Annals of the Geological Survey of Egypt, Volumes 5-6Egyptian Geological Survey and Mining Authority., 1975 - Geology |
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Contents
Gerhard Rohlfs life and work | 17 |
The African map during the 18th and 19th centuries | 25 |
Geographical exploration of the African Sahara during the 19th century | 33 |
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Common terms and phrases
Abu Dabbab Abu Rusheid Abu Tartur Africa albite amazonite apogranite apogranite massif average contents Bahariya Bahariya Oasis basalt bauxite bauxite deposits biotite blocks bodies Cairo cassiterite Central Eastern Desert cinnabar columbite complex composition concentration country rocks Desert of Egypt diorite dolerite dykes Eastern Desert Egypt Egyptian endocontact expedition exploration faults fine-grained fluorite formation gabbro Gattarian granites Gebel geochemical Geological Survey gneiss gold grains granites greisen grey granites gypsum Igla intrusions Kharga km² laterite LDSG Libyan Desert limestone lower magmatism massif medium-grained metasomatic metasomatically altered microcline Miocene muscovite Naggat northern Nubia Nuweibi Oasis occur panning samples pegmatoid placer porphyries porphyroblastic present prospecting Proterozoic pyrite quartz quartz veins rare metal mineralization Red Sea Sabet Sahara sandstone scarp schists sediments serpentinites silicification southern structure Survey of Egypt Ta₂O tantalum tectonic thickness third phase topaz Tsogoev upper facies veinlets Wadi Western zircon zones