| 刘建伟,李玥,白超.陕西黑龙口地区 1∶2.5万水系沉积物地球化学异常特征及找矿潜力[J].矿产勘查,2025,16(12):2614-2623 |
| 陕西黑龙口地区 1∶2.5万水系沉积物地球化学异常特征及找矿潜力 |
| Geochemical anomaly characteristics and mineral potential of 1∶25000 water system sediments in Heilongkou area, Shaanxi Province |
| 投稿时间：2024-02-26 |
| DOI：10.20008/j.kckc.202512008 |
| 中文关键词: 水系沉积物地球化学 综合异常 找矿远景区 找矿潜力 黑龙口地区 |
| 英文关键词: geochemistry of water sediment comprehensive anomaly exploring mineral attractions prospect-ing potential Heilongkou area |
| 基金项目:本文受中国地质调查局项目“陕西省蓝田—黑龙口地区矿产地质调查”(12120113048200)资助。 |
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| 中文摘要: |
| 研究区属华北陆块南缘稳定型大陆边缘与活动型大陆边缘的过渡地带，具有较好的稀有金属找矿前景。本文以水系沉积物地球化学测量成果为依据，利用元素变异系数、浓集系数等参数对黑龙口地区 15种元素地球化学特征进行了统计，运用 R型聚类分析对元素的共生组合关系进行了分析。结果表明:区内 W、 Mo、Pb、Zn、Zr、Nb、Ta、Rb、Cu、Au、Ag等元素具有一定的找矿潜力，Nb、Ta、Rb和 Cu、Pb、Zn可能是研究区主要的成矿矿种。根据元素异常组合分布规律及成矿地质条件，划分出 2处主要综合异常(HS4、HS9)，圈定出 2个找矿远景区，分别为扇车沟铜铅锌金银成矿远景区和刘家台稀有金属铌、钽、铷成矿远景区，为下一步地质找矿提供依据。 |
| 英文摘要: |
| The research area belongs to the transitional zone between the stable and active continental marginsof the southern margin of the North China Block, and has good prospects for rare metal exploration. This article isbased on the geochemical measurement results of river sediment, and uses methods such as element variation coeffi-cient and concentration coefficient to statistically analyze the geochemical characteristics of 15 elements in the Hei-longkou area. The R-type clustering analysis method is used to analyze the symbiotic combination relationship of el-ements. The results indicate that elements such as W, Mo, Pb, Zn, Zr, Nb, Ta, Rb, Cu, Au, Ag have certain prospect-ing potential in the study area, and Nb, Ta, Rb, Cu, Pb, Zn may be the main ore-forming minerals in the study area.Based on the distribution pattern of element anomaly combinations and ore-forming geological conditions, two com-prehensive anomalies (HS4, HS9) have been divided, and a total of two prospecting areas have been delineated,namely: Fanchegou copper lead zinc gold silver metallogenic prospective area and Liujiatai rare metal niobium, tan-talum, and rubidium metallogenic prospective area, providing a basis for further geological exploration. |
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