| 张善明.内蒙古东七一山钨锡多金属矿成矿特征与控矿因素分析[J].地质与勘探,2014,50(6):1038-1049 |
| 内蒙古东七一山钨锡多金属矿成矿特征与控矿因素分析 |
| Ore-controlling factors and geological features of the W-Sn polymetallic ore deposits in East Qiyi Shan, Inner Mongolia |
| 投稿时间：2014-06-11 修订日期：2014-09-15 |
| DOI： |
| 中文关键词: 钨锡多金属矿 成矿特征 控矿因素 东七一山 北山 |
| 英文关键词: W-Sn polymetallic ore deposit, metallogenic characteristics, ore-controlling factors, East Qiyi Shan Bei Shan |
| 基金项目:内蒙古自治区国土厅项目（编号：NMKD2014-10）资助 |
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| 中文摘要: |
| 内蒙古东七一山钨锡多金属矿是北山地区成矿地质特征复杂且具代表性矿床之一。在综合分析区域大地构造与成矿、地层序列、复式杂岩体的前提下，并基于同北山、东天山、南岭类似矿床的对比分析，本文对该矿床的地质特征和控矿因素进行了研究。结果表明：该矿床是产在复式杂岩体内的以钨、锡、铷、萤石为主，伴生钼、铍、铁和铜的多金属-非金属矿床，矿脉群具备一定的内部结构型式。矿化具一定分带性，并与特定的蚀变对应。富W、Sn、Mo的区域地球化学场决定东七一山地区具备成矿的物质条件，成矿作用过程中，前寒武纪基底地层提供了矿源，泥盆纪碰撞造山使地层重熔形成含矿岩浆，岩浆热液在不同序次构造的控制下运移并析出矿质，并最终在有利的物理化学空间富集成矿。有关该矿床地质特征和控矿因素的分析有利于推动对整个北山地区钨成矿作用的认识和相关找矿工作的深入。 |
| 英文摘要: |
| The East Qiyi Shan W-Sn polymetallic ore deposit is one of the most complex and representative ore deposit in the Bei Shan area, Inner Mongolia. On the basis of analysis on tectonic setting, mineralization，strata，magmatic rocks and comparison of the similar deposits in the Bei Shan，eastern Tian Shan and Nan Ling areas，this paper studies the geological features and ore-controlling factors of the East Qiyi Shan ore deposit. It is suggested that it is a polymetallic-nonmetallic ore deposit that occurred in multiple complex intrusions with W, Sn, Rb , and CaF2 as the main minerals and Mo, Be, Fe, and Cu as the associated minerals. The ore vein group has certain inner structural styles. Certain mineralization has zonation of some degree and corresponds to certain alteration types. The regional geochemical field of W, Sn, and Mo defines that the East Qiyi Shan area has the material conditions for mineralization. During the ore-forming processes，Precambrian basement provided the mineral source，Devonian collisional orogenesis made the Precambrian basement into ore-bearing igneous magma，magmatic hydrothermal has moved and minerals has deposited under the control of various-order structures，and finally the enrichment and mineralization occurred in the favorable physical-chemical spaces. This study is useful in promoting the study of mineralization of W ore and related ore search in the whole Bei Shan area. |
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