| 内蒙古东珺铅锌银 矿床的发现——地物化综合找矿勘查方法的运用 |
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| 引用本文：朱广仁,张德全,佘宏全,丰成友,李大新,关继东,董英君,苏兰柱,张 斌,谭 刚,郭万军.2009.Discovery of Dongjun lead-zinc-silver deposit in Inner Mongolia: An integrated application of geological, geochemical and geophysical prospecting methods [J].Mineral Deposits,28(6):830~837 |
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| 基金项目:“十一五”国家科技支撑计划项目（编号：2006BAB01A10）、内蒙古地质勘查重大科 研项 目（内地研2004_07）和中国科学院地质与地球物理研究所矿产资源研究重点实验室资助 |
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| 中文摘要:文章介绍了运用以地质为基础、地物化相结合的综合找矿勘查方法，发现内蒙古东珺铅锌银矿床的过程。通过地质、地球化学和地球物理方法进行找矿勘查，总结出适用于草原和森林景观区浅覆盖-隐伏矿床（体）的勘查流程为：路线地质→大比例尺地质测量和地球化学测量→大比例尺地球物理测量→工程验证；提出基本吻合的1∶1万物化探异常可以定位预测隐伏铅锌银矿（化）体，甚低频电磁法和激发极化法对受断裂构造控制的浅覆盖和隐伏脉状铅锌银矿的定位预测是行之有效的地球物理勘查技术方法。根据大比例尺地、物、化示矿信息特征，给出了产于中生代火山岩中的热液脉状铅锌银矿的找矿标志。 |
| 中文关键词:地质学 矿床发现 地物化勘查 铅锌银矿 东珺 内蒙古 |
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| Discovery of Dongjun lead-zinc-silver deposit in Inner Mongolia: An integrated application of geological, geochemical and geophysical prospecting methods |
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| Abstract:Based on an integrated application of geological, geophysical and geochemical prospecting methods, the authors found the Dongjun lead-zinc-silver deposit in Inner Mongolia. Through the integrated exploration, the authors have summarized the prospecting process that applies to shallowly covered or concealed deposits located in grassland and forest landscape areas, i.e., geological route survey→1∶2 000～1∶5 000 geological survey and 1∶50 000～1∶10 000 geochemical prospecting→1∶5 000～1∶10 000 geophysical prospecting→engineering inspection such as trenching and drilling. The superposed large-size (1∶5 000～1∶10 000) geophysical and geochemical anomalies can be applied to forecasting the concealed lead-zinc-silver ore bodies. VLF-EM and IP are effective geophysical prospecting methods for shallowly covered or concealed lead-zinc-silver ore veins controlled by faults. According to abundant geological, geochemical and geophysical information, the prospecting indicators are as follows: ① zonal distribution of mineral outcrops or boulders in Mesozoic volcanic rocks; ② 1∶200 000～1∶10 000 geochemical anomalies; ③ zonal Fanomalies from VLF-EM; ④ zonal ηs anomalies overlapped by geochemical anomalies, ηs=3%～6%, ρs=500～2 500 Ωm. |
| keywords:geology, discovery of the deposit, geological-geophysical-geochemical prospecting, lead-zinc-silver deposit, Dongjun, Inner Mongolia |
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