山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2014年
10期
15-20
,共6页
金矿%地质特征%深部预测%唐家沟金矿床%山东乳山
金礦%地質特徵%深部預測%唐傢溝金礦床%山東乳山
금광%지질특정%심부예측%당가구금광상%산동유산
Gold deposit%geological characteristics%deep prediction%Tangjiagou gold deposit%Rushan in Shandong p rovince
唐家沟金矿位于胶东牟平乳山金矿带西南段；历经数次勘查工作，近期获得较大突破，累计金金属资源量规模达到近大型。矿区内出露地层主要为古元古代荆山群变质岩及新生界第四系，构造以古元古代褶皱构造和中生代断裂构造为主，其中含金矿化蚀变带受 NNE 向、NE 向、近 EW 向断裂控制。主要控矿构造呈 NNE 向、近 EW向展布，矿石类型主要为黄铁矿化石英脉、黄铁矿化花岗质碎裂岩和黄铁矿化大理岩，矿化具多期活动特点。研究发现，控矿构造局部引张段与其他构造交会处是储矿的有利部位，矿化蚀变叠加地段预示着深部成矿可能性极大。深部预测 NNE 向金矿化断裂构造与 NE 向硫化物富集带交会部位，残留荆山群地层与侵入岩接触部位、接触带与NE 向硫化物富集带交会部位为成矿的有利地带。
唐傢溝金礦位于膠東牟平乳山金礦帶西南段；歷經數次勘查工作，近期穫得較大突破，纍計金金屬資源量規模達到近大型。礦區內齣露地層主要為古元古代荊山群變質巖及新生界第四繫，構造以古元古代褶皺構造和中生代斷裂構造為主，其中含金礦化蝕變帶受 NNE 嚮、NE 嚮、近 EW 嚮斷裂控製。主要控礦構造呈 NNE 嚮、近 EW嚮展佈，礦石類型主要為黃鐵礦化石英脈、黃鐵礦化花崗質碎裂巖和黃鐵礦化大理巖，礦化具多期活動特點。研究髮現，控礦構造跼部引張段與其他構造交會處是儲礦的有利部位，礦化蝕變疊加地段預示著深部成礦可能性極大。深部預測 NNE 嚮金礦化斷裂構造與 NE 嚮硫化物富集帶交會部位，殘留荊山群地層與侵入巖接觸部位、接觸帶與NE 嚮硫化物富集帶交會部位為成礦的有利地帶。
당가구금광위우효동모평유산금광대서남단；력경수차감사공작，근기획득교대돌파，루계금금속자원량규모체도근대형。광구내출로지층주요위고원고대형산군변질암급신생계제사계，구조이고원고대습추구조화중생대단렬구조위주，기중함금광화식변대수 NNE 향、NE 향、근 EW 향단렬공제。주요공광구조정 NNE 향、근 EW향전포，광석류형주요위황철광화석영맥、황철광화화강질쇄렬암화황철광화대리암，광화구다기활동특점。연구발현，공광구조국부인장단여기타구조교회처시저광적유리부위，광화식변첩가지단예시착심부성광가능성겁대。심부예측 NNE 향금광화단렬구조여 NE 향류화물부집대교회부위，잔류형산군지층여침입암접촉부위、접촉대여NE 향류화물부집대교회부위위성광적유리지대。
Tangjiagou gold deposit lies in southwest part of Muping Rushan gold ore belt in Jiaodong are-a.After several times exploration work,larger breakthrough has been gained recently.The accumulated gold resources nearly reach large scale.Main outcropped strata in the mining area are Jingshan group meta-morphic rocks in lower proterozoic era and Cenozoic Quarternary.Structures are mainly composed of Paleo-proterozoic fold structures and Mesozoic fault structures.Gold mineralization altered belts are controlled by faults with the trend of NNE,NE and nearly EW trend.Main ore controlling structures distributed in NNE trend and nearly EW trend.Ore types are mainly pyritized quartz vein,pyritized cataclastic rock and pyritized marble.Mineralization has the characteristics of multi stages.It is found that the ore control-ling structure and other structures as well as bifurcation of the ore controlling structures are favorable ore contained space.Mineralized alteration superposition areas indicate great prospecting potentiality in deep part.It is predicated that intersection areas of gold mineralization structures with the trend of NNE and sulfide enrichment areas with the trend of NE,intersection areas of strata in Jingshan group and intrusive rocks,and the intersection areas of contact zones and sulfide enrichment zones with the trend of NE are metallogenetic favorable zones.
