山西省襄汾县陶寺遗址出土动物牙釉质的锶同位素比值分析  

STRONTIUM ISOTOPE ANALYSIS OF ARCHAEOLOGICAL FAUNA FROM THE TAOSI SITE,XIANGFEN COUNTY,SHANXI PROVINCE

作　　者：赵春燕[1] 袁靖[1] 何努[1] 

机构地区：[1]中国社会科学院考古研究所,北京100710

出　　处：《第四纪研究》2011年第1期22-28,共7页Quaternary Sciences

基　　金：国家科技支撑计划项目(批准号:2006BAK21B03)资助

摘　　要：锶同位素分析技术已经成为国际考古学界用于探索人和动物迁移活动的主要方法。陶寺遗址位于山西省襄汾县陶寺镇,距今4500～3900年,是目前我国规模最大的、显现文明化程度最高的史前聚落遗址之一。文章通过热电离质谱分析方法对山西襄汾县陶寺镇陶寺遗址龙山晚期出土动物的14个动物牙釉质的锶同位素比值进行了测定。研究结果表明,5个猪牙釉质的锶同位素比值的标准偏差远远小于其他动物,其平均值是0.711179,将该平均值加或减2倍标准偏差得到陶寺遗址当地的锶同位素比值范围在0.711314～0.711044之间。根据遗址当地的锶同位素比值范围可以发现在我们所测定的样品中,有2只绵羊和2头黄牛的^(87)Sr/^(86)Sr比值在当地锶同位素比值范围以外,据此推测这些羊和牛有可能不是在当地饲养的。Of all the isotopes that are currently analyzed in archaeological skeletal tissues, strontium isotopes are one ot the most effective for characterizing prehistoric human and animal mobility. Strontium isotope analysis of incrementally developed dental tissues can be used to reveal patterns of movement in animals. In principle, the method works quite simple. Different rocks are characterized by distinct ratios of two isotopes of strontium,87Sr and 86Sr. As rocks were weathered into soils ,the plants growing in those soils acquired the 87Sr/86Sr ratio. Animals that ate the plants incorporated strontium into their skeleton, animal skeletal tissues, however？, often display a remarkable homogeneity in values within a given region, suggesting that they acquired strontium from a range of local sources and thus provide a ＂regional average＂ of bioavailable strontium. A large amount of circumstantial evidence suggests that tooth enamel retains an in vivo strontium isotopic signature, even in samples thousands or hundreds of thousands of years old. This means that tooth enamel is a more sensitive and reliable indicator of migration than bone tissue. Since different species occupy different regions with varying home ranges, the choice of local animal is best made specifically for the particular site, using both archaeological evidence and,if possible, measuring 87Sr/86Sr in enamel samples from different species. The Taosi site is located at Xiangfen County,Shanxi Province. This site is a large settlement site of Longshan culture,and it is dated to be 4500 -3900aB. P. According to zooarchaeology＇s study,five domestic animals such as dog, pig, goat, sheep and cattle were found from the site. The purpose of our study is to discuss the problem of strontium isotope analysis used to identify non-local individuals at Taosi site. Tooth Enamel samples from 14 domestic animals individuals were analyzed for strontium isotope ratio （87Sr/86Sr）, by the thermal ionization mass spectrometry, including 5 pigs, 5 sheeps/goats

关 键 词：陶寺遗址 动物 锶同位素 

分 类 号：K878[历史地理—考古学及博物馆学] P597[历史地理—历史学]