| 辽宁共同──疙瘩沟地区金－多金属矿床成矿流体性质研究 |
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| 引用本文： | 李文良,徐燕夫,雷时斌. 辽宁共同──疙瘩沟地区金－多金属矿床成矿流体性质研究[J]. 黄金地质, 1996, 0(2) |
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| 作者姓名： | 李文良 徐燕夫 雷时斌 |
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| 作者单位： | 黄金地质研究所 |
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| 摘 要： | 共同—疙瘩沟地区金－多金属矿床（点）多产于燕山早期花岗岩中，矿体石英中流体包裹体较发育，以气液包裹体为主。通过流体包裹体的研究认为：成矿流体属于Ｎａ＋－Ｃａ２＋－Ｃｌ－［ＳＯ４］２－型，中—低盐度（５．７％～８．５％），成矿温度为中（偏低）温（２２５～２７５℃），压力为７５．１～１１５．８ＭＰａ，ｐＨ为５．２３～６．０５，Ｅｈ为－０．５７～－０．６２Ｖ，推断Ａｕ最可能的搬运形式为［ＡｕＣｌ２］－。可见该地区金－多金属矿床（点）为中（偏低）温岩浆期后热液矿床。
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| 关 键 词： | 金－多金属矿床 成矿物理化学条件 流体包裹体 辽宁 |
STUDY ON CHARACTERISTICS OF OREFORMING FLUID IN GOLDPOLYMETALLIC DEPOSIT, GONGTONGGADAGOU AREA, LIAONING |
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| LiWenliang XuYanfu LeiShibin. STUDY ON CHARACTERISTICS OF OREFORMING FLUID IN GOLDPOLYMETALLIC DEPOSIT, GONGTONGGADAGOU AREA, LIAONING[J]. Gold Geology, 1996, 0(2) |
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| Authors: | LiWenliang XuYanfu LeiShibin |
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| Abstract: | Goldpolymetallic deposits in GongtongGadagou area mostly occur in early Yanshanian granite. Fluid inclusions in quartz develop well, are mainly gasliquid inclusions. From the study of fluid inclusions, it is concluded:oreforming fluid belongs to Na+Ca2+Cl- 2-type with lowtomoderate salinity (57%-85%),the metallogenic temperature is 225-275, the pressure 751-1158 MPa, pH 523-605, Eh-057-062 V, and the possible transported form of gold is deduced to be -. Thereform, goldpolymetallic deposits in this area belong to moderate(or low)temperature postmagmatic hydrothermal ones. |
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| Keywords: | gold polymetallic deposit physicalchemical conditions of ore formation fluid inclusion Liaoning |
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