摘要
新疆阿克陶县西昆仑布伦口一带湖积层沿木吉河呈近SN—NW向线状分布,明显受新构造运动控制,构成了线状断陷带早期沉积层位。通过1∶5万区调工作发现,该层位为现代木吉河高基座阶地的主体,在相关剖面首次获得该层位光释光(Optically stimulated luminescence,OSL)测年结果,测试年龄为(55. 5±8. 6)～(94. 8±9. 7) ka,为晚更新世。分析结果对于该区新构造运动研究具有一定的参考价值。
Lacustrine sediments in Bulunkou area of West Kunlun Mountains in Akto County is line- arly distributes along Muji River in nearly SN- NW direction, it is obviously controlled by neotectonics and forms early sedimentary formation in linear fault zones. Through 1 ： 50 000 regional geological survey, it is found that this formation is the main body of nowaday high-based Muji River terrace. Trough some relevant sections,tt is the first time to acquire its OSL（optically stimulated luminescence） dating age of （ 55.5 ±8.6） -（94.8 ±9.7 ） ka, which can provide reliable reference for the study of neotectonics in the area.
作者
方怀宾
李开文
李彩霞
Fang Huaibin;Li Kaiwen;Li Caixia(Henan Institute of Geological Survey;Henan Key LaboratoU for Metallogenetic Process of Metallic Mineral Resource and Resource Utilization)
出处
《现代矿业》
CAS
2018年第9期70-73,共4页
Modern Mining
基金
中国地质调查局地质矿产调查项目(编号:1212010610310)
关键词
光释光(OSL)测年
晚更新世
新构造运动
地质意义
Optical stimulated luminescence （OSL）
Late Pleistocene
Neotectonics
Geological sig-nificance
