abracadabra
发表于 2025-3-23 11:32:30
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大炮
发表于 2025-3-23 16:31:04
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记忆
发表于 2025-3-23 19:44:59
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CORD
发表于 2025-3-23 22:54:18
Climatic Conditions: Present and Past, available evidence (geological, geomorphological, and biological) indicates that Egypt enjoyed wetter climates in the past than at present. All data indicates that from the end of the Eocene till the end of the Miocene periods, the climate was tropical wet, and from the Pliocene period, rainfall d
Pamphlet
发表于 2025-3-24 05:17:40
Remarkable Events in the Life of the River Nile,Miocene times, and since then it has passed through several stages. Some of these stages are significant in determining major changes in its life. Such changes were due to remarkable regional geologic events and can be described as “dramatic events.” These events are: the drying up of the Mediterran
牌带来
发表于 2025-3-24 10:21:26
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etiquette
发表于 2025-3-24 12:18:24
The Nile Delta,t equals its continental area. The delta is composed of four successive deltas developed by the successive Niles, which occupied the Nile Valley from Late Miocene. Its sediments are composed of sand and gravel overlain by a thin layer of alluvial clay (the Nile silt), with a total thickness of ~4000
友好
发表于 2025-3-24 18:53:43
The Sandstone Plateaus, SW Western Desert,lateau, while the western is named Abu Ras. They are composed of horizontal beds of Palaeozoic and Mesozoic sandstones, and are covered by a resistant caprock. Volcanic intrusions of different sizes are scattered on the surface of western central part of the Gilf Kebir Plateau, forming black to dark
立即
发表于 2025-3-24 20:50:48
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adjacent
发表于 2025-3-25 00:51:20
The Region of El-Galalah Plateaus NE the Eastern Desert, overlooking the Gulf of Suez, and occupying the NE corner of the Eastern Desert. Both Galalahs rise several hundred meters asl, reaching in some localities more than a thousand meters, while the floor of Wadi Araba rises only 120–250 m asl. The region is structurally dissected by faults of differen