南宋官窑制胎原料的科技分析——兼谈制瓷工艺对锶同位素比值的影响

Scientific and Technological Analysis on Raw Materials used to Make Guan Kiln Ware Body: Influence of Producing Technology on Isotope Ratio of Sr

南宋老虎洞官窑遗址是2001年"全国十大考古新发现"之一,在陶瓷史上占有重要的地位和意义,具有较高的历史、文化和科技研究价值。鉴于锶同位素比值(^(87)Sr/^(86)Sr)是近年来兴起的一种研究古代各种文物材料来源和工艺的重要方法,本文拟采用元素组成和锶同位素比值(^(87)Sr/^(86)Sr)方法对杭州老虎洞宋代官窑遗址周边的制瓷原料和老虎洞官窑青瓷标本胎体进行了测试分析,以期揭示老虎洞宋代官窑胎体制瓷原料的特征,并初步探讨制瓷工艺(淘洗处理)对元素组成和锶同位素比值的影响。结果表明采集的当地原料样品可分为低铝、高硅和高铝、低硅两类,其中南宋官窑胎体采用的是高铝、低硅类原料;高铝、低硅类原料的锶同位素比值略高于官窑胎体,其原因可能与制瓷工艺(淘洗处理)和原料的风化程度有关。本文为科学认识制瓷工艺对锶同位素比值的影响以及评价锶同位素比值方法在古陶器产地溯源研究中的意义和作用具有重要的参考价值。

Laohudong kiln site in Southern Song is one of the ＂National top ten archaeological discoveries＂ in 2001. The Guan ware made in this site has high historical, cultural and scientific research value. Analysis of Sr isotope ratio（^（87）Sr/^（86）Sr） could offer a powerful tool to identify the origin of the raw materials used to make ceramics, it is playing an increasingly significant role for deeply understanding ancient materials. In this paper, Sr isotope ratio, major and trace elements of raw materials and Guan ware shards collected in Laohudong site were determined using TIMS, EDXRF and ICP-MS. The results showed： 1） The raw materials can be classified into two groups of low Alhigh Si group and high Al-low Si group. The high Al-low Si group could be used to made Guan ware body. 2） The strontium isotope ratio of raw materials is sligh tly higher than that of Guan ware body, the reason may be related to the degree of weathering and porcelain making technology（washing treatment）. This article provided an important reference value for scientific understanding of influence of porcelain making process on strontium isotope ratio and the significance and function of strontium isotope ratio method in the research.