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| 广西大厂锡矿泥盆纪中基性火山岩的地质特征 | |
| 引用本文： | 刘陈明,秦德先,刘团峰,余阳先,姚根华,郑晓军.广西大厂锡矿泥盆纪中基性火山岩的地质特征[J].矿产与地质,2011,25(1):34-40. |
| 作者姓名： | 刘陈明 秦德先 刘团峰 余阳先 姚根华 郑晓军 |
| 作者单位： | 1. 昆明理工大学矿产地质研究所,昆明,650093 2. 陕西省地质矿产勘查开发局区域地质研究院,陕西成阳,710054 3. 西南有色昆明勘测设计(院)股份有限公司,昆明,650051 |
| 摘 要： | 近年在广西大厂锡矿泥盆纪地层中发现的中基性火山岩,主要为玄武岩、安山岩类岩石,属钙碱性-碱性系列,形成于大陆裂谷环境.火山岩表现为轻稀土富集型的,轻、重稀土比值高,Eu、Ce表现为中度亏损,重稀土元素分馏程度较高.通过对火山岩的稀土元素做Q性聚类分析得出,矿石和层状火山岩之间关系更为密切,矿石对于层状火山岩有继承性和一... |
| 关 键 词： | 锡矿床 中基性火山岩 Q型聚类分析 地球化学 裂谷 大厂 广西 |
Geological characteristics of Devonian neutral and basic volcanic of Dachang tin deposit in Guangxi |
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| LIU Chen-ming,QIN De-xian,LIU Tuan-feng,YU Yang-xian,YAO Gen-hua,ZHENG Xiao-jun.Geological characteristics of Devonian neutral and basic volcanic of Dachang tin deposit in Guangxi[J].Mineral Resources and Geology,2011,25(1):34-40. | |
| Authors: | LIU Chen-ming QIN De-xian LIU Tuan-feng YU Yang-xian YAO Gen-hua ZHENG Xiao-jun |
| Institution: | LIU Chen-ming1,QIN De-xian1,LIU Tuan-feng2,YU Yang-xian1,YAO Gen-hua1,ZHENG Xiao-jun3 (1.Research Institute of Geology for Mineral Resources,Kunming University of Science and Technology,Kunming 650093,2.Regional Geology Institute of Shaanxi Provincial Bureau of Geology and Mineral Exploration and Development,Xianyang 710054,3.Kunming Investigation and Design(Institute) Ltd.Co.of Southwest Non-ferrous,Kunming 650051) |
| Abstract: | The neutral and basic volcanic recently discovered in Devonian stratum of Dachang tin deposit of Guangxi mainly comprise the basalt and andesite series,belong to calcium alkaline-alkaline series,and formed in the continental rift environment.The volcanic has the characteristics of rich light rare earths,high ratio of light to heavy rare earths,moderate losses of Eu and Ce,and high fractionation of heavy rare-earth element.According to the Q-cluster analysis of rare-earth element of the volcanic sample,the r... |
| Keywords: | neutral and basic volcanic Q-cluster analysis geochemistry rift valley |
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