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吉林红旗岭铜镍矿床成矿规律及找矿远景评价
Metallogenic Law and Prospecting Assessment Cu, Ni Sulphide Deposit in Hongqiling, Jilin Province
【作者】 支学军;
【作者基本信息】 吉林大学 , 地质工程, 2005, 硕士
【摘要】 吉林红旗岭矿区是典型的岩浆铜镍硫化物矿床。辉发河断裂是矿区的主要导矿构造,该断裂北西向的次级构造控制着镁铁-超镁铁质岩体分布,岩体形成时期划分为加里东期、海西期、印支期和燕山期,其中印支期为矿区的主要成矿期。根据岩体围岩差异和岩体类型特征分成三个岩带,典型矿床1 号与7 号分布于Ⅰ岩带。根据矿(岩)体的产状、形成时代、岩石组合、矿物成分、岩石化学及微量元素对含矿岩体进行综合评价,总结红旗岭铜镍矿床成矿规律,建立综合找矿模型。对矿区1 号岩体深部,7 号岩体东南部及Ⅱ岩带5 号岩体进行找矿远景评价,为矿区与外围科学找矿提供理论基础。
【Abstract】 Hongqiling magmatic Cu, Ni sulphide deposit is the major study mine area inPanshi city, Jilin province, and main metallogenic native rocks belong to mafic-ultramaficmagma controlled by structures. We assessed rock bodies, summarized metallogenic law,and built synthetic prospecting model to provide a theoretic basement for scientificprospecting in the mine area and its periphery.Hongqiling Cu, Ni sulphide deposit is located in ca. 45km south of Panshi city, Jilinprovince. It is also situated tectonically in the Tieling contact zone between Jiheigeosyncline and Liaodong syncline in North China plate, which is divided by Huifahefault. Strong structural activities and developed magmatic activities are of bettermetallogenic environment and condition in the special geotectonic settings. Hongqilingmine area is surrounded by granite in Huifahe fault. The strata consist of hulan group inthe mine area, which belongs to a series of metamorphic rocks, i.e. gneiss, amphiboliterocks, mica-schist, and marble.The structures are characterized by fold and fault. According to the direction ofstructural line and correlation, Northwest structure is the major developed structure,which controlled the metallogenesis. And mafic-ultramafic rock bodies are distributedalong the northwest fault in Hongqiling mine area.The forming age of the mafic-ultramafic rock bodies varied from Caledon,Hercynian, Indosinian to Yanshanian. It was found that there existed no industrial oreoccurrence in Caledon and Hercynian rock bodies. No. 1 and No. 7 large-scale Cu, Nisulphide ore bodies formed in Indosinian, which was the major metallogenic stage in themine area. And some small vein type and saccate ore bodies was formed in the marginand inner of No. 3 rock body in Yanshanian.
- 【网络出版投稿人】 吉林大学 【网络出版年期】2005年 06期
- 【分类号】P618.41
- 【被引频次】2
- 【下载频次】605