The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation

The series of the Sibyls from the church of San Pedro Telmo is one of the most important groups of paintings of Argentine colonial art. Ten of the paintings were performed in the 18th century, while those corresponding to the Delphic and Tiburtine Sibyls were painted in 1864 during the first restora...

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Detalles Bibliográficos
Autores principales:	Careaga Quiroga, Valeria P., Maier, Marta Silvia
Publicado:	2014
Materias:	Colonial art HPLC Micro-Raman spectroscopy Pigments SEM-EDS
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03770486_v45_n11-12_p1046_Marte http://hdl.handle.net/20.500.12110/paper_03770486_v45_n11-12_p1046_Marte
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03770486_v45_n11-12_p1046_Marte
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spelling	paper:paper_03770486_v45_n11-12_p1046_Marte2023-06-08T15:38:59Z The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation Careaga Quiroga, Valeria P. Maier, Marta Silvia Colonial art HPLC Micro-Raman spectroscopy Pigments SEM-EDS The series of the Sibyls from the church of San Pedro Telmo is one of the most important groups of paintings of Argentine colonial art. Ten of the paintings were performed in the 18th century, while those corresponding to the Delphic and Tiburtine Sibyls were painted in 1864 during the first restoration of the series in Buenos Aires. There is a controversy regarding the origin of this remarkable group of paintings pointing to an Andean workshop or a Spanish source. In this study, Raman microscopy in combination with scanning electron microscope energy-dispersive X-ray spectrometer analysis and HPLC has successfully identified the materials employed in the manufacture of the paintings. The Raman analysis revealed the presence of a mixture of barium sulfate, lead white, and calcite in the preparation layers of the 19th century Sibyls in contrast to the clayish ground layer in the 18th century paintings. Traditional pigments such as vermilion, lead white, orpiment, indigo, ultramarine blue, and Prussian blue were readily identified by Raman microscopy. The presence of a madder lake in one of the 18th century Sibyls strongly suggests their Spanish origin in accordance with historical data. The identification of synthetic ultramarine blue in the Tiburtine painting is the first report of this blue pigment in Argentine colonial art. Copyright © 2014 John Wiley & Sons, Ltd. Fil:Careaga, V.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Maier, M.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03770486_v45_n11-12_p1046_Marte http://hdl.handle.net/20.500.12110/paper_03770486_v45_n11-12_p1046_Marte
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Colonial art HPLC Micro-Raman spectroscopy Pigments SEM-EDS
spellingShingle	Colonial art HPLC Micro-Raman spectroscopy Pigments SEM-EDS Careaga Quiroga, Valeria P. Maier, Marta Silvia The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
topic_facet	Colonial art HPLC Micro-Raman spectroscopy Pigments SEM-EDS
description	The series of the Sibyls from the church of San Pedro Telmo is one of the most important groups of paintings of Argentine colonial art. Ten of the paintings were performed in the 18th century, while those corresponding to the Delphic and Tiburtine Sibyls were painted in 1864 during the first restoration of the series in Buenos Aires. There is a controversy regarding the origin of this remarkable group of paintings pointing to an Andean workshop or a Spanish source. In this study, Raman microscopy in combination with scanning electron microscope energy-dispersive X-ray spectrometer analysis and HPLC has successfully identified the materials employed in the manufacture of the paintings. The Raman analysis revealed the presence of a mixture of barium sulfate, lead white, and calcite in the preparation layers of the 19th century Sibyls in contrast to the clayish ground layer in the 18th century paintings. Traditional pigments such as vermilion, lead white, orpiment, indigo, ultramarine blue, and Prussian blue were readily identified by Raman microscopy. The presence of a madder lake in one of the 18th century Sibyls strongly suggests their Spanish origin in accordance with historical data. The identification of synthetic ultramarine blue in the Tiburtine painting is the first report of this blue pigment in Argentine colonial art. Copyright © 2014 John Wiley & Sons, Ltd.
author	Careaga Quiroga, Valeria P. Maier, Marta Silvia
author_facet	Careaga Quiroga, Valeria P. Maier, Marta Silvia
author_sort	Careaga Quiroga, Valeria P.
title	The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
title_short	The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
title_full	The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
title_fullStr	The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
title_full_unstemmed	The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation
title_sort	sibyls from the church of san pedro telmo: a micro-raman spectroscopic investigation
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03770486_v45_n11-12_p1046_Marte http://hdl.handle.net/20.500.12110/paper_03770486_v45_n11-12_p1046_Marte
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The Sibyls from the church of San Pedro Telmo: A micro-Raman spectroscopic investigation

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