Amic resins secreted humic acids and tannin-derived supplies (n. two, three, four, acids are
Amic resins secreted humic acids and tannin-derived materials (n. two, three, four, acids are also markers ofby plants of your Umbelliferae family members [32]. Hydroxyaromatic 5, 9, 11, acids are also markers of humic acids and tannin-derived components (n. two, 3, four, five, 9, colour 17, 20) [33,34]. The latter are particularly exciting due to their brown11, 17, which 20) [33,34]. The latter are especially fascinating due to their brown colour which tends to black when combined with iron [35]. These compounds could also contribute to tends to black when combined with iron [35]. These compounds could also contribute towards the dark colour from the superficial layer in the sculpture. the dark colour in the superficial layer with the sculpture. To investigate deep the brown layer, a petrographic study from the from the grains To investigate inin deep the brown layer, a petrographic study mineralmineral grains includedin the gum was carried outoutverify its compatibility with an Egyptian territoryterritory integrated within the gum was carried to to verify its compatibility with an Egyptian origin. In specific, a fine fine sand formed by Tenidap Inhibitor clasts than one hundred microns is present (Fig- present origin. In specific, a sand formed by clasts smaller sized smaller sized than one hundred microns is (Figure 10). ure ten).Figure ten. OM (a) and SEM-BS (b) pictures of surface layer that that is certainly composed organic mateFigure ten. OM (a) and SEM-BS (b) pictures in the the surface layer is composed by an by an organic material rial in which various minerals are dispersed; simplified geological map of Egypt (c). in which various minerals are dispersed; simplified geological map of Egypt (c).A lot of mineral particles have been observed in this layer consisting mostly mainly of quartz, A lot of mineral particles were observed within this layer consisting of quartz, calcite and white mica. In accessory quantities you will discover also biotite, pyroxene, iron oxides, calcite and white mica. In accessory quantities you can find also biotite, pyroxene, iron oxides, apatite and sulphides. Respect towards the provenance study, among the several minerals apatite and sulphides. Respect towards the provenance study, among the several minerals located, the most interesting was potassium white mica. It continuously shows a phengitic identified, essentially the most exciting it shows an enrichment in Si and constantly in Al, comcomposition, in the sense that was potassium white mica. It a reduction shows a phengitic composition, within the sense that of shows an enrichment in Si along with a reduction in Al, compared pared for the theoretical formula it muscovite [36]. In the literature, phengite is normally for the theoretical formula rocks that formed under circumstances of high stress, inside the linked with metamorphic of muscovite [36]. Inside the literature, phengite is normally connected with metamorphic rocksallowsformed below circumstances ofwith Egyptian in the subduction zones [37]. This for that reason that to confirm the compatibility high stress,subduction zones [37]. This thus makes it possible for to confirm the compatibility with EgyptianCoatings 2021, 11,15 ofterritory and to constrain the region of VBIT-4 medchemexpress origin of the raw material applied by the Ancient Egyptians, as component of your covering layer of your statue in query. By observing a simplified geological map of Egypt, the territory can be divided into 3 key geological units (see Figure 10c). Inside the central-northern sector of Egypt, sedimentary rocks of carbonate origin from the Cenozoic age mostly crop out [38]. The presence of abundant.
