Analysis of Soil Geochemical Characteristics and Metallogenic Potential in Huolongmengou Area of Heilongjiang
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摘要:
黑龙江霍龙门沟地区位于东乌珠穆沁旗-嫩江多金属成矿带的南段，具有较好的找矿前景。本文以1∶10000土壤地球化学测量成果为依据，利用元素变异系数、浓集系数及分形特征等方法对黑龙江霍龙门沟地10种元素地球化学特征进行了统计，运用聚类分析、因子分析法及分形方法对元素的共生组合关系进行了分析，结果表明：区内Au、Ag、Cu、As、Mo等元素具有较高的找矿潜力，Au元素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，共圈定综合异常7处，并与区域典型的永新浅成低温热液型金矿床和多宝山斑岩型铜-钼-（金）矿床的成矿地质背景及地球化学特征进行对比研究，划分出大狼沟Au-Ag成矿远景区和霍龙门沟Cu-Au成矿远景区，为研究区下一步找矿勘查部署提供科学依据。
Abstract:Heilongjiang Huolongmengou area is located in the southern section of the DongwuzhuMuqi-Nenjiang polymetallic mineralization belt, and has a good prospect for exploration prospecting. Based on the results of 1∶10000 soil geochemical measurements, this paper uses the methods of element variation coefficient, thick set coefficient and fractal characteristics to count the geochemical characteristics of 10 elements in Heilongjiang Huolongmengou area. Cluster analysis, factor analysis and fractal method were used to analyze the symbiotic association of elements. The results show that Au, Ag, Cu, As and Mo have high prospecting potential in the study area, and Au may be the main ore-forming minerals in the study area. According to the distribution law of elemental abnormal combination and the geological conditions of mineralization, a total of 7 comprehensive anomalies were circled, and compared with the mineralization geological background and geochemical characteristics of the typical Yongxin shallow into low temperature hydrothermal gold deposit and Duobaoshan spot rock Copper-Molybdenum-(Gold) deposit in the region, and the prospect area of Au-Ag mineralization and the Cu-Au mineralization prospect area of Huolongmengou were divided to provide scientific basis for the next step of prospecting and deployment of the research area.
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Key words:
- Soil geochemistry /
- Comprehensive anomaly /
- Minerogenic prospect /
- Huolongmengou area /
- Heilongjiang
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表 1 霍龙门地区土壤地球化学测量数据统计
Table 1. Statistics of soil geochemical measurements in Huolongmengou area
元素 平均值
X背景值 
最小值
Xmin最大值
Xmax标准离差
S剔除前变
异系数Cv1剔除后变
异系数Cv2区域1∶20万地球
化学元素背景值K富集系数
C异常下限
TAu 1.00 0.8 0.10 100.80 1.60 1.56 0.41 0.48 1.67 5.60 Ag 0.11 0.10 0.01 1.26 0.08 0.68 0.34 0.04 2.23 0.32 As 9.56 8.89 2.38 122.86 3.57 0.37 0.13 7.29 1.22 13.50 Sb 0.57 0.55 0.09 7.93 0.13 0.23 0.12 0.32 1.71 0.82 Bi 0.36 0.36 0.04 2.89 0.07 0.19 0.12 0.11 3.39 0.44 Cu 21.50 19.9 8.99 201.66 9.00 0.42 0.23 17.18 1.16 35.90 Pb 21.40 21.00 4.42 83.77 5.90 0.28 0.24 17.70 1.18 32.70 Zn 69.30 67.6 32.30 244.36 12.30 0.18 0.13 24.20 2.78 91.80 W 2.25 2.21 0.84 36.60 0.46 0.21 0.10 0.615 3.59 2.83 Mo 1.15 1.10 0.26 24.05 0.51 0.44 0.26 0.78 1.41 1.68 注：Au元素含量为×10-9，其他元素为×10-6；数据来源于黑龙江省地质调查研究总院 
