| 江西庐山牧马场剖面泥砾堆积物的成因分析及年代测定 |
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| 关键词:Lushan Mountain Quaternary glaciation glacial deposit Scanning Electron Microscopy ESR dating |
| 基金项目:中国地质大学(北京)基本科研业务费专项资金项目(编号: 2011YYL016) |
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| Genetic Type Analysis and ESR Dating of Quaternary Deposits along the Mumachang Profile in the Lushan Mountain in Jiangxi Province |
| Quaternary morainic deposits in the Lushan Mountain has long been one of the controversial subjects. The authors used Scanning Electron Microscopy (SEM) to analyze the shape and texture of the quartz sand grains along the Mumachang profile, identified the genetic types, and applied Electron Spin Resonance (ESR) dating to determine their age. The SEM analysis confirms that the deposits was glacial and glaciofluvial sediments; the ESR dating indicates that it was formed at the late stage of Middle Pleistocene (225.5±20)~(242.6±24) ka BP, equivalent to the Lushan Glaciation. According to the experiment, the authors are of the opinion that there exist glacial traces in the Mumachang profile, but the timing and extent remains to be investigated and further improved. |
| CHEN An-dong,TIAN Ming-zhong,ZHAO Zhi-zhong,QIAN Fang,ZHANG Zhi-guang.2014.Genetic Type Analysis and ESR Dating of Quaternary Deposits along the Mumachang Profile in the Lushan Mountain in Jiangxi Province[J].Acta Geoscientica Sinica,35(1):111-118. |
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