Abstract Ban Chiang () is an extensively studied archeological site in Northeast Thailand, Udon Thani Province, which became a UNESCO world heritage in 1992. Depending on their production period ceramic artefacts show characteristic patterns at the surface which may be interpreted as iconographic motifs for the site. Two ceramic samples, excavated in 2003, from different periods were re-investigated, previously studied by Tanthanuch W., Pattanasiriwisawa W., Somphon W., Srilomsak S. Synchrotron studies of Ban Chiang ancient pottery. Suranaree J. Sci Technol. 2011, 18, 15–28 who focussed on thermal firing and redox-conditions. Shards selected for this study were sample 5412-S6E15 dated from Bronze Age (ca. 1000–300 BC) with yellow-brown, paint-free surface and a younger sample 8027 from Iron Age (ca. 300 BC–200 AD) with red painted design carrying pictorial patterns typical for the Ban Chiang ceramics. The surface material and colour of both shards was studied in detail using optical reflectance, FTIR spectroscopy and X-ray powder diffraction. Thin sections were used to determine the thickness of the red paint and the elemental composition of the surface using an electron microprobe. Chemical composition of sample 5412-S6E15 consists as oxides of elements mainly of SiO2 and Al2O3 (representing ca. 59 and 20 wt. %) and that of the red colour of the youngest sample 8027 consists mainly of SiO2, Al2O3 and Fe2O3 (representing ca. 52, 13 and 13 wt. %), the average composition adjacent to the red painted area has ca. 72 wt. % SiO2, ca. 10 wt. % Al2O3 and only 2 wt. % Fe2O3. X-ray powder diffraction, FTIR spectroscopy and optical reflectance measurements confirm hematite in the mineralogical composition of the red pigment of shard 8027.

中文翻译：

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来自泰国班清的手工艺品：带有赤铁矿红色几何图案的陶器

摘要 Ban Chiang () 是泰国东北部乌隆他尼省的一个被广泛研究的考古遗址，于 1992 年成为联合国教科文组织世界遗产。根据其生产时期，陶瓷工艺品在表面显示出特征图案，可能被解释为图像图案地点。对 2003 年出土的两个不同时期的陶瓷样品进行了重新调查，之前由 Tanthanuch W.、Pattanasiriwisawa W.、Somphon W.、Srilomsak S. Synchrotron 对 Ban Chiang 古陶器的研究进行了研究。Suranaree J. 科学技术。2011, 18, 15-28 谁专注于热燃烧和氧化还原条件。本研究选择的碎片是青铜时代（约公元前 1000-300 年）的样本 5412-S6E15，表面呈黄褐色，无油漆，而较年轻的样本 8027 来自铁器时代（约公元前 1000-300 年）。公元前 300 年至公元 200 年）红色设计，带有典型的班清陶瓷图案。使用光学反射率、FTIR 光谱和 X 射线粉末衍射详细研究了两种碎片的表面材料和颜色。使用电子微探针，使用薄片来确定红色涂料的厚度和表面的元素组成。样品 5412-S6E15 的化学成分主要由 SiO2 和 Al2O3 元素的氧化物组成（代表约 59 和 20 重量％），最年轻的样品 8027 的红色主要由 SiO2、Al2O3 和 Fe2O3（代表约. . 52、13 和 13 重量％），与红色涂漆区域相邻的平均成分具有大约 . 72 重量 % SiO2，约 10 重量 % Al2O3 和仅 2 wt. % Fe2O3。X射线粉末衍射，