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| 基金项目：内蒙古自治区地质勘查基金项目“内蒙古四矿权区复电阻率（CR）法勘查”（JL20120104） |
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| 摘要： |
| 以内蒙古鄂伦春某铅锌多金属矿勘查为例，研究不同勘查阶段的有效物化探组合方法。通过1∶1万土壤地球化学扫面圈定多元素组合异常，根据磁测工作证实了火山口的存在，以火山机构边部受NE-NNE向断裂带控制的铅锌矿体为重点研究对象，兼顾火山堆积型铅锌矿体，在激电中梯异常见矿不理想的情况下，开展复电阻率法剖面测量工作，通过二维电性剖面指导深部钻探工作部署，最终取得找矿突破。通过小比例尺物化探异常结合地质背景选区-大比例尺物化探扫面圈定找矿有利部位-二维物探剖面进一步确定目标体的埋深和产状以指导钻探，该套有效勘查方法组合对其他地区的找矿具有借鉴意义。 |
| 关键词：综合物化探 异常特征 激电异常 铅锌矿 找矿效果 内蒙古鄂伦春 |
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| Abstract: |
| Taking the exploration of a lead-zinc polymetallic ore in Oroqen, Inner Mongolia as an example, the integration of geophysical and geochemical methods in different exploration stages are studied. The anomaly of multi-element combination was delineated by 1∶10,000 area soil geochemical survey, and the existence of crater was confirmed by magnetic survey. The lead zinc ore body controlled by NE-NNE trending fault zone at the edge of volcanic edifice was identified as the key research object, and lead zinc ore body of the volcanic accumulation type was taken into account. In the case of unsatisfactory IP intermediate gradient exploration, the complex resistivity method profile measurement was carried out, and the two-dimensional electrical profile was used to guide the deployment of deep drilling work, finally achieving a breakthrough in prospecting. By integrating small-scale geophysical and geochemical exploration anomalies with geological background, large-scale geophysical and geochemical exploration to delineate the favorable parts for prospect ing, and two-dimensional geophysical prospecting profile to further determine the buried depth and occurrence of the target body to guide the drilling, this paper summarized a combination of effective exploration methods for prospecting in other similar areas. |
| Keywords:integrated geophysical and geochemical exploration anomaly feature IP anomaly lead-zinc deposit exploration effect Oroqen, Inner Mongolia |
| 杨志成，王兴会.综合物化探在内蒙古鄂伦春某铅锌多金属矿勘查中的应用及找矿效果[J].地质学刊,2024,48(2):202-209 |
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