Abstract Cross-dating of bricks and mortars from historical building, through thermal (TL) and optically stimulated (OSL) luminescence have achieved good accuracy and precision. However this approach is, in many cases, not exhaustive especially for buildings with different construction phases closely temporally spaced to each other. The uncertainties of experimental data added to the reuse of old bricks and/or the presence of mortars applied on restorations represent the main limits to obtain the complete chronology. In the case of the Convento de S. Francisco (Coimbra, Portugal), the dating results were crossed with the stratigraphic study of the building, mineralogical characterization by XRD and colorimetric data of the mortar samples. Thanks to luminescence ages, mineralogical composition and color specification, two phases of construction were identified: the first from the 17th century and the first half of the 18th century and the second from the second half of the 18th century to the first half of the 19th century. These results were confirmed by mineralogical characterization and colorimetric measurements of mortars that identify two different types of materials in aggregate/binder ratio terms and superficial optical characteristics.

中文翻译：

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历史建筑约会：圣弗朗西斯科修道院（葡萄牙科英布拉）的多学科研究

摘要 通过热（TL）和光激发（OSL）发光对来自历史建筑的砖块和砂浆进行交叉测年已经取得了良好的准确度和精确度。然而，在许多情况下，这种方法并不详尽，尤其是对于时间间隔很近的不同施工阶段的建筑物。实验数据的不确定性增加了旧砖的再利用和/或在修复体上使用的砂浆的存在，代表了获得完整年表的主要限制。在 Convento de S. Francisco（葡萄牙科英布拉）的案例中，测年结果与建筑物的地层研究、XRD 的矿物学特征和砂浆样品的比色数据交叉。由于发光年龄、矿物成分和颜色规格，确定了两个建设阶段：第一个阶段是 17 世纪和 18 世纪上半叶，第二个阶段是 18 世纪下半叶到 19 世纪上半叶。这些结果通过砂浆的矿物学表征和比色测量得到证实，砂浆在骨料/粘合剂比率和表面光学特性方面识别了两种不同类型的材料。