| 黑龙江省金厂金矿石英闪长玢岩固结温压条件及其深部预测 |
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| 引用本文： | 罗志波,张华锋,李胜荣.黑龙江省金厂金矿石英闪长玢岩固结温压条件及其深部预测[J].矿物岩石,2012,32(1):1-7. |
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| 作者姓名： | 罗志波 张华锋 李胜荣 |
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| 作者单位： | 中国地质大学地球科学与资源学院,北京,100083 |
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| 摘 要： | 黑龙江东宁县金厂金矿位于兴蒙造山带松嫩地块之东端,是吉黑岩浆成矿域的重要组成部分。其围岩蚀变和流体包裹体研究均显示具典型斑岩Au-Cu矿体特征,与燕山晚期花岗斑岩、石英闪长玢岩密切相关。通过矿物温压计对矿区中部18号矿体下部出露的石英闪长玢岩固结温压条件进行分析表明,岩体固结温度约735℃～700℃,压力约0.63MPa～1.3MPa,侵位深度大致约2km～4km,与流体包裹体获得的成矿深度(2.1km～3.2km)接近。研究结果显示目前出露的矿体属于斑岩矿床成矿体系的中部,而深部斑岩体仍未大规模出露。因此,该矿区深部仍有很大的找矿潜力。
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| 关 键 词： | 矿物化学成分 矿物温压计 斑岩型金矿床 深部找矿 金厂金矿 |
SOLIDFIED CONDITIONS OF QUARTZ-DIORITE PORPHYRITES IN THE JINCHANG GOLD DEPOSIT, HEILONGJIANG, NORTHEAST CHINA: IMPLICATION FOR GOLD PROSPECTIVE EXPLORATION |
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| LUO Zhi-bo
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ZHANG Hua-feng
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LI Sheng-rong.SOLIDFIED CONDITIONS OF QUARTZ-DIORITE PORPHYRITES IN THE JINCHANG GOLD DEPOSIT, HEILONGJIANG, NORTHEAST CHINA: IMPLICATION FOR GOLD PROSPECTIVE EXPLORATION[J].Journal of Mineralogy and Petrology,2012,32(1):1-7. |
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| Authors: | LUO Zhi-bo ZHANG Hua-feng LI Sheng-rong |
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| Institution: | ( Department of Geosciences and Resources,Chinese University of Geosciences,Beijing 100083,China) |
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| Abstract: | The Jinchang gold deposit is located in the eastern part of the Songnen Block of Xingmeng orogenic belt.It is indicated that,from the country rock alteration patterns and fluid inclusions data,the deposit is a porphyry-style gold deposit.Geological and geochronological data reveal that gold mineralization is most likely to be related to the Yanshanian porphyrytic magmatism.In order to shed light on the prospective exploration of the gold deposit,mineral geothermobarometers are used to study the forming conditions of the quartz diorite porphyrites underneath the No.18 ore body.It is showed that the solidified temperatures of the quartz diorite porphyrites are 700 ℃~735 ℃,pressures are 0.63 MPa～1.3 MPa,with the corresponding depths of 2 km~4 km,similar to the mineralization depth(2.1 km~3.2 km).Based on the characteristics of the porphyry metallogenic system,it is considered that the Jinchang gold mine still have great potential prospection for further exploration. |
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| Keywords: | mineral chemistry geothermobarometer porphyry gold deposit prospective metallogeny exploration Jinchang gold deposit |
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