Micro-Raman and X-ray fluorescence spectroscopy data fusion for the classification of ochre pigments

Ramos, Pablo Manuel; Ruisánchez, Itziar; Andrikopoulos, Konstantinos S.

doi:10.1016/j.talanta.2007.12.030

Cited by 49 publications

(40 citation statements)

References 9 publications

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“…a Light-gray cells contain index of quality for 2D images created from the outer product; non-colored cells list the index of quality for outer sum based 2D images and light-blue cells include index of quality for the previous 2D estimators. 10 3.5. Building and using the identity library As a final issue, in order to progress the selectivity towards specificity, the combined use of the three bidimensional attributes of each compound (the beforehand [16] and the new ones developed) has been considered for its identifying.…”

Section: Peer-to-peer Assessment Of Image Qualitymentioning

confidence: 99%

“…The synergy of Raman and FT-NIR microscopies to enable a more complete visualization of any solid dosage pharmaceutical form has been demonstrated [9]. Likewise, in cultural heritage issues, data-fusion strategies based on the outputs of a Raman/X-ray fluorescence combined instrument, has been investigated for dealing with the classification of ochre pigments [10]. Furthermore, complementary spectra from Raman, IR (infrared) and NMR sources have been assembled for giving a "fused" dataset to an increased understanding and control of an industrial process [11].…”

Section: Introductionmentioning

confidence: 99%

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Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

Moros

Laserna

2015

Talanta

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Section: Peer-to-peer Assessment Of Image Qualitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

Moros

Laserna

2015

Talanta

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“…and other minor components (calcite, gypsum, etc.). Also, the presence of magnetite (Fe 3 O 4 ) may also contribute to the material's shade [17]. Reports dating from Roman times indicate that a variety of different shades of yellow and red could be obtained by simply heating of goethite (α-FeOOH).…”

Section: 4mentioning

confidence: 99%

A Preliminary Diagnostic Study of the Chromatic Alterations of the Wall Paintings of the Festival Hall of Thutmosis III, Karnak Temples Complex, Upper Egypt

Mahmoud¹,

Kantiranis²,

Ali³

et al. 2011

Restoration of Buildings and Monuments

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The festival hall of Thutmosis III (c.1504-1450 BC) is one of the minor temples found in the complex of Karnak temples at Luxor (about 670 km south of Cairo). The chromatic alterations of the wall paintings at the festival hall were evaluated through the analysis of weathered pigment samples and several damaged layers covering the painted surfaces. The analytical techniques utilised in this study were optical microscopy (OM), scanning electron microscopy (SEM) equipped with an energy dispersive X-ray detector (EDS), X-ray powder diffraction analysis (XRPD), micro-Raman and Fourier transform infrared spectroscopies (µ-Raman and FT-IR). The obtained results showed that the chromatic alterations of the studied wall paintings are resulting mainly from the impact of the environmental conditions of the region, the penetration of the groundwater beneath the walls of the temple and the degradation of the materials used in old restorations of the temple. This research confirms the importance of a plan for environmental improvements to be drawn up.

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“…Techniques such as transmission electron microscopy with electron diffraction (Pomiès et al, 1999;Chalmin et al, 2004), scanning electron microscopy combined with energy dispersion spectroscopy (Darchuk et al, 2010), Xray diffraction (Nel et al, 2010), Raman and infrared spectroscopies (Darchuk et al, 2010;Bikiaris et al, 2000;Ramos et al, 2008;Smith et al, 1999) have been used to determine specific iron mineral phases. These methods can also provide information on other minerals associated with these iron oxides, as well as related to the mineralogical composition of the geological source (Nel et al, 2010), or artificially added as extender by human during pigment preparation to enhance specific properties (Clottes et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

“…Various elemental analysis methods were also used to characterise rich iron oxide pigments and artefacts. Suitable techniques including X-ray fluorescence (XRF) (Ramos et al, 2008;PopelkaFilcoff et al, 2007), neutron activation analysis (Popelka-Filcoff et al, 2007), inductively coupled plasma mass spectrometry (ICP-MS) (Green and Watling, 2007) or particle-induced X-ray emission spectroscopy (PIXE) (Erlandson et al, 1999;Beck et al, 2011). Some of these studies suggested that the elemental composition of ochre and haematite can provide characteristic chemical proxies of particular geological sources, and can be used for provenance establishment purpose to differentiate geological locations one another.…”

Section: Introductionmentioning

confidence: 99%

Prehistoric pigment characterisation of the Abri Pataud rock-shelter (Dordogne, France)

Lebon

Beck

Grégoire

et al. 2014

Open J Archaeometry

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Iron oxide pigments found in archaeological context constitute an important source of information for the understanding of cultural and subsistence activities of ancient human cultures. In order to complete archaeological contextual information, many analytical methods have been applied to characterise pigments and to provide further information on this material (e.g. supplies, selections, mechanical or physical transformations of raw material, use and application processes). Several studies have demonstrated that the elemental composition of iron oxide pigments can be used to discriminate between several geological provenances. In this study, non-destructive micro-particle induced Xray emission analysis was applied in order to distinguish different kinds of reddish pigments from the prehistoric site of Abri Pataud, more especially from the Layer 2 attributed to Final Gravettian period (22,000 BP). By using an external beam, this technique required no sampling, and enabled us to perform localised analyses directly on raw material, on ochre residues applied on artefacts or on fragments of the wall of this rock-shelter. The results obtained by this technique demonstrate that the pigments covering the decorated fragments of the rock-shelter wall, found during the excavation of the Layer 2, have elemental compositions similar to the composition of a raw pigment found in the same layer. These results suggest that the shelter was decorated during the Final Gravettian period and thus provide new insights for the understanding of the archaeological context of this occupation layer.

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Micro-Raman and X-ray fluorescence spectroscopy data fusion for the classification of ochre pigments

Cited by 49 publications

References 9 publications

Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

A Preliminary Diagnostic Study of the Chromatic Alterations of the Wall Paintings of the Festival Hall of Thutmosis III, Karnak Temples Complex, Upper Egypt

Prehistoric pigment characterisation of the Abri Pataud rock-shelter (Dordogne, France)

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