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| 赣杭构造带金衢盆地燕山期基性脉岩地球化学特征及成因探讨 | |
| 引用本文： | 齐有强,胡瑞忠,刘燊,冯彩霞,田建吉,冯光英,王涛.赣杭构造带金衢盆地燕山期基性脉岩地球化学特征及成因探讨[J].地质学报,2011,85(3):354-365. |
| 作者姓名： | 齐有强 胡瑞忠 刘燊 冯彩霞 田建吉 冯光英 王涛 |
| 作者单位： | 1. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵阳,550002 2. 核工业北京地质研究院,北京,100029 3. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵阳,550002;中国科学院研究生院,北京,100049 4. 成都理工大学地球科学学院,成都,610059 |
| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目），国家重点基础研究发展计划（973计划），中国科学院地球化学研究所矿床地球化学国家重点实验室自主课题 |
| 摘 要： | 赣杭构造带金衢盆地内发育有燕山期基性脉岩,岩石类型主要为辉绿(玢)岩.K-Ar年代学研究显示基性脉岩产出时代为69.5～131.7Ma,为白垩纪岩浆活动的产物.SiO2含量范围为46.70%～50.23%,K2O+Na2O为4.01%～7.82%,可分为碱性和亚碱性岩两类.微量元素相对富集大离子亲石元素(LILE)(K... |
| 关 键 词： | 赣杭构造带 金衢盆地 基性脉岩 元素地球化学 岩石成因 |
| 收稿时间： | 2010/7/21 0:00:00 |
| 修稿时间： | 2010/11/22 0:00:00 |
Study on the geochemical characteristics and petrogenesis of Yanshanian mafic dikes from the Jinqu basin, Gan-Hang tectonic belt |
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| Qi You Qiang,Hu Ruizhong,Liu Shen,Feng Caixi,Tian Jianji,Feng Guangying and Wang Tao.Study on the geochemical characteristics and petrogenesis of Yanshanian mafic dikes from the Jinqu basin, Gan-Hang tectonic belt[J].Acta Geologica Sinica,2011,85(3):354-365. | |
| Authors: | Qi You Qiang Hu Ruizhong Liu Shen Feng Caixi Tian Jianji Feng Guangying and Wang Tao |
| Institution: | Institute of Geochemistry, Chinese Academy of Sciences,Institute of Geochemistry, Chinese Academy of Sciences,Institute of Geochemistry, Chinese Academy of Sciences,Institute of Geochemistry, Chinese Academy of Sciences,Beijing Research Institute of Uranium Geology,Institute of Geochemistry, Chinese Academy of Sciences,Chengdu University of Technology |
| Abstract: | Mesozoic mafic dykes in the Jinqu basin,Gan-Hang tectonic belt are predominantly diabases.The K-Ar dating study shows that the mafic dykes with age ranging from 69.5Ma to 131.7Ma are the result of magma intrusion during the Cretaceous Period.The SiO2 contents of 46.70% to 50.23% and K2O+Na2O of 4.01% to 7.82% suggest that they belong to alkaline and sub-alkaline rocks.The trace elements are characterized by enrichment in LREE and LILE(K,Rb,Ba),and depletion in HREE and HFSE(Ta,Nb,Ti).Magma came from relativ... |
| Keywords: | Gan-Hang tectonic belt Jinqu basin mafic dikes elemental geochemistry petrogenesis |
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