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表 2 霍龙门沟地区不同地质子区土壤元素参数特征
Table 2. Characteristics of soil element parameters in different geological regions of Huolongmengou areas
地质子区 参数 Ag As Au Bi Cu Mo Pb Sb W Zn 多宝山组 X 92.7 9.5 1.2 0.34 29.6 1.12 22.7 0.6 1.96 83.4 S 25.3 1.7 0.5 0.06 7.5 0.28 2.3 0.1 0.28 14.5 CV 0.3 0.2 0.5 0.2 0.3 0.2 0.1 0.2 0.1 0.2 裸河组、泥鳅河组、腰桑南组 X 92.6 9.8 1.2 0.34 27.2 1.00 23.8 0.6 1.96 82.3 S 27.7 2.3 0.5 0.06 6.5 0.25 3.9 0.2 0.31 13.8 CV 0.3 0.2 0.5 0.2 0.2 0.3 0.2 0.3 0.2 0.2 龙江组、光华组、九峰山组 X 78.9 9.7 0.9 0.32 20.6 1.09 24.9 0.6 1.85 74.8 S 17.8 2.6 0.4 0.06 5.3 0.32 3.6 0.1 0.26 16.0 CV 0.2 0.3 0.4 0.2 0.3 0.3 0.1 0.2 0.1 0.2 甘河组、西山玄武岩、大熊山玄武岩 X 73.6 11.5 1.1 0.34 22.8 0.93 27.2 0.6 2.01 66.7 S 12.3 2.7 0.4 0.05 3.7 0.22 3.5 0.1 0.32 11.5 CV 0.2 0.2 0.4 0.1 0.2 0.2 0.1 0.2 0.2 0.2 早世炭世花岗质糜棱岩-奥陶纪侵入岩 X 91.9 8.9 1.0 0.35 20.4 1.11 25.0 0.5 1.93 75.9 S 29.1 2.0 0.5 0.08 5.8 0.36 3.3 0.1 0.43 16.2 CV 0.3 0.2 0.5 0.2 0.3 0.3 0.1 0.2 0.2 0.2 早世炭世正长花岗岩-中石炭世花岗岩 X 88.3 9.3 0.9 0.33 17.9 1.13 24.5 0.5 1.91 70.9 S 28.3 2.6 0.4 0.08 5.3 0.37 4.5 0.1 0.45 17.7 CV 0.3 0.3 0.5 0.2 0.3 0.3 0.2 0.3 0.2 0.3 早白垩世、中侏罗世侵入岩 X 79.7 9.0 0.9 0.36 18.0 1.03 26.1 0.5 1.91 66.9 S 19.6 2.4 0.3 0.09 5.1 0.30 3.7 0.1 0.40 15.5 CV 0.2 0.3 0.4 0.3 0.3 0.3 0.1 0.2 0.2 0.2 全区 X 95.2 10.7 1.73 0.37 23.3 1.1 26.3 0.62 2.06 75.2 S 82.6 5.35 17.6 0.36 8.57 1.5 5.93 0.30 1.11 18.8 CV 0.85 0.50 10.2 0.97 0.37 1.36 0.23 0.49 0.54 0.25 注：X为均值，S为标准离差，Cv为变异系数，Au元素含量为×10-9，其他元素为×10-6；数据来源于黑龙江省地质调查研究总院（据曲晖等[36]，修改）
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表 3 正交旋转因子载荷矩阵
Table 3. Orthogonal rotating factor score matrix
元素 F1 F2 F3 F4 F5 F6 Au 0.028 -0.027 0.08 0.007 0.011 0.994 Ag 0.027 0.326 0.804 0.122 -0.071 0.059 Pb 0.051 0.799 -0.062 0.108 -0.060 0.006 Mo -0.021 0.102 -0.007 0.934 0.039 -0.019 W 0.001 0.112 -0.018 0.092 0.937 0.002 Cu 0.124 -0.444 0.704 -0.057 0.096 0.054 Zn 0.066 0.727 0.117 -0.023 0.225 -0.035 As 0.860 -0.038 0.058 0.106 0.001 -0.020 Sb 0.851 0.146 0.06 -0.049 0.034 0.053 Bi 0.303 -0.037 0.354 0.509 0.374 0.091 λ 1.580 1.518 1.298 1.185 1.090 1.007 △ 15.804 30.985 43.970 55.820 66.715 76.788 注：λ-特征值；△-旋转后累计方差贡献/%
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表 4 元素异常下限、浓度分带及单元素异常数统计
Table 4. 10 elements anomaly threshold, concentration zoning and single element anomaly number
元素 异常下限使用值 浓度分带 单元素异常数 外带 中带 内带 Au 5.60 ≥5.6～11.2 ≥11.2～22.4 ≥44.8 24 Ag 0.32 ≥0.32～0.64 ≥0.64～1.28 ≥1.28 38 As 13.50 ≥13.5～27 ≥27～54 ≥54 17 Sb 0.82 ≥0.82～1.64 ≥1.64～3.28 ≥3.28 30 Bi 0.44 ≥0.44～0.88 ≥0.88～1.76 ≥1.76 49 Cu 35.90 ≥35.9～71.8 ≥71.8～143.6 ≥143.6 24 Pb 32.70 ≥32.7～65.4 ≥65.4～130.8 ≥130.8 25 Zn 91.80 ≥91.8～183.6 ≥183.6～367.2 ≥367.2 22 W 2.83 ≥2.83～5.66 ≥5.66～11.32 ≥11.32 14 Mo 1.68 ≥1.68～3.36 ≥3.36～6.72 ≥6.72 31 注：Au元素含量为×10-9，其他元素为×10-6。
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