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| 内蒙古东部闹牛山—巨里河铜多金属矿带岩浆活动与成矿的关系 | |
| 引用本文： | 康明,岑况,罗先熔,陈祥.内蒙古东部闹牛山—巨里河铜多金属矿带岩浆活动与成矿的关系[J].现代地质,2004,18(2):210-216. |
| 作者姓名： | 康明 岑况 罗先熔 陈祥 |
| 作者单位： | 1. 中国地质大学"岩石圈构造、深部过程及探测技术"教育部重点实验室,北京,100083;桂林工学院,资源与环境工程系,广西,桂林,541004 2. 中国地质大学"岩石圈构造、深部过程及探测技术"教育部重点实验室,北京,100083 3. 桂林工学院,资源与环境工程系,广西,桂林,541004 |
| 基金项目： | 有色金属国家重点找矿区带科技攻关项目(199405). |
| 摘 要： | 内蒙古东部闹牛山—巨里河铜多金属矿带的岩浆活动主要属华力西晚期和燕山早期的两大构造旋回 ,矿带上已发现的铜多金属矿床的成矿时代绝大部分为燕山早期 ,成矿与燕山早期中酸性浅成—超浅成的岩浆侵入活动关系密切。区内火山—次火山岩的稀土总量低 ,w(∑Ce) /w(∑Y)比值高 (2 7～ 14 1) ,具微弱铕亏损 ,表明岩浆岩为上地幔—下地壳的混合来源 ,成矿岩体具有基性程度高、来源深的特点 ,属钙碱性岩石系列 ,富Si、K而贫Fe、Mg。岩浆岩中Bi、W、Sn、Ag、Pb、Cu等成矿元素及伴生元素的丰度较高 ,为本区的成矿提供了物质来源。 |
| 关 键 词： | 侵入岩和火山岩 地球化学特征 铜多金属矿带 内蒙古东部 |
| 文章编号： | 1000-8527(2004)02-0210-07 |
| 修稿时间： | 2003年11月30 |
RELATIONSHIP BETWEEN METALLOGENESIS AND MAGMATIC ACTIVITIES IN THE NAONIUSHAN-JULIHE COPPER POLYMETALLIC ORE BELT,EASTERN INNER MONGOLIA |
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| KNAG Ming.RELATIONSHIP BETWEEN METALLOGENESIS AND MAGMATIC ACTIVITIES IN THE NAONIUSHAN-JULIHE COPPER POLYMETALLIC ORE BELT,EASTERN INNER MONGOLIA[J].Geoscience——Journal of Graduate School,China University of Geosciences,2004,18(2):210-216. | |
| Authors: | KNAG Ming |
| Abstract: | Magmatic activities in the Naoniushan-Julihe copper polymetallic ore belt are mainly composed of two structural cycles, i.e. structural cycle in late Variscan period and early Yanshanian period. The ore-forming ages of the discovered copper polymetallic deposits are dominantly early Yanshanian period, and metallogenesis are related to intrusive rocks in early Yanshanian period, especially to hypabyssal-supper hypabyssal intermediate-acidic and acidic rocks. Total content of rare earth elements in volcanic-subvolcanic rocks in the area is low, and the ratio of ΣCe to ΣY is high(2.7 to 14.1),and Eu anomaly is little. These rocks, which originated from upper mantle to lower crust, belong to calcic-alkalic rock series that are rich in Si, K and poor in Fe, Mg. Ore-forming elements and associated elements, such as Bi, W, Sn, Ag, Pb, Cu are characterized by high abundance value, which provide ore-forming material sources for the copper polymetallic ore belt. |
| Keywords: | intrusive and volcanic rock geochemical characteristic copper polymetallic ore belt eastern Inner Mongolia |
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