湖南柿竹园钨多金属矿床成矿机理的实验研究  

EXPERIMENTAL STUDY ON ORE FORMING MECHANISM OF THE SHIZHUYUAN TUNGSTEN POLYMETALLIC DEPOSIT, HUNAN PROVINCE

作　　者：梁祥济[1] 

机构地区：[1]中国地质科学院地质研究所

出　　处：《矿床地质》1996年第3期278-286,共9页Mineral Deposits

摘　　要：作者在深入柿竹园钨多金属矿床野外地质工作的基础上，采用矿区燕山期花岗岩和泥盆系灰岩作为试料，在含ｐＨ＝４．０的０．３ＭＮａＣｌ＋０．７ＭＫＦ水溶液的高压釜中持续了１２０小时的交代作用。实验的结果表明了：在４００～７００℃的温度和２５０×１０５～９００×１０５Ｐａ的压力下，形成的交代岩及其钨、锡、钼、铋矿物基本上与矿区的矽卡岩及其矿石矿物共生组合相吻合。Based on a thorough field study on the Shizhuyuan tungsten polymetallic deposit, the author, using Yanshanian granite and Devonian limestone as starting materials, carried out metasomatic experiments in pressure vessels containing solution of 0 3 M NaCl + 0 7 M KF (pH=4 0), with duration of the experimentation being 120 hours In the experiments under the conditions of 400～700℃ and 250×10 5～ 900×10 5Pa, skarns consisting mainly of grossular andradite, hedenbergite, diopside, wollastonite, vesuvianite and scapolite were formed in company with skarn associated metallic minerals such as scheelite, wolframite, molybdenite, cassiterite, stannite and native bismuth The skarn mineral assemblages as well as associated tungsten, tin, molybdenum and bismuth minerals formed in these experiments are basically consistent with minerals that occur in the ore district Furthermore, the author analysed and probed into skarn mineral assemblages formed in the experiments, chemical reaction in the ore forming process and its physicochemical conditions In this way, the author has brought to light the rock forming and ore forming mechanism of the Shizhuyuan tungsten polymetallic deposit in Hunan Province

关 键 词：多金属矿床 钨矿床 成矿机理 

分 类 号：P618.670.5[天文地球—矿床学]