dc.contributor.author | Pérez Díez, Silvia | |
dc.contributor.author | Pitarch Martí, África | |
dc.contributor.author | Giakoumaki, Anastasia | |
dc.contributor.author | Prieto Taboada, Nagore | |
dc.contributor.author | Fernández Ortiz de Vallejuelo, Silvia | |
dc.contributor.author | Martellone, Alberta | |
dc.contributor.author | De Nigris, Bruno | |
dc.contributor.author | Osanna, Massimo | |
dc.contributor.author | Madariaga Mota, Juan Manuel | |
dc.contributor.author | Maguregui Hernando, Maite | |
dc.date.accessioned | 2021-12-13T15:15:19Z | |
dc.date.available | 2021-12-13T15:15:19Z | |
dc.date.issued | 2021-11-24 | |
dc.identifier.citation | Analytical Chemistry 93(48) : 15870–15877 (2021) | es_ES |
dc.identifier.issn | 0003-2700 | |
dc.identifier.uri | http://hdl.handle.net/10810/54442 | |
dc.description.abstract | It is widely known that the vivid hue of red cinnabar can darken or turn black. Many authors have studied this transformation, but only a few in the context of the archeological site of Pompeii. In this work, the co-occurrence of different degradation patterns associated with Pompeian cinnabar-containing fresco paintings (alone or in combination with red/yellow ocher pigments) exposed to different types of environments (pre- and post-79 AD atmosphere) is reported. Results obtained from the in situ and laboratory multianalytical methodology revealed the existence of diverse transformation products in the Pompeian cinnabar, consistent with the impact of the environment. The effect of hydrogen sulfide and sulfur dioxide emitted during the 79 AD eruption on the cinnabar transformation was also evaluated by comparing the experimental evidence found on paintings exposed and not exposed to the post-79 AD atmosphere. Our results highlight that not all the darkened areas on the Pompeian cinnabar paintings are related to the transformation of the pigment itself, as clear evidence of darkening associated with the presence of manganese and iron oxide formation (rock varnish) on fragments buried before the 79 AD eruption has also been found. | es_ES |
dc.description.sponsorship | The research leading to these results has received funding from “la Caixa” Foundation (Silvia Pérez-Diez, ID 100010434, Fellowship code LCF/BQ/ES18/11670017). A.P.M. is a Serra Húnter fellow. A.P.M’s research was supported by a Beatriu de Pinós postdoctoral grant (2017 BP-A 00046) of the Government of Catalonia’s Secretariat for Universities & Research of the Ministry of Economy and Knowledge. This work has been supported by the project MADyLIN (BIA2017-87063-P) funded by the Spanish Agency for Research AEI (MINECO-FEDER/UE). The authors thank for the funding provided by University of the Basque Country through the Institutionally Sponsored Open Access. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | ACS | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/BIA2017-87063-P | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | cinnabar, Pompeii, Raman spectroscopy, calomel, manganese oxide | es_ES |
dc.subject | cinnabar | es_ES |
dc.subject | Pompeii | es_ES |
dc.subject | Raman spectroscopy | es_ES |
dc.subject | calomel | es_ES |
dc.subject | manganese oxide | es_ES |
dc.title | When Red Turns Black: Influence of the 79 AD Volcanic Eruption and Burial Environment on the Blackening/Darkening of Pompeian Cinnabar | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2021 The Authors. Published by American Chemical Society cc-by | es_ES |
dc.relation.publisherversion | https://pubs.acs.org/doi/10.1021/acs.analchem.1c02420 | es_ES |
dc.identifier.doi | 10.1021/acs.analchem.1c02420 | |
dc.departamentoes | Química analítica | es_ES |
dc.departamentoeu | Kimika analitikoa | es_ES |