Analysis of 19th century ceramic fragments excavated from Pirenópolis (Goiás, Brazil) using FT-IR, Raman, XRF and SEM.

Autor: Freitas RP; Laboratório de Instrumentação e Simulação Computacional. LISCOMP/IFRJ-CPAR, 26600-000 Paracambi, Brazil. Electronic address: renato.freitas@ifrj.edu.br., Coelho FA; Museu Nacional (MN-UFRJ) Quinta da Boa vista, São Cristóvão, RJ 20940-040, Brazil., Felix VS; Laboratório de Instrumentação e Simulação Computacional. LISCOMP/IFRJ-CPAR, 26600-000 Paracambi, Brazil., Pereira MO; Centro Federal de Educação Tecnológica Celso Suckow da Fonseca - Uned-NG, 26041-271 Nova Iguaçu, Brazil., de Souza MAT; Museu Nacional (MN-UFRJ) Quinta da Boa vista, São Cristóvão, RJ 20940-040, Brazil., Anjos MJ; Instituto de Física Armando Dias Tavares (IFADT-UERJ), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, RJ 20550-013, Brazil.
Jazyk: angličtina
Zdroj: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2018 Mar 15; Vol. 193, pp. 432-439. Date of Electronic Publication: 2017 Dec 18.
DOI: 10.1016/j.saa.2017.12.047
Abstrakt: This study used Raman, FT-IR and XRF spectroscopy and SEM to analyze ceramic fragments dating from the 19th century, excavated from an old farm in the municipality of Pirenópolis, Goiás, Brazil. The results show that the samples were produced in an open oven at a firing temperature below 500°C, using raw materials including kaolinite, hematite, magnetite, quartz, microcline, albite, anhydrite, calcite, illite, orthoclase and MnO 2 . Although the analyses showed similarities in the manufacturing process and the presence of many minerals was common in all samples, multivariate statistical methods (PCA) allowed a more detailed assessment of similarities and differences in the mineral composition of the samples. The results of the PCA showed that the samples excavated in one of the slave quarters (senzalas) group with those excavated at the farmhouse, where the landowner lived, which indicates a paternalistic attitude towards captives, including the sharing of ceramic materials of everyday use.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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