Techinantitla building complex, in the Amanalco neighborhood of the ancient city of Teotihuacan, is famous for the iconography and quality of the mural paintings found in this site. A significant part of this heritage has been lost due to looting. In recent years, an interdisciplinary research project was developed to study the limited patrimony that was left. As part of this study, we first employed geophysical techniques to reconstruct the architectural pattern of the compound’s remaining walls, where other paintings may still be found. Then, we applied a non-invasive methodology to characterize a large set of fragments recovered in the 1980s and to gain information on their pigments and manufacturing techniques. This methodology included False Color Infrared Imaging, X-ray Fluorescence and Fiber-Optics Reflectance Spectroscopy, and led to the identification of hematite, calcite, malachite, azurite and an unidentified blue pigment. The results were compared with a previous study performed on a set of Techinantitla mural paintings looted in the 1960s. A broader comparison with contemporary mural paintings from other Teotihuacan complexes shows good agreement in the materials used. These results may suggest a standardization in the making of Teotihuacan mural painting during the Xolapan period (350 to 550 AD).

中文翻译：

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Techinantitla建筑群中的特奥蒂瓦坎壁画研究的分析方法

位于特奥蒂瓦坎古城阿马纳尔科（Amanalco）街区的Techinantitla建筑群因在该地点发现的壁画的肖像画和画质而闻名。由于抢劫，该遗产的很大一部分已丢失。近年来，开发了一个跨学科的研究项目来研究剩下的有限遗产。作为这项研究的一部分，我们首先采用了地球物理技术来重建该化合物其余墙壁的建筑图案，在该墙壁上仍然可以找到其他绘画。然后，我们应用了一种非侵入性方法来表征1980年代回收的大量碎片，并获得有关其颜料和制造技术的信息。这种方法包括伪彩色红外成像，X射线荧光和光纤反射光谱，导致鉴定出赤铁矿，方解石，孔雀石，石青石和未鉴定的蓝色颜料。将该结果与先前对一组在1960年代被抢劫的Techinantitla壁画进行的研究进行了比较。与其他特奥蒂瓦坎建筑群的当代壁画作了更广泛的比较，表明所使用的材料具有很好的一致性。这些结果可能暗示了在Xolapan时期（公元350至550年）制作特奥蒂瓦坎壁画的标准化方法。