| 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,(6):21-25 |
| 青海锡铁山矿区滩间山群新认识 |
| REVISION ON TANJIANSHAN GROUP IN THE XITIESHAN MINE, QINGHAI PROVINCE |
| 投稿时间：2006-07-24 修订日期：2006-08-05 |
| DOI： |
| 中文关键词: 滩间山群 时代 层序 锡铁山 柴达木北缘 |
| 英文关键词: Tanjianshan group, age, sequence, Xitieshan, northern margin of Qaidam basin |
| 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 |
| 樊俊昌 李峰 |
| [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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| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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