| 莫高窟壁画酥碱病害产生机理 |
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| 引用本文： | 张明泉,李最雄.莫高窟壁画酥碱病害产生机理[J].兰州大学学报(自然科学版),1995,31(1):96-101. |
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| 作者姓名： | 张明泉 李最雄 |
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| 作者单位： | 兰州大学地质学系，敦煌研究院保护所 |
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| 摘 要： | 通过对莫高窟壁画地仗层和洞窟围岩中盐分的分析对比，揭示了壁画酥碱病害的成因及形成要理，研究认为，在水分运移的同时，围岩及地仗层中的易溶盐发生水分、离子交换和重结晶作用，引起盐分向地仗层迁多和积累，盐分的积累导致地仗土颗粒间距增大，粒间连结力降低，从而使壁画发生粉化，掉块和散休。
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| 关 键 词： | 壁画 酥碱 易溶盐 调窟病害 地球化学 莫高窟 |
The Mechanisms of Efflorescent Disaster of Wall-Paintings in Mogao Grottoes |
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| Zhang Mingquan, Zhang Huyuan, Zeng Zhengzhong.The Mechanisms of Efflorescent Disaster of Wall-Paintings in Mogao Grottoes[J].Journal of Lanzhou University(Natural Science),1995,31(1):96-101. |
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| Authors: | Zhang Mingquan Zhang Huyuan Zeng Zhengzhong |
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| Abstract: | Salts in supporting earth layer of wall-paintings and in wall rocks are analized,and the mechanism of efflorescent disaster of walll-paintings in Mogao Grottoes is revealed.It is found that soluble salts both in supporting layer and within wall rocks, participating with water movement, transport and accumulate in wall-paintings by cation exchange and recrystalization. The accumulation of salts in supporting layer leads to the increase of the distance and the decrease of bonding force between soil particles. If this process develops to a certain extent, the wall-paintings will come to swell and disintegrate. |
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| Keywords: | wall-painting efflores cence soluble salts Mogao Grottoes |
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