饱水木质文物的风冷干燥脱水研究

许多出土饱水木质文物因其降解严重、含水率较高,容易在脱水过程中出现不可逆的收缩变形以及开裂现象,从而遭到严重破坏。因此,饱水木质文物脱水方法的研究是文物保护工作中的重要课题。为探究风冷冷冻法对饱水木质文物脱水的效果,以一批无法复原的出土饱水木质文物为研究对象,在对其材种、含水率、基本密度及化学成分进行了测定和分析后,使用一台风冷电冰箱在-18℃条件下对样品进行了风冷干燥脱水处理,记录脱水时间和脱水效果,并分析了该方法的传质传热特点,证明了风冷干燥法用于饱水木质文物的脱水干燥能够取得良好效果,并且具有对文物干预小、适用性广、操作简便、成本低廉等优点,为饱水木质文物的脱水处理提供了一种新的思路。     

古代彩绘文物中的胶结物研究现状——基于Web of Science数据库研究论文的定量统计分析

为了解古代彩绘文物中胶结物的研究现状和发展趋势,本研究利用Web of Science核心数据库,对古代彩绘中常见的胶结物(蛋白质类胶结物、植物胶、干性油、天然树脂、天然蜡)的研究论文进行了收集整理。通过对数据库中发文时间截至2017年的研究论文进行了系统检索,对期刊论文的年份、收录情况、期刊种类、作者、研究机构、被引数和影响因子等进行定量分析,并对中国学者的研究论文进行统计,以此了解国际国内彩绘文物胶结物的研究现状和发展水平。此外,还对近年来迅速发展的免疫分析技术在彩绘文物胶结物检测中的应用进行统计,以此了解免疫法在检测彩绘文物蛋白质类胶结物中的适用性。     

Archaeozoological research on vertebrates in Central Europe with special reference to the medieval period

This paper is the outcome of a lecture held at the Institute of Archaeology, University College London. It provides a summary in English of the archaeozoological research work which has been carried out in Central Europe during the last 30 years, with special reference to material from medieval times. It is shown that a thorough zoological analysis of bones from excavations provides much information for historical interpretation. Not only was the ratio of wild and domestic animals or of the different species of interest, but also the age and sex structure of the population by taking the function of the site into consideration. Some observations on animal teeth gave indications of distinctive handicrafts. Cut marks on cervical vertebrae of horse skeletons found as grave goods from early medieval times were considered in connection with beliefs and juridical conceptions of that time.     

崇庆寺宋代彩塑的病害调查与分析思考

为了科学保护山西省崇庆寺宋、明时期的彩塑文物,作者深入调查了该寺彩塑的现状与病害,分析检测了泥塑土的配比、成分与彩绘颜料,并对比分析了该寺不同时期彩塑的材质及工艺特点。结果表明,宋代彩塑的病害类型、严重程度等较其它时期的彩塑明显要少和轻。这一现象启示我们探讨这批彩塑的造型设计、制作技艺、材料选择等具有重要的现实意义。     

Investigating Human Migration and Horse‐Trading in Yelang (夜郎) Through Strontium Isotope Analysis of Skeletons from Zhougshui Sites,South‐West China (1300 bc – ad 25)

Yelang (夜郎), a mysterious state located in the south‐western area of early China and dating from the Bronze Age to the Early Iron Age (1300 bc – ad 25), is a cultural interactive junction between the Yunnan–Guizhou Plateau and the Yangtze River Basin. The Zhongshui Basin in Weining County, Guizhou Province, was one of the important distribution areas of the Yelang civilization. This area, which includes sites at Jigongshan (鸡公山; 1300 – 800 bc ), Hongyingpan (红营盘; 700 – 400 bc ) and Yinzitan (银子坛; 400 bc – ad 25), has provided a very integrated chronology, spanning from the Bronze Age to the Early Iron Age in the eastern Yunnan – western Guizhou area. To investigate human migration and horse‐trading at these Yelang sites, we conducted a strontium isotopic analysis on the teeth enamel of humans and horses unearthed from these three sites. The results indicated the following: (1) people at the earlier sites (Jigongshan and Hongyingpan) were all indigenous, whereas in the Yinzitan cemetery, there was a more immigrant population, and all the people who were buried in an upper limb flexed supine position were non‐local; and (2) most of the horses found at the Jigongshan and Yinzitan sites show different provenances, probably related to the famous Dian (滇) and Zuo (筰) horses recorded in historical documents, providing more clues for further study on horse‐trading in South‐West China during the Bronze Age and the Early Iron Age.     

