| 冈底斯中段南缘成矿远景预测及找矿方向 |
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| 引用本文：.2007.Ore resource prognosis and ore_prospecting targets in southern central Gangdise Range[J].Mineral Deposits,26(3):346~352 |
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| 基金项目:中国地质调查局矿产勘查项目（1212010632700） |
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| 中文摘要:冈底斯中段南缘矿集区位于西藏南部扎囊—桑日之间，面积约1500 km 2。该区已 发现大小铜金矿床(点)近20处，累计铜金属资源量达200多万吨。文章从金属成矿省“景” 、“场”、“相”、“床”4个等级体制出发，阐述了该矿集区在印_亚陆陆碰撞“陆内汇聚 _地壳分层加厚_重力均衡调整”的高原隆升过程中的成矿作用。指出区内存在着与碰撞挤压 、 流体迁移汇聚有关的层控铜矿床，后碰撞伸展环境中的矽卡岩铜矿床和斑岩型铜矿床3种矿 床 类型。利用成矿的背景构造、“成矿构造聚敛场”的控矿构造和“行、列、汇”的成矿构造 ，即按“构造的构造”（tectonic_structure）或称构造成因（tectonic genesis）观点分 析了成矿远景，并指明了找矿方向。 |
| 中文关键词:地质学 找矿方向 成矿远景预测 矿集区 冈底斯中段南缘 |
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| Ore resource prognosis and ore_prospecting targets in southern central Gangdise Range |
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| Abstract:The southern central Gangdise ore concentration area lies between Zhanang and Sa ngri Counties, with explored copper and gold resources of over two million tons. Based on integration of metallogenic geological tectonic setting，metallotecton ic structure convergence，metallogenic phases and ore deposits that comprise the metallogenic hierarchy system of a metallogenic province, this paper deals with the metallogenic regularity in the concentration area. The uplifting process of the plateau can be divided into three stages, i.e., the subduction_collision u plift stage，the convergence_compression uplift stage and the isostatic adjustin g uplift stage. The authors point out that the concentration area produced three kinds of ore deposits, namely, stratigraphic copper deposits under the conditio n of continental collision and subduction, porphyry Cu_Au deposits and skarn cop per deposits under the condition of post_collisional extension during the India_ Asian continent_continent collision. In the light of the ore_controlling tectoni cs, the metallogenic tectonic setting，metallotectonic structural convergence an d the ore_forming structure of “row_line_cluster"，this paper analyzes the ore resource prospects and indicates the ore_prospecting targets. |
| keywords:geology, ore_prospecting target, ore resource prognosis, ore concentration area, southern central Gangdise |
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