黄金科学技术
黃金科學技術
황금과학기술
GOLD SCIENCE AND TECHNOLOGY
2013年
4期
9-14
,共6页
杨登美%刘新会%曹东宏%向红林%王淑娟
楊登美%劉新會%曹東宏%嚮紅林%王淑娟
양등미%류신회%조동굉%향홍림%왕숙연
矿石类型%矿化体%金龙山金矿%陕西省
礦石類型%礦化體%金龍山金礦%陝西省
광석류형%광화체%금룡산금광%합서성
ore type%mineralization body%Jinlongshan gold deposit%Shaanxi Province
通过在南秦岭地区进行野外调查及室内岩石矿物研究，将金龙山金矿的原生矿石类型按金属矿物赋存的构造状态划分为4类：浸染状金矿石、片理化金矿石、细脉状金矿石和构造角砾岩型金矿石。浸染状及片理化金矿石是赋存在受S、N、W挤压作用的近EW向展布的地层中的压扭性形变层间剪切带中，确立了层间剪切带型矿石为主要矿石类型，层间剪切带型矿石为主要矿石类型，构造角砾岩型矿石为次要矿石类型。层间剪切带型矿化体是成矿流体在地层里及地层层间渗透形成的，而断裂构造角砾岩型矿化体是成矿流体沿着断裂构造带扩散形成的。金龙山矿区的矿化体基本由层间剪切带型矿石组成的层间剪切带型矿化体和由构造角砾岩型矿石组成的构造角砾岩型矿化体2种类型的矿化体交会构成。研究金龙山矿区矿石类型及矿化体类型，分析了金龙山金矿的成矿机理，纠正了以往的就矿连矿的错误认识，为今后的矿体连接提供了依据，对金龙山金矿床勘查工作具有指导意义。
通過在南秦嶺地區進行野外調查及室內巖石礦物研究，將金龍山金礦的原生礦石類型按金屬礦物賦存的構造狀態劃分為4類：浸染狀金礦石、片理化金礦石、細脈狀金礦石和構造角礫巖型金礦石。浸染狀及片理化金礦石是賦存在受S、N、W擠壓作用的近EW嚮展佈的地層中的壓扭性形變層間剪切帶中，確立瞭層間剪切帶型礦石為主要礦石類型，層間剪切帶型礦石為主要礦石類型，構造角礫巖型礦石為次要礦石類型。層間剪切帶型礦化體是成礦流體在地層裏及地層層間滲透形成的，而斷裂構造角礫巖型礦化體是成礦流體沿著斷裂構造帶擴散形成的。金龍山礦區的礦化體基本由層間剪切帶型礦石組成的層間剪切帶型礦化體和由構造角礫巖型礦石組成的構造角礫巖型礦化體2種類型的礦化體交會構成。研究金龍山礦區礦石類型及礦化體類型，分析瞭金龍山金礦的成礦機理，糾正瞭以往的就礦連礦的錯誤認識，為今後的礦體連接提供瞭依據，對金龍山金礦床勘查工作具有指導意義。
통과재남진령지구진행야외조사급실내암석광물연구，장금룡산금광적원생광석류형안금속광물부존적구조상태화분위4류：침염상금광석、편이화금광석、세맥상금광석화구조각력암형금광석。침염상급편이화금광석시부존재수S、N、W제압작용적근EW향전포적지층중적압뉴성형변층간전절대중，학립료층간전절대형광석위주요광석류형，층간전절대형광석위주요광석류형，구조각력암형광석위차요광석류형。층간전절대형광화체시성광류체재지층리급지층층간삼투형성적，이단렬구조각력암형광화체시성광류체연착단렬구조대확산형성적。금룡산광구적광화체기본유층간전절대형광석조성적층간전절대형광화체화유구조각력암형광석조성적구조각력암형광화체2충류형적광화체교회구성。연구금룡산광구광석류형급광화체류형，분석료금룡산금광적성광궤리，규정료이왕적취광련광적착오인식，위금후적광체련접제공료의거，대금룡산금광상감사공작구유지도의의。
Through the field investigation and indoor rock mineral research in South Qinling,Jinlongshan primary ore types is divided into four categories by the structure of the metal mineral occurrence state:disseminated gold ore,lamellar gold ore,veinlet gold ore,structural breccia type gold ore.The disseminated gold ore and lamellar gold ore occurrence in the compressive shear deformation interlayer shear zone,which is nearly EW to distribution and being squeezed from S,N and W,and established the interlayer shear zone type ore is the main ore type.Interlayer shear zone type ore is the main ore type,and tectonic breccias’ type ore is secondary.The formation of interlayer shear zone type mineralization body is the result of the ore-forming fluid permeating stratum and the between layers,while the fracture structural breccia type body is formed by the ore-forming fluid spreading along the fault belt.The mineralized bodies of Jinlongshan gold deposit is formed by the interlayer shear zone type mineralization and the tectonic breccia type mineralization.In this paper,we study the ore types and mineralization types,analyze the mineralization mechanism,and correct the mistakes of the past ore body connection.It will provide a basis for future orebody connections,also has guiding significance for gold deposit exploration in Jinlongshan gold deposit.
