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Um Adawi Granites (en Inglés)
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Reseña del libro "Um Adawi Granites (en Inglés)"
High Quality Content by WIKIPEDIA articles! The Um Adawi Granites are igneous rocks exposed in the southeastern part of the Sinai Peninsula and they exhibit field relations, petrographic and chemical characteristics similar to the island arc older granitoids of the Arabian-Nubian Shield. They have a batholitic dimension and occur as composite plutons intruding the metasediments and the metavolcanics, while the younger granites intrude them. Petrographically, the rocks are homogeneous, light to dark grey and medium- to coarse-grained. They comprise quartz monzodiorite, tonalite and granodiorite. Plagioclase (An21-32), quartz, k-feldspar, hornblende and biotite represent the essential minerals. Accessory minerals are apatite and Fe-Ti oxides. Whole rock and mineral chemistry explained that the Um Adawi older granites are calc-alkaline with metaluminous signature.
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