| 秦岭—祁连造山带印支-燕山期构造与大型-超大型矿床的形成关系 |
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| 引用本文：.2003.Relationship Between Indosinian-Yanshanian Tectonic Framework and Large-Superlarge Mineral Deposits in Qinling-Qilian Orogenic Belt [J].Mineral Deposits,22(1):65~71 |
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| 中文摘要:印支-燕山期构造-岩浆热液活动，对秦岭—祁连造山带的区域成矿控制与影响作用十分显著。主要表现在该期北东向构造_岩浆活动不仅控制了金等矿产的形成，而且使先期形成的铜、铅锌等矿产发生了较强烈的改造和富集作用。该期北东向构造带与先期的北西、近东西向构造或含矿层交汇叠加部位，是形成大型_超大型矿床的重要条件。文章对秦岭—祁连造山带印支_燕山期构造_岩浆活动带的发育特征及其对大型_超大型矿床的控制与影响等进行了初步分析与探讨，提出了本区新一轮矿产勘查研究对策与思路。 |
| 中文关键词:地质学 秦岭—祁连造山带 印支-燕山期构造 改造富集 大型-超大型矿床 综述 |
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| Relationship Between Indosinian-Yanshanian Tectonic Framework and Large-Superlarge Mineral Deposits in Qinling-Qilian Orogenic Belt |
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| Abstract:It is obvious that the Indosinian_Yanshanian tectono_magmatic activities controlled and affected the ore_forming process of the Qinling_Qilian orogenic belt. This finds expression in the fact that the Indosinian_Yanshanian NE_trending structures not only controlled the mineralization of gold and other metallic minerals but also caused the considerable reformation and enrichment of the earlier_formed copper, zinc, lead and other minerals. Where the NE_trending structures intersected or are superimposed on the earlier_formed NW_ and nearly EW_trending structures or ore_bearing formations, the large and superlarge mineral deposits are likely to be formed. In this paper, the characteristics of the Indosinian_Yanshanian tectono_magmatic belt which controlled and affected the formation of large_superlarge mineral deposits are analyzed and discussed, and new measures and thinking are put forward for carrying out a new round of mineral exploration in this region. |
| keywords:geology, Qinling_Qilian orogenic belt, Indosinian_Yanshanian tectonic framework, reformation and enrichment,large_superlarge mineral deposits |
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