Raman microprobe analysis of stucco samples from the buildings of Maya Classic Copan

Goodall, Rosemary A.; Hall, Jay; Edwards, Howell G. M.; Sharer, Robert J.; Viel, René; Fredericks, Peter M.

doi:10.1016/j.jas.2006.07.008

Cited by 33 publications

(8 citation statements)

References 21 publications

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“…The complementary technique of micro-Raman spectroscopy (Edwards et al, 1999;Goodall et al, 2007;Ospitali et al, 2006) with a high spatial resolution allows spectra to be recorded on individual particles of 1-2 mm. Raman spectroscopy is particularly useful for the identification of iron oxide minerals, which are often the main constituents of ancient red and yellow paints, and not detected using FT-IR imaging because of the restricted spectral range of FPA detectors.…”

Section: The Fern Cave Paintsmentioning

confidence: 99%

Prehistoric hand stencils at Fern Cave, North Queensland (Australia): environmental and chronological implications of Raman spectroscopy and FT-IR imaging results

Goodall

David

Kershaw

et al. 2009

Journal of Archaeological Science

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Section: The Fern Cave Paintsmentioning

confidence: 99%

Prehistoric hand stencils at Fern Cave, North Queensland (Australia): environmental and chronological implications of Raman spectroscopy and FT-IR imaging results

Goodall

David

Kershaw

et al. 2009

Journal of Archaeological Science

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“…The Raman spectra recorded of the red coloured area (Fig. 2) represent bands at 229, 297, 416, 503 and 613 cm −1 are in the spectra of haematite (α-Fe 2 O 3 ), red ochre [11]. A light red tonality was produced by as a mixture of haematite, anhydrite and calcite.…”

Section: Raman Spectramentioning

confidence: 98%

Raman Microscopic Analysis of a Multi-Pigmented Surface from the Theban Tomb (TT277), Luxor, Egypt

Mahmoud

2013

Acta Phys. Pol. A

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In this study, the Raman microscopy technique was employed for identifying a multi-pigmented surface from the wall decorations of the Theban tomb (TT277), Luxor, Egypt. The Raman spectra were collected in the near infrared excitation line (785 nm Linefocus) of a diode laser source which enables mapping scan of specic areas in only few minutes. The microstructure and microanalysis of samples were performed by the aid of an environmental scanning electron microscopy coupled with an energy dispersive X-ray analysis system. The identied pigments were red ochre (haematite), yellow ochre (goethite) and carbon black (from a vegetable origin). Traces of anatase were found in the yellow coloured areas which can be a contaminant in natural iron oxide deposits. The ground layer was identied as anhydrite with minor amounts of calcium carbonates detected in some samples. The results showed the capability of the Raman microscopy for direct and fast identication of multi-pigmented surfaces in wall paintings and other decorative objects.

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“…Thanks to the microscopic unit attached to Raman instrument, spectra were recorded on individual grains in the paint layers. The Raman spectrum of the red pigment (Figure 6a) represents typical peaks of haematite (α-Fe 2 O 3 ) at 226, 298, 417 and 614 cm −1 [39,40]. Moreover, the strong band at 417 cm −1 indicates a well-crystallised haematite [41].…”

Section: Ftir-atr Spectroscopymentioning

confidence: 99%

Investigations by Raman microscopy, ESEM and FTIR-ATR of wall paintings from Qasr el-Ghuieta temple, Kharga Oasis, Egypt

Mahmoud

2014

Heritage Science

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In the present work, a multi-analytical approach was used to analyze samples collected from the wall paintings of Qasr el-Ghuieta temple, Kharga Oasis, Egypt. The temple is dating back to the 27th dynasty (525-404 BC) and was completed during the Ptolemaic period. The samples were analyzed by optical microscopy (OM), environmental scanning electron microscopy (ESEM) coupled with an energy dispersive X-ray analysis system (EDX), Raman microscopy and Fourier transform infrared-attenuated total reflectance spectroscopy (FTIR-ATR). The chromatic palette used in the temple was identified as Egyptian blue (cuprorivaite), red ochre (haematite), yellow ochre (goethite) and carbon black (from a vegetable origin). The green pigment was identified as green earth, however, a green tonality was also obtained through a mixture of Egyptian blue and yellow ochre, and in some samples, carbon black was also found. Several amounts of anatase and carbon black were found in the red and yellow ochre samples, respectively. The analysis showed that the preparation layer is almost made of pure gypsum, while the plaster layer based mainly on gypsum with variable amounts of quartz, calcite and clay minerals. The results showed that the painting materials and techniques used in the temple are almost the same of those used in the Egyptian temples with respect to the stratigraphy of paint layers, chromatic palette and the painting technique employed.

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Raman microprobe analysis of stucco samples from the buildings of Maya Classic Copan

Cited by 33 publications

References 21 publications

Prehistoric hand stencils at Fern Cave, North Queensland (Australia): environmental and chronological implications of Raman spectroscopy and FT-IR imaging results

Prehistoric hand stencils at Fern Cave, North Queensland (Australia): environmental and chronological implications of Raman spectroscopy and FT-IR imaging results

Raman Microscopic Analysis of a Multi-Pigmented Surface from the Theban Tomb (TT277), Luxor, Egypt

Investigations by Raman microscopy, ESEM and FTIR-ATR of wall paintings from Qasr el-Ghuieta temple, Kharga Oasis, Egypt

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