| 青海锡铁山矿区滩间山群新认识 |
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| 引用本文： | 樊俊昌,李峰.青海锡铁山矿区滩间山群新认识[J].地质与勘探,2006,42(6):21-25. |
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| 作者姓名： | 樊俊昌 李峰 |
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| 作者单位： | 1. 西部矿业股份有限公司,西宁,810001
2. 昆明理工大学国土资源工程学院,昆明,650093 |
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| 基金项目： | 国家科技攻关计划，西部矿业股份有限公司科技项目联合资助项目 |
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| 摘 要： | 锡铁山滩间山群是重要的含矿火山-沉积建造.基于野外地质特征、古生物组合、同位素年龄、构造-热事件和火山-沉积演化等的综合分析,文章认为滩间山群形成于早-晚奥陶世,并重新厘定了4个(构造-)岩石地层单位.新建层序反映柴北缘早古生代经历了大陆裂谷开合演化过程.
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| 关 键 词： | 滩间山群 时代 层序 锡铁山 柴达木北缘 |
| 文章编号： | 0495-5331(2006)06-0021-05 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006-08-05 |
REVISION ON TANJIANSHAN GROUP IN THE XITIESHAN MINE, QINGHAI PROVINCE |
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| FAN Jun-chang,LI Feng.REVISION ON TANJIANSHAN GROUP IN THE XITIESHAN MINE, QINGHAI PROVINCE[J].Geology and Prospecting,2006,42(6):21-25. |
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| Authors: | FAN Jun-chang LI Feng |
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| Institution: | 1. Western Mining Company, Xihing 810001 ; 2. Faculty of Land Resource Engineering, Kunming University of Scienee and Technology, Kunming 650093 |
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| Abstract: | Tanjianshan group distributed in the northern margin of the Qaidam basin is an important ore-bearing volcanic-sedimentary formation of the Early Palaeozoic.Combined with analyses of field geological features,palaeontological association,isotope ages,tectono-thermal events and volcanic-sedimentary evolution,it is confirmed that Tanjianshan group,formed in the early-late Ordovician,can be divided into four(tectono-) lithostratigraphic units.According to the new sequence of Tanjianshan group,it is also suggested that an opening-closing evolution cycle of intracontinental rife took place during Ordovician in the region. |
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| Keywords: | Tanjianshan group age sequence Xitieshan northern margin of Qaidam basin |
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