山东胶莱盆地东北缘前垂柳矿区金矿资源潜力分析  

Potential Analysis of Gold Resources in Qianchuiliu Mining Area,Northeast Margin of Jiaolai Basin,Shandong Province

作　　者：段留安 魏有峰[2] 陈雄军 韩小梦 郭云成 DUAN Liuan;WEI Youfeng;CHEN Xiongjun;HAN Xiaomeng;GUO Yuncheng(Yantai Geological Survey Center of Coastal Zone,China Geological Survey,Yantai 264004,Shandong,China;School of Mathematics and Physics,China University of Geosciences,Wuhan 430074,Hubei,China)

机构地区：[1]中国地质调查局烟台海岸带地质调查中心,山东烟台264004 [2]中国地质大学(武汉)数学与物理学院,湖北武汉430074

出　　处：《黄金科学技术》2020年第5期701-711,共11页Gold Science and Technology

基　　金：中国地质调查局项目金多金属资源勘查工程“胶西北地区金矿资源勘查”(编号:DD20208006)资助。

摘　　要：前垂柳矿区位于山东胶莱盆地东北缘,其南西侧为辽上金矿,南东侧为西涝口和西井口金矿床,区域成矿地质条件较好。通过对以往的地质、物探和化探等资料进行系统梳理,结合周边典型金矿床特征,提出了2种找矿思路:在矿区南西部寻找受控于NE走向断裂破碎带中的“辽上式”金矿;在矿区南东侧探讨受控于EW向大型断裂破碎带并产出于该破碎带中的金矿的可能性。分析认为该区金矿体主要赋存在断裂破碎带产状由陡变缓处,浅部矿体分散且规模小,与深部厚大矿体有较大的无矿间隔。通过对矿区物化探等地质条件进行分析,对比区域性成矿规律,以及对矿区2种找矿思路成矿可能性进行研判,认为该区有较大的找矿潜力。The Qianchuiliu mining area of Muping in Yantai City is located in the northeast margin of Jiaolai Basin,Shandong Province.It shows good location and metallogenic condition with Liaoshang gold deposit(super large)on the west and Xilaokou gold deposit(large)and Xijingkou gold deposit(medium)on the east.However,there has been no breakthrough in ore prospecting in this area through geological work for many years,and the prospecting has fallen into confusion.In this paper,base on the introduction of the geological background of the Qianchuiliu mining area,we sorted out and summarized the geological,geophysical and geochemical data obtained in this area.Then based on the characteristics of the surrounding typical gold deposits and the main orebodies in each deposit,we summarized the gold metallogenic regularity and the metallogenic characteristics in this area.According to above studies,the reasons why the prospecting effect is not obvious in this area in the past are found and discussed.It is considered that there are some problems,including the selection of geophysical methods,excessive engineering spacing,too much attention to the industrial grade of surface samples,and lack of systematic understanding of mineralization.Furthermore,two possible prospecting ideas were proposed:Firstly,it is considered that the four gold mining areas,e.g.,Liaoshang,Qianchuiliu,Xilaokou and Xijingkou are controlled by the same NE-trending large fault zone from west to east,the inclination angle gradually changed from steep to gradual;Secondly,the above four mining areas are controlled by a large fault zone in the east-west direction,the inclination angle gradually changed from steep to gentle from north to south.Gold orebodies exists in the large fracture zone,the shallow orebody is characterized by steep dip,scattered and small scale.Whereas,the deep orebody mainly exists in the fault fracture zone from steep to slow,distinguished by large scale and stability.Notably,there is a large ore-free interval between shallow and deep ore bod

关 键 词：成矿规律 资源潜力 找矿思路 前垂柳矿区 胶莱盆地北东缘 

分 类 号：P618.51[天文地球—矿床学]