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黑龙江省二道坎银矿床银的赋存状态及矿床成因

  • 刘国卿|彭晓蕾*|李津萍
  • 作者单位:
  • 吉林大学地球科学学院|吉林大学地球科学学院|吉林大学地球科学学院
  • 基金项目:

  • 中国地质调查局项目(3S2170804422)
  • 详细信息:

  • 作者简介:
  • 刘国卿(1994—),男,内蒙古通辽人,硕士研究生,研究方向为矿物学、岩石学、矿床学;长春市建设街2199号,吉林大学地球科学学院,130061;Email:2720403211@qq.com
  • 通讯作者:
  • E-mail:pengxl@jlu.edu.cn,13894853708
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Silver occurrence state and deposit genesis of Erdaokan Silver Deposit,Heilongjiang Province

  • English Author:
  • College of Earth Sciences,Jilin University|College of Earth Sciences,Jilin University|College of Earth Sciences,Jilin University
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

二道坎银矿床是黑龙江省多宝山矿集区内新发现的首个独立银矿床。通过矿相学研究和电子探针测试,确定了该矿床银矿物主要为深红银矿、脆银矿、辉银矿,其他含银矿物有方铅矿、黄铁矿、闪锌矿、锰铅矿、软锰矿。银的赋存状态主要为独立银矿物,其次以亚显微包体、类质同像和离子吸附态形式赋存。独立银矿物嵌布类型有包裹银、粒间银和裂隙银。矿床成因研究表明,热液期为主成矿期,表生期具有次生富集的潜力,热液期的硫化物阶段Ⅰ为主成矿阶段,初步认为该矿床属于浅成低温热液型矿床。

关键词:

独立银矿物;赋存状态;成矿阶段;矿床成因;二道坎银矿床

Abstract:

Erdaokan Silver Deposit is the first independent silver deposit found in Duobaoshan high ore concentration area,Heilongjiang Province.Mineralography study and electronic probe test find that the main silver minerals in the  deposit are pyrargyrite,stephanite and argentite,other silver-bearing minerals include galena,pyrite,sphalerite,coronadite and pyrolusite.The silver occurrence state is mainly independent silver minerals,followed by submicrosco-pic inclusion,isomorphism and ionic adsorption.The occurrence type of independent silver minerals includes inclusion silver,intergranular silver and fissure gold.Deposit genesis research shows that the hydrothermal stage is the main metallogenic stage and supergene stage bears the potential for secondary enrichment;stageⅠis the main metallogenic stage in hydrothermal fluids stage.The deposit is preliminarily considered to be a hypabyssal low temperature hydrothermal deposit.

Keywords:

indenpendent silver mineral;occurrence state;metallogenic stage;deposit genesis;Erdaokan Silver Deposit