A multi-analytical approach for the characterization of wall painting materials on contemporary buildings

2017 ◽  
Vol 173 ◽  
pp. 39-45 ◽  
Author(s):  
Donata Magrini ◽  
Susanna Bracci ◽  
Emma Cantisani ◽  
Claudia Conti ◽  
Antonio Rava ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Wall Painting ◽  
Painting Materials

scholarly journals Characterisation of Materials and Techniques in First Archaeological Findings of Nasca Wall Paintings

2020 ◽  
Author(s):  
Nathalie Boucherie ◽  
Witold Nowik ◽  
Nathalie Pingaud
Keyword(s):  
Paint Layer ◽  
Wall Painting ◽  
Phase Iii ◽  
Wall Paintings ◽  
Intermediate Period ◽  
Electron Microscopies ◽  
Painting Materials ◽  
Yellow Ochre ◽  
Materials Used

Abstract The pre-Colombian wall paintings in Peru were already known from north and central coast sites, but little information exists on the southern coast corresponding to the Nasca region. The recent excavations on Cahuachi site supplied fragments of plaster with paint layers found near Great Pyramide, corresponding to phases III and IV of the construction of the site, and dating back to the Early Intermediate Period (from 200 BC to 350 AD). A series of fragments from three locations from these two respective periods were transferred directly from the excavation to the laboratory and analysed. A panel of observation and analysis methods was applied in order to describe the stratigraphy and materials used for these paintings, with special attention to the paint layer. The stratigraphy was observed by optical and electron microscopies and X-ray fluorescence, Raman and infrared spectroscopies were employed for elemental and molecular characterization of the plaster and paintings. The obtained results show the large use of iron oxides and copper based pigments, as well calcium sulfate, siliceous and clay materials and graphite. Although the most of pigments could be provided by local deposits, the provenience of graphite remains undetermined. The differences of painting materials between phases III and IV are related to the palette of colours and pigments. The colors for phase III seem limited to the red and yellow ochre pigments, unidentified black and gypsum white. During phase IV, additional pigments were identified such as: paratacamite, malachite and chrysocolla for greens, hematite for purple, graphite black and siliceous white, which replaced gypsum white. The paintings were sometimes applied in several layers separated or not by white coating layer. The painting materials and techniques identified on Cahuachi site, and especially the differences between the phases observed, constitute a new insight in the knowledge of wall painting tradition in Southern Peru.

Design and characterization of a modified WDM ring network – An analytical approach

Optik ◽  
2012 ◽  
Vol 123 (12) ◽  
pp. 1103-1107 ◽  
Author(s):  
Virendra S. Shekhawat ◽  
D.K. Tyagi ◽  
V.K. Chaubey
Keyword(s):  
Analytical Approach ◽  
Ring Network

scholarly journals X-Ray Fluorescence Analysis of a Gold Ibex and other Artifacts from Akrotiri

2019 ◽  
Vol 11 ◽  
Author(s):  
A. G. Karydas ◽  
T. Pantazis ◽  
C. Doumas ◽  
A. Vlachopoulos ◽  
P. Nomikos ◽  
...  
Keyword(s):  
Bulk Composition ◽  
Fluorescence Analysis ◽  
Wall Painting ◽  
Inorganic Elements ◽  
X Ray ◽  
Wide Range ◽  
Soldering Technology ◽  
Excavation Area

In-situ X-ray fluorescence analysis (XRF) of ancient artifacts from the excavation area was performed using a novel X-ray instrumentation, composed of a portable silicon PIN thermoelectrically cooled X-ray detector, a miniature X-ray source, and portable data acquisition devices. The main objective of the analyses in Akrotiri was to explore the potential of the technique to provide answers to a wide range of archaeometric questions regarding the bulk composition of metal alloys, especially of gold, the characterization of corrosion products in bronze artifacts, identification of inorganic elements which are fingerprints of the minerals used in wall-painting pigments, and of the painting materials and techniques used for the decoration of clay vase surfaces. Among the analysed artifacts are a unique gold ibex, a bronze dagger and blade, various pigments from the wall paintings of room 3 in Xeste 3, decoration pigments from rosettes of faience, a bichrome jug, and other clay vases. The results of the in-situ XRF survey, primarily those of the bulk composition and soldering technology of the gold ibex, are discussed and compared with literature.

Characterization of pigments and ligands in a wall painting fragment from Liternum archaeological park (Italy)

2012 ◽  
Vol 35 (21) ◽  
pp. 2986-2993 ◽  
Author(s):  
Gaetano Corso ◽  
Monica Gelzo ◽  
Angela Chambery ◽  
Valeria Severino ◽  
Antimo Di Maro ◽  
...  
Keyword(s):  
Wall Painting
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