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Fig. 20 | Heritage Science

Fig. 20

From: Geo-environmental monitoring and 3D finite elements stability analysis for site investigation of underground monuments. Horemheb tomb (KV57), Luxor, Egypt

Fig. 20

C.N. Microscopic photograph shows the Esna shale sample is very fine to fine-grained (mainly sand size), well sorted that is cemented by minor amounts of iron oxides, clay minerals and carbonates. The sample is porous where pore spaces of different sizes are observed. The rock is composed mainly of quartz and feldspar grains cemented by minor amounts of iron oxides, clay minerals and calcite. Rare amounts of muscovite, biotite, hornblende and opaque minerals are observed in the sample. Quartz occurs as very fine to fine grains of subrounded to angular shape. Feldspars occur as fine grains that are observed in different parts of the sample. Opaque minerals occur as very fine to fine-grained crystals, scattered in the sample. Some parts of the sample are stained by traces of iron oxides

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