Two Ancient Wooden Anchors from Ein Gedi, on the Dead Sea, Israel

Two ancient wooden anchors with ropes, dating to different periods, were found on the western shore of the Dead Sea. The one-armed anchor was dated by 14C to the Late Iron Age—Persian Period, and the second anchor to the Roman Period. The saline water of the Dead Sea preserved the wood and ropes, but corroded almost all the metal parts. A thin black crust of lead and a green crust of copper are the only remains of the collar of the Roman anchor. The finds were made from local tree species and were probably made locally: the one-armed anchor from Acacia, the Roman one from Christ-thorn, and both ropes of date-palm.
© 2005 The Nautical Archaeology Society     

潮湿彩绘陶加固材料对比研究及应用

针对考古出土的彩绘陶存在脆弱易毁、难以保存的问题,选择明胶和水性氟碳作为潮湿彩绘陶片的加固材料,采用不同浓度的加固材料对4种颜色彩绘陶片进行加固,并对加固前后的强度、色差以及光泽度进行检测和对比,结果表明较为理想的浓度选择为明胶在1%左右,水性氟碳浓度在20%左右。同时,对有底层和无底层两种类型的彩绘陶片进行加固对比实验,发现经明胶加固及老化后,有底层试样的色差和光泽度变化比无底层试样小;经水性氟碳加固后,有底层试样的色差和光泽度变化比无底层试样小,但老化后,则相反。在实践应用时,选用这两种材料对盱眙出土的一组潮湿彩绘陶进行了抢救性加固保护,都取得理想的效果。     

聚醋酸乙烯酯乳液的表征、性能及其在彩绘类文物保护中的应用

聚醋酸乙烯酯(PVAc)乳液是常见的彩绘类文物保护材料。采用激光粒度仪、热重/差热分析、红外光谱、X-射线衍射、扫描电镜、透射电镜等表征了PVAc乳液的粒径以及胶膜的热稳定性、结构和形貌;采用粘度计、表面张力仪、pH计、电导率仪等研究了乳液浓度与其粘度、表面张力、pH、电导率的关系;通过冻融、室温-高温放置、离心分离研究了乳液的稳定性;同时用PVAc乳液对模拟起甲和酥碱的壁画进行了修复。结果表明,PVAc乳液粒径呈双峰分布,小粒子的平均粒径为380 nm,大粒子的平均粒径为5.85μm;乳液胶膜为非结晶物质,胶膜热重的最终质量残留为1.54%,335℃出现放热峰。PVAc乳液的电导率随浓度的增大而增大,pH随浓度的增大而下降;相同温度下表面张力随浓度的增大而基本呈现低浓度下降,高浓度上升的趋势。相同浓度下,表面张力随温度升高而无显著变化,表明PVAc乳液的表面张力受温度变化影响不大。相同温度下,乳液粘度随浓度的增大而增大;相同浓度下,乳液的粘度随温度的升高而降低。冻融、离心分离和不同温度下静置发现,该乳液出现分层。用该乳液对模拟起甲和酥碱壁画修复后,再分别老化20个循环和12个循环,发现颜料层再次空鼓、起甲。综合分析,说明实验中所使用的该种PVAc稳定性和抗老化能力较弱,在修复彩绘类文物中应慎重选择PVAc的种类,综合考虑PVAc的使用浓度、环境因素对其性能的影响,以达到最佳使用效果。     

陕西蓝田水陆庵彩绘泥塑颜料分析研究

水陆庵位于陕西蓝田王顺山下,庵内现存三百余平方米精美绝伦的明代彩绘泥塑,是我国泥塑保存最多、最完整的明代彩绘泥塑群之一。为明确水陆庵彩绘泥塑的颜料使用情况,采用光学显微镜、X射线衍射仪、显微红外光谱仪、扫描电镜-能谱仪和显微拉曼光谱仪对颜料样品进行科学分析。结果表明,除中隔壁背面重妆区域的蓝色颜料主要成分是普鲁士蓝之外,水陆庵彩塑使用的颜料大多为矿物颜料,包括铅丹、朱砂、铁红、氯铜矿、雌黄和云母等。研究结果将为水陆庵后续保护修复提供科学依据,并为丰富关中地区明代彩绘泥塑颜料类型补充科学信息。     

Potential osteoarchaeological evidence for riding and the military use of horses at Malbork Castle,Poland

The paper explores interpretations of two sets of pathological horse vertebrae identified during analyses of animal bones from recent excavations at the castle at Malbork in northern Poland (formerly Marienburg in Prussia). One specimen dates to the 18th century and the other to the medieval period. The castle was initially constructed by the Teutonic Order from the late 13th century and occupied by military institutions into the 19th century, and is one of the largest fortified structures in Europe. The pathological vertebrae are attributed to prolonged load‐bearing. The problematic interpretation of the remains from the medieval context as belonging to a warhorse is discussed. Warhorses are widely described in contemporary documentary sources which indicate that mares were typically kept in farms on the Order's estates in late‐medieval Prussia, while studs were separately stabled at castles. There is not enough data to confirm the medieval specimen as a warhorse, and both vertebrae may simply represent riding animals. Copyright © 2009 John Wiley & Sons, Ltd.