Structure et caractérisation des matériaux utilisés dans la construction d'une mosa??que romaine de la cité de Volubilis (Maroc) |
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| Authors: | Abdelilah Dekayir Marc Amouric Juan Olives Claude Parron Abdelilah Nadiri Abdelkader Chergui MAbdeljalil El Hajraoui |
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| Institution: | 1. GeoCube Group, département de géologie, BP 4010, Bni M''hamed, Meknès, Maroc;2. CRMC2/CNRS, campus universitaire de Luminy, case 913, 163, av. de Luminy, 13288 Marseille cedex 09, France;3. Laboratoire de géosciences de l''environnement, Cerege, Europôle méditerranéen de l''Arbois, BP 80, 13545 Aix-en-Provence cedex 04, France;4. UFR–SMI, département de chimie, BP 4010, Bni M''hamed, Meknès, Maroc;5. Direction du patrimoine culturel, ministère des Affaires culturelles, Rabat, Maroc |
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| Abstract: | In Volubilis, Roman mosaics are very beautiful and reveal, from the bottom to the surface, three layers: (i) ‘hedgehog’ layer, (ii) coarse grain mortar layer (rudus + nucleus) and (iii) tesselatum. Mineralogical analysis of coarse grain mortar sampled in Flavius Germanus mosaic shows that it consisted of quartz and calcite, with some feldspar and probably mica and dolomite. Fine-grained mortar in tesselatum is made from a mixture of calcite and quartz only. Limestone tesserae (white, pink and brown) show petrographic facies that change from micritic to oolithic limestone. Conversely, black and brick red tesserae are respectively made of marble, red sandstone and from fire clay. Other colours as yellow, blue, green and grey are obtained from artificial glass with different chemical compositions. To cite this article: A. Dekayir et al., C. R. Geoscience 336 (2004). |
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| Keywords: | Volubilis mosa??que romaine altération tesselle mortier Maroc Volubilis Roman mosaic weathering tesserae mortar Morocco |
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