3,y_m are respectively isotopic ratios be-tween ore minerals and rockfrom each source area. Some examples of applying quantitative discrimination are given in this paper,illustratingthe sources of metallogenic materials for gold-silver and fluorite deposits. |
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| Keywords: | hydrothermal deposit ore-forming material source ternary mixed model quanti-tative discriminant equation |
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