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| 宁夏卫宁北山地区矿床类型及成矿时代 | |
| 引用本文： | 艾宁,任战利,李文厚,张连昌,黄世武.宁夏卫宁北山地区矿床类型及成矿时代[J].矿床地质,2011,30(5):941-948. |
| 作者姓名： | 艾宁 任战利 李文厚 张连昌 黄世武 |
| 作者单位： | 1. 西北大学,陕西西安710069;宁夏地质调查院,宁夏银川750021 2. 西北大学,陕西西安,710069 3. 中国科学院地质与地球物理研究所,北京,100029 4. 北京科技大学,北京,100029 |
| 基金项目： | 本文得到中央地勘基金宁夏卫宁北山多金属矿预查项目的资助 |
| 摘 要： | 从大地构造位置及区域成矿背景来看,卫宁北山地区具备寻找到大型多金属矿床的良好前景.笔者对黄石坡沟典型矿段的研究,证明了该区广泛出露的石英闪长玢岩与成矿的关系非常密切.为了确定该矿床的成矿时代,首次使用锫石微区定年技术,对二人山、金场子等典型矿段中闪长玢岩内的锫石进行了年龄测定,确定了该区有2期岩浆侵入活动,2期岩浆侵入... |
| 关 键 词： | 地质学 地球化学 成矿时代 成矿类型 金属矿 卫宁北山 宁夏 |
Metallogenic epoch and ore_forming types of ore deposits in Weiningbeishan area, Ningxia |
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| AI Ning,REN ZhanLi,LI WenHou,ZHANG LianChang,HUANG ShiWu.Metallogenic epoch and ore_forming types of ore deposits in Weiningbeishan area, Ningxia[J].Mineral Deposits,2011,30(5):941-948. | |
| Authors: | AI Ning REN ZhanLi LI WenHou ZHANG LianChang HUANG ShiWu |
| Institution: | AI Ning1,2,REN ZhanLi1,LI WenHou1,ZHANG LianChang3 and HUANG ShiWu4(1 Northwest University,Xi'an 710069,Shaanxi,China,2 Geological Survey of Ningxia,Yinchuan 750021,Ningxia,3 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,4 University of Science and Technology of Beijing,China) |
| Abstract: | Considering the favorable prospects for forming large complex deposits in the Weiningbeishan area of Ningxia because of its unique tectonic structure circumstances and regional mineralization background, the authors' researches focused on this promising area. A study of the typical Huangshipo ore block reveals that the quartz diorite porphyrite veins widely exposed here are closely related to mineralization. In order to further confirm the metallogenic epoch, the authors used for the first time zircon microdomain dating technology in the study area. In Errenshan and Jinchangzi areas, sampling of zircons was conducted in quartz diorite porphyrite veins existent in the typical ore block. Zircon dating has confirmed that there are two-period magmatic intrusions in the area, they all related to mineralization. The authors also systematically investigated the deposit type for the first time, and found that it is of the structure-magmatic hydrothermal ore-forming system. The ore deposit should be of the low-to-moderate temperature hydrothermal type, and the industrial type should be tectonic alteration type. |
| Keywords: | geology geochemistry metallogenic epoch ore-forming types metal mine Weiningbeishan Ningxia |
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