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首页   >    黄金地质

河南土木崖银多金属矿床地质特征及成因探讨

  • 李俊锋|王正威|李晨晖|陈洁
  • 作者单位:
  • 河南省有色金属地质矿产局第三地质大队&河南省有色金属矿产探测工程技术研究中心|河南省有色金属地质矿产局第三地质大队|河南省有色金属矿产探测工程技术研究中心|河南省有色金属地质矿产局第三地质大队
  • 基金项目:

  • 中国地质调查局项目(200010200131)
  • 详细信息:

  • 作者简介:
  • 李俊锋(1984—),男,河南登封人,工程师,从事有色金属地质勘查工作;郑州市郑东新区金水东路16号鑫地大厦,河南省有色金属地质矿产局第三地质大队,450016;E-mail:541985932@qq.com
  • 通讯作者:
  • isnull
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Geological characteristics and genesis of Tumuya Silver Polymentallic Deposit,Henan Province

  • English Author:
  • No.3 Geology Team,Henan Bureau of Nonferrous Geology and Mineral Resources&Henan Engineering Research Center for Non-ferrous Metal Mineral Exploration|No.3 Geology Team,Henan Bureau of Nonferrous Geology and Mineral Resources|Henan Engineering Research Center for Non-ferrous Metal Mineral Exploration|No.3 Geology Team,Henan Bureau of Nonferrous Geology and Mineral Resources
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

土木崖银多金属矿床赋矿地层主要为二郎坪群小寨组,其矿体产出严格受压扭性断裂控制,蚀变分带明显,矿区成矿可分为3个阶段。矿石硫同位素分馏基本达到平衡,为二郎坪群地层变质脱水硫和壳源酸性岩浆硫的混合来源。铅源物质成熟度较高,具有上地壳铅源的特点,成矿物质和成矿流体主要源于小寨组。该矿床形成于中生代中温环境下,遭受了后期碰撞造山作用改造,变质作用对成矿具有重要积极意义。土木崖银多金属矿床应属于断裂控制的造山型中温热液银多金属矿床。

关键词:

地质特征;硫同位素;铅同位素;氢-氧同位素;矿床成因;土木崖银多金属矿床

Abstract:

The ore-bearing strata of the Tumuya Silver Polymetallic Deposit are mainly the Xiaozhai Formation of the Erlangping Group.The output of its ore bodies is strictly controlled by compression and torsion fractures,and the alteration zone is obvious.The mineralization of the mining area can be pided into 3 stages.The S isotope fractionation of the ore basically reaches a balance,which is a mixed source of metamorphic dehydrated sulfur and crust-derived acid magmatic sulfur in the Erlangping Group strata.The lead source material has a high degree of maturity and the characteristics of a lead source in the upper crust.The ore-forming materials and ore-forming fluids mainly originate from the Xiaozhai Formation.The deposit was formed under the meso-temperature environment of the Mesozoic Era and transformed by collisional orogeny in the later period.Metamorphism has important and positive significance for mineralization.The Tumuya Silver Polymetallic Deposit should be a fault-controlled orogenic mesothermal hydrothermal silver polymetallic deposit.

Keywords:

geological characteristics;S isotope;Pb isotope;H-O isotope;deposit genesis;Tumuya Silver Polymetallic Deposit