Chemical Compositions of Obsidian in Japan -An Approach to Archaeological Provenience Studies

日本黑曜石的化学成分——考古出处研究方法

• 批准号: 01470033
• 负责人: OSAWA Masumi
• 金额: $ 2.82万
• 依托单位: Tokyo Gakugei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01470033/
• 关键词: geological source obsidian; obsidian artifacts; identification of provenience; concentrations of trace elements; instrumental neutron activation analysis; concentrations of major elements; energy dispersive X-ray fluorescence analysis; multivariate

This report presents the research results of the characterization of geological source obsidian in Japan on the basis of the chemical compositions (concentrations of major and trace elements) as a scientific approach to the archaeological studies in the identification of provenience.Instrumental neutron activation analysis (INAA) was used to determine 15 trace elements in 370 samples of obsidian from geological outcrops of 50 localities in Hokkaido, Honshu, Okinawa, and northern Kyushu.The principal constituent elements were determined by the energy dispersive X-ray fluorescence (EDXRF) analysis, which is entirely nondestructive method. Thus, the samples of obsidian from geological sources and artifacts were mounted on the sample stage without any processing.On the basis of the multivariate analyses, (factor analysis, cluster analysis) using concentrations of 12 trace elements as variables 370 samples of geological source obsidian have been classified into the geological outcrops of localities.The concentrations of 12 trace elements measured in obsidian artifacts by INAA can be used as "fingerprint" to match the artifacts to geological sources of obsidian. Thus, the cluster analysis of each of obsidian artifacts from various sites of Prehistoric age (the Preceramic period and the Jomon period) in Japan together with the geological source obsidian of 50 localities was carried out. The sourcing of the obsidian artifacts has been achieved successfully.

This report presents the research results of the characterization of geological source obsidian in Japan on the basis of the chemical compositions (concentrations of major and trace elements) as a scientific approach to the archaeological studies in the identification of provenience.Instrumental neutron activation analysis (INAA) was used to determine 15 trace elements in 370 samples of obsidian from geological outcrops of 50 localities in Hokkaido, Honshu, Okinawa,主要成分元素是通过能量分散X射线荧光（EDXRF）分析确定的，这完全是无损的方法。因此，从地质来源和人工制品中的黑曜石样品安装在样本阶段，而无需进行任何处理。在多变量分析的基础上，使用12个痕量元素作为变量的浓度的多变量分析（因子分析，聚类，聚类分析）370个地质源的样本，该样本是地质源的样本，该样本是通过在当地的地理位置上分类的。 “指纹”将文物与黑曜石的地质来源相匹配。因此，对日本各种史前时代的各个地点（前越过时期和乔蒙时期）的每一个黑曜石伪影的聚类分析以及50个地区的地质源黑曜石进行了。黑曜石工件的采购已成功实现。

项目成果

Shuji Ninomiya et al.: "Chemical compositions of obsidian in Japan ーAn approach to archaeolofical provenience studies" Journal of Archaeological Science.

Shuji Ninomiya 等人：“日本黑曜石的化学成分 - 考古起源研究的方法”《考古科学杂志》。

Shuji Ninomiya et al.: "Chemical compositions of obsidian -An approach to archaeological provenience studies" Journal of Archaeological Science.

Shuji Ninomiya 等人：“黑曜石的化学成分 - 考古学来源研究的方法”《考古科学杂志》。