The iron sand around Mt. Aburayama (Fukuoka, Japan), where various ancient iron-making sites are located, was investigated to establish a research infrastructure for identification of the raw material used in the archeological iron artifacts excavated from this area. Iron sand samples were magnetically collected from the rivers flowing in this area and nearby outcrop soil. The samples were qualitatively analyzed using Mössbauer spectroscopy and x-ray diffractometry to identify the minerals present inside them. Additionally, the elemental concentrations in these samples were determined using x-ray fluorescence spectrometry. The iron sand samples were characterized by comparing them with those from other Japanese regions using scatter diagrams developed based on the elemental concentrations in the samples. The scatter diagrams showed clear distinctions between the iron sand samples from the Mt. Aburayama area and other Japanese regions. These diagrams may enable us to clarify the relationship between the iron sand and archeological iron artifacts found in the vicinity of Mt. Aburayama.

中文翻译：

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对从油山（日本福冈）山麓收集的铁砂进行表征，以估计九州北部考古铁器的起源

对油山（日本福冈）周围的铁砂进行了调查，这里是各种古代炼铁遗址的所在地，旨在建立一个研究基础设施，用于鉴定从该地区出土的考古铁器所使用的原材料。铁砂样品是从该地区流经的河流和附近露头土壤中磁力采集的。使用穆斯堡尔光谱和 X 射线衍射法对样品进行定性分析，以识别其中存在的矿物质。此外，这些样品中的元素浓度是使用 X 射线荧光光谱法测定的。通过使用根据样品中元素浓度绘制的散点图将铁砂样品与来自日本其他地区的样品进行比较来表征铁砂样品。散点图显示了油山地区和日本其他地区的铁砂样品之间的明显区别。这些图表可以使我们澄清铁砂与在油山附近发现的考古铁器之间的关系。