Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2375
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Cotte, M.; European Synchrotron Radiation Facility. | en |
dc.contributor.authorall | Susini, J.; European Synchrotron Radiation Facility. | en |
dc.contributor.authorall | Métrich, N.; Laboratoire Pierre Su¨e, CEA-CNRS | en |
dc.contributor.authorall | Moscato, A.; Universita` di Pisa. | en |
dc.contributor.authorall | Gratziu, C.; Universita` di Pisa. | en |
dc.contributor.authorall | Bertagnini, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Pagano, M.; Soprintendenza per i Beni Archeologici del Molise. | en |
dc.date.accessioned | 2007-08-27T08:10:16Z | en |
dc.date.available | 2007-08-27T08:10:16Z | en |
dc.date.issued | 2006 | en |
dc.identifier.uri | http://hdl.handle.net/2122/2375 | en |
dc.description.abstract | Red Pompeian paintings, very famous for their deep intensity, are currently suffering from darkening. The origins of this darkening degradation are not clearly identified yet and remain a major issue for curators. In the specific case of cinnabar (HgS)-based red pigment, a photoinduced conversion into black metacinnabar is usually suspected. This work is focused on the blackening of red cinnabar paintings coated on a sparry calcite mortar. Different samples exhibiting different levels of degradation were selected upon visual observations and analyzed by synchrotron-based microanalytical techniques. Atomic and molecular compositions of the different debased regions revealed two possible degradation mechanisms. On one hand, micro X-ray fluorescence elemental maps show peculiar distributions of chlorine and sulfur. On the other hand, X-ray absorption spectroscopy performed at both Cl and S K-edges confirms the presence of characteristic degradation products: (i) Hg- Cl compounds (e.g., corderoite, calomel, and terlinguaite), which may result from the reaction with exogenous NaCl, in gray areas; (ii) gypsum, produced by the calcite sulfation, in black coatings. Metacinnabar is never detected. Finally, a cross section was analyzed to map the in-depth alteration gradient. Reduced and oxidized sulfur distributions reveal that the sulfated black coating consists of a 5-ím-thick layer covering intact cinnabar. | en |
dc.language.iso | English | en |
dc.publisher.name | American Chemical Society | en |
dc.relation.ispartof | Analytical Chemistry | en |
dc.relation.ispartofseries | 21/78 (2006) | en |
dc.subject | Microspectroscopy Analysis | en |
dc.title | Blackening of Pompeian Cinnabar paintings: X-ray micro-spectroscopy analysis | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 7484-7492 | en |
dc.subject.INGV | 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous | en |
dc.identifier.doi | 10.1021/ac0612224 | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Cotte, M. | en |
dc.contributor.author | Susini, J. | en |
dc.contributor.author | Métrich, N. | en |
dc.contributor.author | Moscato, A. | en |
dc.contributor.author | Gratziu, C. | en |
dc.contributor.author | Bertagnini, A. | en |
dc.contributor.author | Pagano, M. | en |
dc.contributor.department | European Synchrotron Radiation Facility. | en |
dc.contributor.department | European Synchrotron Radiation Facility. | en |
dc.contributor.department | Laboratoire Pierre Su¨e, CEA-CNRS | en |
dc.contributor.department | Universita` di Pisa. | en |
dc.contributor.department | Universita` di Pisa. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Soprintendenza per i Beni Archeologici del Molise. | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | European Synchrotron Radiation Facility. | - |
crisitem.author.dept | European Synchrotron Radiation Facility. | - |
crisitem.author.dept | Laboratoire Pierre Sue, CNRS-CEA, CE-Saclay, 91191 Gif sur Yvette, France | - |
crisitem.author.dept | Universita` di Pisa. | - |
crisitem.author.dept | Universita` di Pisa. | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Soprintendenza per i Beni Archeologici del Molise. | - |
crisitem.author.orcid | 0000-0003-4075-2242 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 05. General | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
WEB OF SCIENCETM
Citations
110
checked on Feb 10, 2021
Page view(s)
157
checked on Apr 24, 2024
Download(s)
28
checked on Apr 24, 2024