古陶瓷产地溯源的锶同位素方法初探和应用研究

Strontium isotope analysis technology could better reveal latent information of archaeological remains, for the strontium concentrations and isotope ratios in the soil, plants and bedrock vary according to local geology. Strontium isotope (87Sr/86Sr) have been widely used in ceramics, glass, remains of human, animals and plants, while using the strontium isotope ratio (87Sr/86Sr) method to study ancient ceramics in China is still in the initial stage. Now very few works have been done in Chinese ancient ceramics research, although strontium isotope is expected to be very powerful to reveal the signatures and provenance of ceramic materials..The purposes of this study are: .1) Establishing the coupling-relationship of strontium isotope ratio between Ancient ceramics and their provenances..In this study, raw materials of Southern Guan ware in Hangzhou, Yue ware in Cixi and Ru ware in Baofeng city will be investigated and collected. The influencing factors of weathering degree of materials and processing of making ceramics will be studied by contrasting the strontium isotope ratios. Then the relationships of ancient ceramic samples and their respective provenance will be established..2) Accumulation and Evaluation of strontium isotope ratio data .Many ceramic shards, 5 to 10 samples from each kiln site, such as Jingdezhen kiln site, Jizhou kiln site, Yue kiln site, Longquan kiln site, Ru kiln site, Ding kiln site, Yaozhou kiln site, Cizhou kiln site and so on, will be collected and analyzed. Then the strontium isotope analysis data base will be established. Strontium isotope analysis data of different kiln site will be evaluated to see whether could use of Sr Isotopic Composition as a provenance discriminant. .3) Application Research of Strontium isotope method .The archaeological discovery of the Imperial Ancestral Temple Ruins of Southern Song Dynasty (1995), Lin’an prefecture administration and prefecture school of Southern Song Dynasty (2000), The Mansion of Empress Gongshengrenlie of Southern Song Dynasty (2001) and Imperial Avenue of Southern Song Dynasty (2004) are very important and honored as “Top ten new archaeological discoveries”. A lot of porcelain shards had been unearthed from these ruins, but the origins of some shards are unknown. This study will investigate the provenance of the shards using the Strontium isotope analysis and ICP-MS..We hope that this research project, which is based on accumulation and evaluation of strontium isotope ratio data and is applying to study the provenance of ceramic shards from the Lin’an city of Southern Song Dynasty, will help to further understand the significance of Strontium isotope analysis technology in the provenance study on ancient Chinese ceramics. It will also make a contribution to solve the provenance of ceramic shards from the Lin’an city of Southern Song Dynasty.

鉴于锶同位素比值方法对古陶瓷产地溯源研究的潜力和我国这方面的研究尚处于起步阶段，本课题拟初步探讨古陶瓷锶同位素组成与产地之间的关系，揭示制瓷原料的风化程度和制瓷工艺对古陶瓷锶同位素比值的影响；测试积累一批我国典型窑口制瓷原料和瓷片标本的锶同位素比值数据，并对锶同位素方法进行客观的综合评价。在此基础上，本课题采用锶同位素比值方法结合ICP-MS元素分析，探讨宋代临安城遗址出土未知窑口青瓷标本的产地问题。本课题的实施将利于深入认识锶同位素组成在古陶瓷产地溯源研究中的意义和作用，为进一步揭示南宋时期相关青瓷生产、流通和使用情况等考古问题提供新的视角和数据参考，具有十分重要的考古意义和价值。

考古学上，国外学者已广泛利用锶同位素比值方法对文物的产地信息以及原料工艺特征进行了深入研究，目前已经成为研究古代文物材料、工艺和起源的重要方法之一。而国内多将锶同位素比值分析方法运用在人类考古和动植物考古领域。目前采用该方法对我国古陶瓷进行研究尚处于起步摸索阶段。基于此，本课题探讨了古陶瓷锶同位素组成与产地原料、地质成因之间的关系，开展制作陶瓷过程（淘洗和煅烧处理）中的锶同位素行为的研究，并对古陶瓷产地溯源研究的锶同位素比值方法进行了客观、合理的综合评价。结果表明原料的风化程度和制瓷工艺可对古陶瓷胎体的锶同位素比值数据造成一定的影响，但这些影响因素并会改变古陶瓷胎体锶同位素比值的产地特征。本课题对我国南北方十二个典型窑口制瓷原料和瓷片标本的锶同位素比值和元素组成含量进行了测试分析，结果表明南北方不同窑口古陶瓷胎体锶同位素比值数据具有明显的产地示踪作用。在此基础上，本课题采用锶同位素比值方法结合元素分析方法解决了宋代临安城遗址出土未知窑口瓷器标本的产地问题，其中大部分标本应该是杭州所产的官窑瓷器，而有一块标本则属于龙泉窑的产品。本课题的研究结果表明锶同位素比值（87Sr/86Sr）方法可为杭州南宋遗址出土官窑类瓷片标本的断源、断代研究提供另一视角的数据支持和佐证。.总之，通过本课题的深入开展，进一步清晰的认识了锶同位素比值方法在古陶瓷产地溯源研究中的意义和作用。该方法有望成为今后古陶瓷产地溯源研究方面的有效方法之一。