P.2016.02.010]
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黑河市大新屯土壤地球化学测量应用及找矿效果()

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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

Title:: Application of pedogeochemical survey in the Daxintun areaHeihe City and its prospecting effect

Author(s):: LIU Bao-shan; ZHAO Li-guo; Based on the 1:50000 scale regional geological survey in the Daxintun area, Heihe, this study has defined the element anomaly threshold values using pedogeochemical survey, and delineated geochemical anomalies areas, one of which was discovered with intensive anomaly of Au, Ag, As, Sb and Hg. By analyzing the prospecting potential of Au geochemical anomaly and verifyingby trenching, it is found that the abnormal concentration center coincides withorebody, with the long axis direction of anomaly consistent with the trend of orebody. One 900 m-long gold-bearing orebody and two 100 m-long Au-bearingorebodies have been found in the abnormal area, indicating that pedogeochemical surveyhas remarkable prospecting effect in the Daxintun area. Therefore, pedogeochemical survey method can be used in the Daxing’an and Xiaoxing’an Mountains andis worth further promoting in exploration of shallow covered areas.

Keywords:: Heihe City; Daxintun area; pedogeochemical survey; prospecting effect; Daxing’an and Xiaoxing’an Mountains

摘要:: 在1:5万区域地质调查工作的基础上,通过在黑河市大新屯一带进行土壤地球化学测量,确定该区各元素异常下限值并圈定地球化学异常,发现Au、Ag、As、Sb、Hg等有价值的地球化学异常1处。通过分析Au元素地球化学异常找矿潜力并经施工槽探查证,发现异常浓集中心与矿体吻合较好,异常长轴与矿体走向一致,异常区发现1条长约900m 的金矿体,2条长100余米的锑矿体。这表明土壤地球化学测量在大新屯矿区找矿效果显著,在大小兴安岭浅覆盖区,运用土壤地球化学测量方法找矿值得进一步推广。

Abstract:: Based on the 1:50000 scale regional geological survey in the Daxintun area, Heihe, this study has defined the element anomaly threshold values using pedogeochemical survey, and delineated geochemical anomalies areas, one of which was discovered with intensive anomaly of Au, Ag, As, Sb and Hg. By analyzing the prospecting potential of Au geochemical anomaly and verifyingby trenching, it is found that the abnormal concentration center coincides withorebody, with the long axis direction of anomaly consistent with the trend of orebody. One 900 m-long gold-bearing orebody and two 100 m-long Au-bearingorebodies have been found in the abnormal area, indicating that pedogeochemical surveyhas remarkable prospecting effect in the Daxintun area. Therefore, pedogeochemical survey method can be used in the Daxing’an and Xiaoxing’an Mountains andis worth further promoting in exploration of shallow covered areas.

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备注/Memo:: 基金项目:黑龙江省黑河市大新屯金多金属矿普查(编号:2009230006)。
第一作者简介:刘宝山,1970年生,男,高级工程师,从事矿产地质调查与研究工作。

更新日期/Last Update: 2016-06-17