| 吉林塔东铁矿赋矿建造地球化学特征及其地质构造意义 |
| |
| 引用本文： | 寇林林,张森,吕俊超,刘桂香.吉林塔东铁矿赋矿建造地球化学特征及其地质构造意义[J].地质与资源,2013,22(4):289-295. |
| |
| 作者姓名： | 寇林林 张森 吕俊超 刘桂香 |
| |
| 作者单位： | 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110034 |
| |
| 基金项目： | 中国地质调查局"辽东吉南成矿带铁铜矿选区研究与成果集成" |
| |
| 摘 要： | 塔东铁矿严格受层位控制,产于新元古界塔东群拉拉沟岩组中,属于大型沉积变质型磁铁矿床.赋矿火山岩岩石化学成分具有低SiO2、高MgO、富Na2O的地球化学特征,火山岩成分点集中分布于造山带(岛弧或活动大陆边缘)火山岩区;亲幔元素(Cr、Ni、Co)相对亏损,大离子亲石元素相对富集;含有较高的总稀土和高度富集LREE,贫HREE,显示在火山岩成分中加入较多的陆壳成分.该矿床形成于与板块俯冲体系有关的岛弧或活动大陆边缘构造背景.
|
| 关 键 词： | 地球化学特征 地质构造意义 赋矿建造 塔东铁矿 吉林省 |
| 收稿时间： | 2012-06-04 |
GEOCHEMICAL CHARACTERISTICS AND TECTONIC IMPLICATION OF THE IRON ORE FORMATION IN TADONG AREA, JILIN PROVINCE |
| |
| KOU Lin-lin
,
ZHANG Sen
,
LV Jun-chao
,
LIU Gui-xiang.GEOCHEMICAL CHARACTERISTICS AND TECTONIC IMPLICATION OF THE IRON ORE FORMATION IN TADONG AREA, JILIN PROVINCE[J].Geology and Resources,2013,22(4):289-295. |
| |
| Authors: | KOU Lin-lin ZHANG Sen LV Jun-chao LIU Gui-xiang |
| |
| Institution: | Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110034, China |
| |
| Abstract: | The Tadong iron deposit, hosted and strictly controlled by the Lalagou rock formation of Neoproterozoie Tadong group, belongs to a large scaled sedimentary metamorphic type of magnetite deposit. Petrochemically, the ore-bearing volcanic rocks are characterized by low SiO2, high MgO and rich Na20, concentrated in orogenic belt area （island arc or active continental margin） by compositions, with relatively depleted pro-mantle elements （Cr, Ni and Co）, concentrated large-ion lithophile elements, high ~REE, highly concentrated LREE and depleted HREE content, suggesting that much continental crust material has been added to the volcanic rock composition. The deposit was formed in an island arc or active continental margin tectonic setting, which was related to the plate subduetion system. |
| |
| Keywords: | geochemical characteristics tectonic implication host formation Tadong iron deposit Jilin Province |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
|
