| 黑龙江省浅覆盖区地物化特征与找矿标志——以黑河市340高地金矿化区为例 |
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| 引用本文： | 史冬岩,张坤,张玉鹏,高勇,唐伟,吕明奇.黑龙江省浅覆盖区地物化特征与找矿标志——以黑河市340高地金矿化区为例[J].吉林大学学报(地球科学版),2021,51(4):1042-1053. |
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| 作者姓名： | 史冬岩 张坤 张玉鹏 高勇 唐伟 吕明奇 |
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| 作者单位： | 1. 黑龙江省地矿投资集团有限公司, 哈尔滨 150036;2. 黑龙江省自然资源调查院, 哈尔滨 150036;3. 中国地质大学(北京)地球科学与资源学院, 北京 100083;4. 黑龙江省第五地质勘查院, 哈尔滨 150036 |
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| 基金项目： | 中国地质调查局项目（12120114028101）；黑龙江省地质矿产局财政资金科研项目（2015-15） |
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| 摘 要： | 黑龙江省黑河市340高地金矿点大地构造上位于兴安地块东北缘，多宝山Cu-Au-Mo-W-Fe成矿亚带内，其地貌为浅覆盖区，找矿较为困难。本文采用浅钻技术取样，对研究区进行基岩填图，圈定出以硅化为中心、青磐岩化为外围的蚀变矿化带。对基岩样品进行岩石地球化学分析，通过主成分分析，确定有6个主成分特征值大于1，其中第二主成分与金元素关系密切，是研究区有效的找矿标志。高精度磁测结果显示区内构造以NNW向为主，且其线性低值异常或与蚀变引起的退磁有关。对区内的地物化异常进行工程查证，发现金矿点1处，圈定预测靶区1处。
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| 关 键 词： | 浅覆盖区 浅钻取样 基岩填图 高精度磁测 勘查地球化学 探矿与预测 黑河市340高地 |
| 收稿时间： | 2020-10-16 |
Geophysical and Geochemical Characteristics and Prospecting Criteria of Shallow Overburden Area in Heilongjiang Province:A Case Study of 340 Highland Gold Mineralization in Heihe City |
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| Shi Dongyan,Zhang Kun,Zhang Yupeng,Gao Yong,Tang Wei,Lü Mingqi.Geophysical and Geochemical Characteristics and Prospecting Criteria of Shallow Overburden Area in Heilongjiang Province:A Case Study of 340 Highland Gold Mineralization in Heihe City[J].Journal of Jilin Unviersity:Earth Science Edition,2021,51(4):1042-1053. |
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| Authors: | Shi Dongyan Zhang Kun Zhang Yupeng Gao Yong Tang Wei Lü Mingqi |
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| Institution: | 1. Heilongjiang Mineral Resources Investment Group Co., Ltd, Harbin 150036, China;2. Heilongjiang Institute of Natural Resources Survey, Harbin 150036, China;3. Institute of Geosciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China;4. The Fifth Geological Survey Institute of Heilongjiang Province, Harbin 150036, China |
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| Abstract: | The 340 highland gold deposit in Heihe City, Heilongjiang Province is located in the northeast margin of Xing'an block and Duobaoshan Cu-Au-Mo-W-Fe metallogenic sub zone. Its landform is shallow covering area, which is difficult to find ore deposits. In this paper, shallow drilling technology was used to sampling and mapping the basement in study area, and the alteration mineralization zone with silicification as the center and qingpanshitization as the periphery was delineated. Through principal component analysis, six principal component eigenvalues are determined to be greater than 1. The second principal component is closely related to gold, which is an effective prospecting indicator in study area. The results of high-precision magnetic survey show that the structure in study area is mainly NNW trending, and its linear low value anomaly may be related to the demagnetization caused by alteration. Through engineering verification of geophysical and geochemical anomalies in this area, one gold deposit and one prediction target were found. |
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| Keywords: | shallow overburden area shallow drilling sampling basement mapping high precision magnetic survey exploration geochemistry prospecting and prediction 340 highland in Heihe City |
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