REQUIMTE and Department of Conservation and Restoration, Faculty of Sciences and Technology (FCT), Nova University of Lisbon (UNL), 2829-516 Caparica, Portugal.
Microsc Res Tech. 2013 Jul;76(7):733-43. doi: 10.1002/jemt.22224. Epub 2013 May 7.
The research results presented in this paper are part of a larger study on the materials and techniques used in polychrome altarpieces of gilded woodcarving decoration ("talha dourada") in Portugal. The paper focuses on a narrative Portuguese Altarpiece from Miranda do Douro, considered one of the masterpieces of "talha dourada" among all the retables of the Iberian Peninsula in XVII(th) and XVIII(th) centuries. Although on the Portuguese territory, the altarpiece was made by artists from the Royal Spanish school of Valladolid, under a mannerist style. Thus the study opens a window on the artists' circulation between Spain and Portugal and influences of the Spanish schools in Baroque epoch on the Portuguese "talha". During its history this altarpiece underwent several transformations and extensive conservation treatments in 1989. On this occasion more than 50 samples were collected and analyzed using an interdisciplinary multi-technique methodology. 27 of these samples are chosen for this study in order to investigate the chromatic palette, the materials and techniques used in the polychromy of the retable. A novel protocol of investigation using different conventional and unconventional analytical techniques (OM + fluorescent staining tests on cross-sections, Raman microscopy, XRD, XRF, X-ray micro-CT, SEM-EDX, MALDI-TOF-MS and LC-MS/MS) was established within an innovative research project (http://sites.fct.unl.pt/gilt-teller/) and applied on these samples. This protocol is necessary to confirm the results obtained in the 1989 campaign and to have further insight into the gilding and polychrome decoration materials and techniques and the additional information reported in the historical documents. The material and technical history of this important altarpiece will be thus re-documented from a scientific perspective, meant to confirm and bring new information on the decorative technique used in the creation of this complex Portuguese monument.
本文呈现的研究结果是对葡萄牙多彩金漆木雕装饰（“金饰细工”）的材料和技术进行的更广泛研究的一部分。本文重点介绍了一件来自 Miranda do Douro 的叙事性葡萄牙圣坛，这件作品被认为是 17 世纪至 18 世纪伊比利亚半岛所有祭坛中“金饰细工”的杰作之一。尽管这件圣坛位于葡萄牙境内，但它是由来自西班牙巴利亚多利德皇家学院的艺术家按照一种风格主义风格制作的。因此，这项研究为我们了解艺术家在西班牙和葡萄牙之间的流动以及西班牙巴洛克时期的学校对葡萄牙“金饰细工”的影响提供了一个窗口。在其历史上，这件圣坛经历了多次转变，并于 1989 年进行了广泛的保护处理。在此期间，收集了 50 多个样本，并使用跨学科的多技术方法进行了分析。本研究选择了其中的 27 个样本，以调查该圣坛的彩绘颜料、复色装饰的材料和技术。本研究建立了一种使用不同常规和非常规分析技术（显微镜+横截面荧光染色测试、拉曼显微镜、XRD、XRF、X 射线微 CT、SEM-EDX、MALDI-TOF-MS 和 LC-MS/MS）的全新调查方案，并将其应用于这些样本。该方案对于确认 1989 年研究活动的结果并深入了解镀金和多彩装饰材料和技术以及历史文献中报告的其他信息是必要的。从科学的角度来看，这件重要的圣坛的材料和技术历史将被重新记录，旨在确认并提供有关创作这件复杂的葡萄牙纪念碑所使用的装饰技术的新信息。
