| 山西宁武"万年冰洞"形成机制初探 |
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| 关键词:Ningwu in Shanxi "Ten-Thousand-Year-Old Ice Cave" formation mechanism glacial action |
| 基金项目:中国地质调查局“山西宁武万年冰洞形成机制及其环境意义”项目(编号:200313000067) |
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| A Discussion on the Formation Mechanism of the "Ten-Thousand-Year-Old Ice Cave" in Shanxi Province |
| The “Ten-Thousand-Year-Old Ice Cave” is a rare cave in the world. The preserved ice bodies in the vertical cave are very rarely seen both in quality and in quantity. Studies show that the formation of the ice bodies in the ice cave is related mainly to Quaternary glaciation. The ice bodies were formed in Early Pleistocene epiglacial epoch. The excellent preservation of the ice bodies is related to various factors, such as the geographical setting, the low-temperature protective layer, i.e., the ice room effect resulting from the thermal equilibrium of the ice body and the country rock, the existence of the vertical cave, the window room effect, i.e., the thermal-equilibrium between the ice body and fissure air in the country rock, and the thermodynamic effect caused by underground coal combustion. The formation and preservation of the “Ten-Thousand-Year-Old Ice Cave” constitutes the true record and the witness of the climatic and environmental variation in the same area, and can provide important practical data and basis for the study of climatic and environmental variation in this area and in North China. Therefore, the study of this subject is of very high scientific value and practical significance. |
| MENG Xian-gang,ZHU Da-gang,SHAO Yao-gang,YU Jia,HAN Jian-en,MENG Qing-wei.2006.A Discussion on the Formation Mechanism of the "Ten-Thousand-Year-Old Ice Cave" in Shanxi Province[J].Acta Geoscientica Sinica,27(2):163-168. |
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