| 西秦岭泽库毛海-夏德日花岗岩年代学、地球化学及构造环境分析 |
| |
| 引用本文： | 左海洋,赵亮亮,彭师华,王雷,杨光,赵永辉,王彦新.西秦岭泽库毛海-夏德日花岗岩年代学、地球化学及构造环境分析[J].矿产勘查,2021,12(11):2215-2223. |
| |
| 作者姓名： | 左海洋 赵亮亮 彭师华 王雷 杨光 赵永辉 王彦新 |
| |
| 作者单位： | 内蒙古有色地质矿业集团地博矿业有限责任公司， 内蒙古 呼和浩特 010010;内蒙古有色地质矿业集团地博矿业有限责任公司， 内蒙古 呼和浩特 010010 ;四川鑫和矿业有限责任公司，四川 成都 610000;内蒙古有色地质矿业集团地博矿业有限责任公司， 内蒙古 呼和浩特 010010 ;宝鸡西北有色七一七总队有限公司， 陕西 宝鸡 721006 |
| |
| 基金项目： | 本文受中国地质调查局项目《青海省泽库县萨卡拉卡地区I47E004021、I47E004022、I47E005021、I47E005022、I47E006022五幅1∶5万区域地质矿产调查》(1212011221140)资助。 |
| |
| 摘 要： | 研究区位于同德-泽库弧后盆地,岩浆活动以印支期中酸性岩浆岩为主。本研究利用LA-ICP-MS锆石U-Pb同位素测年方法获得毛海-夏德日花岗岩体年龄(236.39±0.96) Ma。该岩体具有富碱、富钾的特征,为高钾钙碱性系列;富集大离子亲石元素和轻稀土元素。综合前人研究成果,认为岩体属于Ⅰ型花岗岩,继承了早期岛弧火山岩的部分特征,与阿尼玛卿-勉略残余海盆在晚古生代末期向北俯冲消减有关。
|
| 关 键 词： | 毛海-夏德日花岗岩体 锆石U-Pb年龄 构造环境 泽库 |
| 收稿时间： | 2020/11/21 0:00:00 |
Chronology, geochemistry and tectonic environment analysis of the Mohai-Xiaderi granite in Zeku region, South Qinling |
| |
| ZUO Haiyang,ZHAO Liangliang,PENG Shihu,WANG Lei,YANG Guang,ZHAO Yonghui,WANG Yanxin.Chronology, geochemistry and tectonic environment analysis of the Mohai-Xiaderi granite in Zeku region, South Qinling[J].Mineral Exploration,2021,12(11):2215-2223. |
| |
| Authors: | ZUO Haiyang ZHAO Liangliang PENG Shihu WANG Lei YANG Guang ZHAO Yonghui WANG Yanxin |
| |
| Affiliation: | Inner Mongolia Nonferrous Geological mining Dibo Mining Co.LTD., Hohhot 010010, Inner Mongolia, China;Inner Mongolia Nonferrous Geological mining Dibo Mining Co.LTD., Hohhot 010010, Inner Mongolia, China;Sichuan Xinhe Mining Co.LTD., Chengdu 610000, Sichuan, China;Inner Mongolia Nonferrous Geological mining Dibo Mining Co.LTD., Hohhot 010010, Inner Mongolia, China;Baoji Northwest Nonferrous 717 LTD., Baoji 721006, Shaanxi, China |
| |
| Abstract: | The study area is located in the Tongde-Zekuback-arc basin, among which indosinian intermediate-acid rocks are widespread. Zircon LA-ICP-MS U-Pb isotope dating for Maohai-Xiaderi granite intrusion yields an age of (236.39±0.96) Ma. The granite is characteristics of alkali and potassium rich, belonging to high potassium calcium alkaline. In addition, the Maohai-Xiaderi granite is enriched in large ion lithophilic elements and light rare earth elements. Based on the previous researches, we proposed that this intrusion belongs to I-type granite, inheriting some materials that derived from early island arc volcanic rocks. The formation of the Maohai-Shadege granite was closely associated with the northward subduction of Animaqin-Mianlueocean at the end of the late Paleozoic. |
| |
| Keywords: | Mohai-Xiaderi granite U-Pb dating tectonic environment Zeku |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《矿产勘查》浏览原始摘要信息 |
|
点击此处可从《矿产勘查》下载全文 |
|
