同步辐射X射线荧光技术应用于先商动物牙齿的微量元素分析
安阳鄣邓遗址是一处以出土器物石器为主的、年代相当于二里头文化晚期的先商遗址,该遗址距离同时期的二里头遗址约200km。目前,国内对古代动物牙齿样品的微量元素分析仍然鲜少出现。本文尝试利用一种新的方法研究鄣邓动物个体的饮食状况、重金属暴露情况及其所指示的古环境信息。对4个出土动物个体的8个样品(牙釉质和牙本质)进行了同步辐射X射线荧光(SR-XRF)分析。结果显示:ZY9507的样品受到了成岩污染,不宜用作识别古环境的“指纹”;ZY9505和ZY9506的食性相似,他们主要食用以嫩叶等Sr含量较低的食物,并且,其较低的重金属积累表明鄣邓古环境中的重金属含量较低;ZY9508可能为以草类等Sr含量...
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Published in | 核技术 Vol. 36; no. 6; pp. 1 - 7 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
中国科学技术大学科技考古实验室 合肥230026%中国科学技术大学同步辐射实验室 合肥230029
2013
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Subjects | |
Online Access | Get full text |
ISSN | 0253-3219 |
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Summary: | 安阳鄣邓遗址是一处以出土器物石器为主的、年代相当于二里头文化晚期的先商遗址,该遗址距离同时期的二里头遗址约200km。目前,国内对古代动物牙齿样品的微量元素分析仍然鲜少出现。本文尝试利用一种新的方法研究鄣邓动物个体的饮食状况、重金属暴露情况及其所指示的古环境信息。对4个出土动物个体的8个样品(牙釉质和牙本质)进行了同步辐射X射线荧光(SR-XRF)分析。结果显示:ZY9507的样品受到了成岩污染,不宜用作识别古环境的“指纹”;ZY9505和ZY9506的食性相似,他们主要食用以嫩叶等Sr含量较低的食物,并且,其较低的重金属积累表明鄣邓古环境中的重金属含量较低;ZY9508可能为以草类等Sr含量较高食物为主的杂食性动物,其食物中含有较高的动物蛋白,并且其体内Cu和As的积累水平表明其可能是“外来”动物,来源地为临近的当时青铜铸造中心的二里头遗址;鄣邓遗址族群与二里头统治者己存在经济往来,但前者的周边环境整体上受二里头遗址青铜生产活动的影响较小。 |
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Bibliography: | Pre-Shang Zhangdeng site, Animal tooth, SR-XRF analysis, Eating habits, Exposure to heavy metals,Paleoenvironment Background: Anyang Zhangdeng site is a Pre-Shang site by the unearthed stone artifact mainly and the age is equivalent to the late Erlitou culture, and it is about 200 km away from the Erlitou. Currently the trace dement analysis of ancient animal skeletons' samples has rarely been seen. Purpose: This paper attempts to study the Zhangdeng animal's diet and the heavy metal exposure. The paleoenvironmental information is indicated by the former using a new method. Methods: Eight samples (enamel and dentin samples from 4 animals individuals) are tested using the synchrotron radiation X-ray fluorescence (SR-XRF) technique. Results: Fe and Mn contents of ZY9507 were very high and Sr and Zn contents of ZY9505 and ZY9506 were similar, Sr and Zn contents of ZY9508 were higher than the formers and the contents of Cu and As were also obviously higher. Conclusions: Based on the above results: the samples of Z |
ISSN: | 0253-3219 |