| 东昆仑哈日扎含矿花岗闪长斑岩LA-ICP-MS锆石U-Pb定年及地质意义 |
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| 引用本文： | 宋忠宝,张雨莲,陈向阳,江磊,李东生,舒晓峰,栗亚芝,李金超,孔会磊.东昆仑哈日扎含矿花岗闪长斑岩LA-ICP-MS锆石U-Pb定年及地质意义[J].矿床地质,2013,32(1):157-168. |
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| 作者姓名： | 宋忠宝 张雨莲 陈向阳 江磊 李东生 舒晓峰 栗亚芝 李金超 孔会磊 |
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| 作者单位： | 1. 西安地质矿产研究所,陕西西安,710054
2. 青海省第三地质矿产勘查院,青海西宁,810029 |
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| 基金项目： | 本文得到中国地质调查局地质调查项目(1212011121089,1212010918044)的资助 |
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| 摘 要： | 哈日扎铜钼多金属矿床位于东昆仑成矿带东段,是大型斑岩型铜钼多金属矿床.笔者利用锆石LA-ICP-MS U-Pb法,获得花岗闪长斑岩的成岩年龄为(234.5±4.8) Ma(MSWD=0.24)；花岗闪长斑岩为其成矿母岩.对哈日扎花岗闪长斑岩的岩石学和地球化学研究表明,花岗闪长岩富SiO2(70.94％～76.08％)、K2O(4.91％ ～6.07％),贫CaO(0.16％ ～2.01％)、Na2O(0.24％ ～0.78％),属钾玄岩系列及高钾钙碱性系列.稀土元素总量变化较大(124.69×10-6～178.68×10-6),稀土元素配分曲线为平缓的右倾型,轻稀土元素相对富集,重稀土元素相对亏损.δEu变化范围0.26～0.30,具有弱负Eu异常.岩石微量元素相对富集大离子亲石元素(LILE),贫高场强元素(HFSE),即相对富集Rb、U、La和Nd,而亏损Ba、Sr、Nb和Y.花岗闪长斑岩形成于同碰撞构造环境.
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| 关 键 词： | 地球化学 锆石LA-ICP-MS U-Pb测年 地球化学特征 构造环境 花岗闪长斑岩 哈日扎 东昆仑 |
| 收稿时间： | 5/6/2012 12:00:00 AM |
| 修稿时间： | 2012/12/20 0:00:00 |
Geochemical characteristics of Harizha granite diorite-porphyry in East Kunlun and their geological implications |
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| SONG ZhongBao,ZHANG YuLian,CHEN XiangYang,JIANG Lei,LI DongSheng,SHU XiaoFeng,LI YaZhi,LI JinChao and KONG HuiLei.Geochemical characteristics of Harizha granite diorite-porphyry in East Kunlun and their geological implications[J].Mineral Deposits,2013,32(1):157-168. |
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| Authors: | SONG ZhongBao ZHANG YuLian CHEN XiangYang JIANG Lei LI DongSheng SHU XiaoFeng LI YaZhi LI JinChao and KONG HuiLei |
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| Institution: | Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Third Geological and Mineral Exploration Academy of Qinghai Province, Xining 810029, Qinghai, China;Third Geological and Mineral Exploration Academy of Qinghai Province, Xining 810029, Qinghai, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China;Xi'an Institute of Geology and Mineral Resources, CGS, Xi'an 710054, Shaanxi, China |
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| Abstract: | |
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| Keywords: | geochemistry LA-ICP-MS zircon U-Pb dating geochemical feature tectonic setting granite diorite-porphyry Harizha East Kunlun |
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