甘肃玉门花海西晋墓群出土木牍的保护

甘肃河西地区出土文物特殊的高盐碱埋藏地质环境,造成画像砖、木质文物、丝织品等文物埋藏期间大量盐碱的渗入。文物出土后,随着环境温湿度的变化,使得文物内部盐碱重结晶,直接导致了画像砖画面脱落、木质文物崩裂及丝织品脆化。本工作针对甘肃玉门花海西晋墓群出土木牍的损害状况,进行了表面清理、渗透填充加固、脱盐及对个别器物进行了回软整形等保护,保护处理后状况良好,保护方法对同一地区出土其他木质文物的保护有借鉴作用。

Conservation of wooden slips unearthed from Western Jin Dynasty tombs at Huahai in Yumen, Gansu province, China

Artifacts such as painted bricks,wood,silk,and etc experienced infiltration of large quantity of salinealkali from the soil while buried underground in the Hexi Corridor of Gansu province. The infiltration is the result of a longterm effect of the region's special geological feature which has a high content of salinealkali.The salinealkali recrystallized within the artifacts.The changes in temperature and humidity after the excavation led to paint falling off the brick,cracking of wood and embrittlement of the silk textiles.The conservation carried out for the wooden slips includes surface cleaning,reinforcement through infiltration,desalinization,softening and shape recovery.The artifacts are in good condition after treatment.This procedure can be used as reference for the conservation of other wooden artifacts unearthed from the same region.