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J4 ›› 2009, Vol. 17 ›› Issue (3): 48-52.

• 矿产勘查 • 上一篇    下一篇

黑龙江老柞山金矿东矿带东部段地质特征及矿床成因探讨

徐海文,杨廷珍,邓翔云   

  1. 黑龙江省有色金属地质勘查七○一队,黑龙江  桦南   154400
  • 收稿日期:2008-12-15 修回日期:2009-02-20 出版日期:2009-06-30 发布日期:2011-09-29
  • 作者简介:徐海文(1972-) ,男,助理工程师,主要从事金矿矿产勘查工作

Discussion on Geological Features and Genesis of the Eastern Section of East Laozuoshan Gold Ore Belt in Heilongjiang

XU Haiwen, YANG Tingzhen,DENG Xiangyun   

  1. General Team 701 of Heilong jiang Province Geo-exploration for Nonferrous Metals, Huanan   154400, Heilongjiang,China
  • Received:2008-12-15 Revised:2009-02-20 Online:2009-06-30 Published:2011-09-29

摘要:

东矿带东部段是老柞山金矿区内最大的金矿床。矿体受NW向断裂破碎带控制,压性及压扭性脆—韧性脆性断裂控制金矿体。矿体赋存在构造角砾岩和矽卡岩内,呈平行脉状、似层状、透镜状陡倾斜平行排列,延深大于延长。矿石类型以浸染状为主,金与毒砂、磁黄铁矿密切共生。成矿深度超过11 km,属典型中深成造山型金矿,除去成矿后期剥蚀等因素,深部应有很大的找矿潜力。目前激电测深深度在300 m以内,钻探深度达500 m,主矿体呈尖灭再现,控矿断裂带、矽卡岩带仍有下延的趋势,深部可能出现第二成矿空间。

关键词: 老柞山金矿, 脆&mdash, 韧性断裂, 地质特征, 矿床成因, 黑龙江

Abstract:

The eastern section of the east ore belt is the largest gold deposit in Laozuoshan gold deposit region. The ore body is controlled by the NW-trending fractured faults belt. The gold ore body is controlled by the compression and compression-torsion shear brittle and brittle-ductile fault. The ore body exists in tectonic breccia and skarn. It arranges as steep tilt parallel vein, layer and lens shaped. The extension is greater than the extension. The types of orebodies are mainly disseminated. Gold ore bodies exist closely together with arsenopyrite and pyrrhotite. The depth of the ore body is more than 11 km. It is a typical middle or deep orogenic gold deposit. There should be a lot of deep exploration potential without considering the late-forming factors such as erosion. At p resent, the depth of IP sounding is less than 300 m, and drilling depth reaches 500 m. The main ore body doesn’t appear continuously. The ore body controlling faults and skarn zone still tend to descend. The lower part may be the second orebody forming space.

Key words: Laozuoshan gold deposit, Brittle-ductile fault, Geological Features, Genesis, Heilongjiang

中图分类号: 

  • P618.51


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