| 付怀林,马东升,汪传胜,张少云.云南省小水井铜金多金属矿床土壤地球化学特征及找矿意义[J].地质找矿论丛,2013,28(1):134-141 |
| 云南省小水井铜金多金属矿床土壤地球化学特征及找矿意义 |
| Xiaoshuijing poly-metallic Cu-Au deposit in Yunnan province and its soil geochemistry: implications of prospecting criteria |
| 投稿时间：2012-05-07 修订日期：2012-05-14 |
| DOI：10.6053/j.issn.1001-1412.2013.01.020 |
| 中文关键词: 小水井铜金多金属矿床 土壤地球化学 云南省 |
| 英文关键词:Xiaoshuijing poly-metallic Cu-Au deposits soil geochemistry Yunnan province |
| 基金项目:"国土资源部百名优秀青年科技人才计划"资助项目研究成果。 |
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| 中文摘要: |
| 云南省小水井铜金多金属矿床产于东川铜多金属矿集区。矿区土壤地球化学特征表明,在小水井铜金多金属矿床所处的因民组和黑山组中,w(Cu)平均值分别为133×10-6和168×10-6,变异系数分别为0.63和0.59;w(Au)平均值分别为8.7×10-9和4.0×10-9,变异系数分别为0.71和0.61;Cu的富集系数分别为2.20和3.68,Au的富集系数分别为1.31和1.01;Cu和Au的矿化叠加强度分别5.9和8.7,Cu和Au元素的峰值分别为2 017×10-6和570×10-9。在元素异常等值线图上,Cu,Au呈多个富集中心,且二者的富集中心基本吻合;地球化学特征与矿床实际情况也非常吻合。研究表明,区内构造不仅控制地层和岩体的分布,同时控制铜金多金属矿床的展布,岩浆活动和区域脆-韧性剪切作用直接为成矿元素的活化和运移成矿提供了便利。 |
| 英文摘要: |
| Xiaoshuijing poly-metallic Cu-Au deposit in of Yunnan province is located in the Dongchuan ore deposit-clustered district. Soil geochemical characteristics of Yinming group and Heishang group in which Xiaoshuijing poly-metallic Cu-Au deposit occurs show that the Cu average values are 133×10-6 and 168×10-6, the coefficients of variation are 0.63 and 0.59, and Au average value 8.7×10-9 and 4.0×10-9, the coefficients of variation are 0.71 and 0.61, the enrichment coefficient of Cu 2.20 and 3.68, respectively, enrichment coefficient of Au 1.31 and 1.01, respectively. Cu and Au mineralization overprinting intensity, 5.9 and 8.7, and Cu and Au element peak-value 2 017×10-6 and 570×10-9. Element anomaly drawing of Cu and Au shows several enrichment centers and enrichment centers of the two elements are coincided. Soil geochemical characteristics are coincided in detail with the situation of the ore deposit. Studies have shown that structure in the region not only controls the distribution of the strata and igneous rock, but also the distribution of poly-metallic Cu-Au deposits and magmatism and regional brittle-ductile shearing activity facilitate mobilization and transportation of the ore-forming elements. |
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