| 粤北白面山成矿预测区岩石地球化学特征与找矿预测 |
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| 引用本文： | 权立诚,韦昌山,罗率,蔡锦辉.粤北白面山成矿预测区岩石地球化学特征与找矿预测[J].地质力学学报,2014,20(4):434-445. |
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| 作者姓名： | 权立诚 韦昌山 罗率 蔡锦辉 |
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| 作者单位： | 1.中国地质科学院地质力学研究所, 北京 100081 |
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| 基金项目： | 国土资源部公益性行业科研专项(201411024-3)；地质力学研究所“重要成矿区带矿田构造研究与找矿预测”项目“粤北大宝山等地区构造岩相-蚀变-矿化调查及深部预测研究” |
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| 摘 要： | 通过对大宝山钼多金属矿床西侧白面山成矿预测区野外地质调查, 确定该区断裂构造十分发育, 主要有北西、北东和近东西向3组, 其中北西向断裂形成最早, 北东向最晚。区内有较多中基性岩脉沿北西、北东向断裂侵入。沿断裂带的地表存在多处岩石蚀变和铅锌锑黄铁矿等矿化点。对预测区内围岩(蚀变灰岩)及岩浆岩(石英闪长玢岩、辉绿岩)岩石样品进行等离子体质谱(ICP-MS)测试分析, 从成矿、微量和稀土元素的地球化学特征及与成矿作用之间关系反映出该地区可能具有良好的成矿环境, 结合对该区各类成矿地质条件及前人的物化探研究成果, 确定在其地下不深处存在有成矿地质体, 为预测区成矿提供充足的物质来源。预测白面山中西部地下500~800 m深处可能存在一个具有相当规模的中-低温矽卡岩型铅锌银多金属矿床。
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| 关 键 词： | 粤北 白面山 铅锌银多金属矿床 地球化学信息 找矿预测 |
| 收稿时间： | 2014/8/7 0:00:00 |
ROCK GEOCHEMICAL CHARACTERISTICS AND ORE-PROSPECTING PROGNOSIS IN THE BAIMIANSHAN METALLOGENIC FORECASTING AREA, NORTHERN GUANGDONG |
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| QUAN Li-cheng,WEI Chang-shan,LUO Shuai and CAI Jin-hui.ROCK GEOCHEMICAL CHARACTERISTICS AND ORE-PROSPECTING PROGNOSIS IN THE BAIMIANSHAN METALLOGENIC FORECASTING AREA, NORTHERN GUANGDONG[J].Journal of Geomechanics,2014,20(4):434-445. |
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| Authors: | QUAN Li-cheng WEI Chang-shan LUO Shuai and CAI Jin-hui |
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| Institution: | 1.Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China2.The Fourth Geological Team of Hubei Province, Xianning 437100, Hubei, China3.Wuhan Institute of Geology and Minerals Resources, Wuhan 430232, China |
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| Abstract: | According to the Baimianshan metallogenic forecasting area geological investigation to the west of Dabaoshan Mo deposit, we know that this area highly developed fault structures, mainly for the NW, NE and nearly NW three groups, among them, the NW fracture formed in the earliest time while NE the last. Along the NW and NE fault structures, we can see lots of suffer basic rock vein intruded. Following our investigation, we also find that along the fault zone of the surface existing multiple rock alteration and antimony lead.zinc pyrite mineralization points. Based on the test analysis in this area of surrounding rock and magmatic rock samples （ ICP.MS ） , and from mineralization and geochemical characteristics of trace and rare earth elements reflecting the region is likely to have good metallogenic environment, combination of various metallogenic geological conditions and the predecessor′s research of geochemical exploration work, we can conclude that there has ore.forming geological body which is not far from underground, and provided sufficient material sources for this region mineralization. Through the metallogenic information in this paper, we predict that between 500 --800 meters underground in the mid.west of Baimianshan may be a considerable scale deposit of low temperature skarn type and zinc silver multi.metal. |
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| Keywords: | north of Guangdong Baimianshan geological characteristics Pb-Zn-Ag polymetallic deposit geochemical information prospecting forecasting |
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