| 冰川沉积物成因确定的一种新方法 |
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| 关键词:acoustic emission stress gravel moraine recognition |
| 基金项目:“九五”基础项目、部青年基金项目(编号9610)，1999年部新上科技项目(编号9909) |
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| 摘要: |
| A New Method for Identifying Moraine |
| The identification of glacial sediment has long been a subject of controversy,especially about how to identify the Quaternary moraine.It is really a challenge for us to recognize moraine by means of characteristic analysis in sedimentology and geomorphology.These years we have tried our best to find the stress information of gravel in relation to glaciation,and have obtained some new understanding concerning the identification of moraine through the measurement of historical stress of acoustic emission.First,we determined the acoustic emission stress of the gravel beneath the existing glacier,then compared it with the actual stress by calculation,which showed that they were nearly equal.Then,the gravel of real Quaternary moraine was proved to have corresponding record of accoustic emission stress related to glaciation.At last,we probed into the Quaternary moraine in Lushan Mountain through the measurement of AE stress of gravel,and found the stress related to Quaternary glacier.It is undoubtedly believable that the Quaternary muddy gravel in Lushan Mountain is moraine instead of other sediments.The measurement of stress of accoustic emission of gravel is a new method for recognizing moraine. |
| ZHAO Zhi-zhong,DING Yuan-chen,QIAN Fang,HE Pei-yuan,SHAO Zhao-gang.2000.A New Method for Identifying Moraine[J].Acta Geoscientica Sinica,21(4):396-400. |
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