Petrographic analyses of the substrate of a wall painting from a church at Sa’adon shed light on the under researched subject of the technique of execution of Byzantine wall paintings. The results suggest that the flawed execution of the substrates might be responsible for the low rate of preservation of murals from this period. Differences in the composition of the construction mortar and plaster show that the Byzantine craftspeople modified the properties of the renders accordingly to their function, a practice often attested in the Roman period but rarely demonstrated through archaeometric studies of Byzantine renders.

中文翻译：

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内盖夫 Sa'adon 西南教堂壁画基材的岩相学分析

对 Sa'adon 教堂壁画基材的岩相学分析揭示了拜占庭壁画制作技术这一研究不足的主题。结果表明，基板的执行有缺陷可能是这一时期壁画保存率低的原因。建筑砂浆和石膏成分的差异表明，拜占庭工匠根据其功能修改了渲染的属性，这种做法在罗马时期经常得到证实，但很少通过拜占庭渲染的考古学研究得到证明。