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Titlebook: Geology of National Parks of Central/Southern Kenya and Northern Tanzania; Geotourism of the Gr Roger N. Scoon Book 2018 Springer Internati

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樓主: 萌芽的心
21#
發(fā)表于 2025-3-25 04:15:44 | 只看該作者
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發(fā)表于 2025-3-25 10:27:42 | 只看該作者
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發(fā)表于 2025-3-25 13:52:19 | 只看該作者
Basement Complexes and Regional Plateausther with plutons of granite. The Lake Victoria Terrane contains economic mineral deposits, particularly of gold. The Mara gold fields overlap into the Serengeti National Park and were subjected to a ‘gold rush’ in the 1930s. There are several operating mines near Lake Victoria. The Mozambique Belt
24#
發(fā)表于 2025-3-25 19:39:49 | 只看該作者
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發(fā)表于 2025-3-25 22:09:28 | 只看該作者
Late Pleistocene Ice Ages and the Holocene Epochon in northern Africa and the Middle East so severely that it is known as the First Dark Age. During the hotter and more humid periods of the Early Holocene, giant palaeo-lakes developed in the Gregory Rift Valley. Conversely, many lakes dried up during the intervening arid phases. Since 3,700?years
26#
發(fā)表于 2025-3-26 02:31:49 | 只看該作者
Serengeti National Parkongo Group, the latter occurring as linear ridges in central parts of the park. The age of the Ikorongo is uncertain and they may straddle the boundary between the Neoproterozoic and Cambrian. The youngest rocks occur as a thin cover of volcanic ash; they are restricted to the eastern plains. Three
27#
發(fā)表于 2025-3-26 04:20:44 | 只看該作者
Mount Elgon National Park(s)em (EARS). Details of the eruptive history are sparse although the cone is probably dominated by tephra and agglomerate with only very minor lava flows. This is typical of a volcanowith an extremely high explosive index. The presence of hot springs is indicative of minor geothermal activity. Possibl
28#
發(fā)表于 2025-3-26 11:17:23 | 只看該作者
Aberdare and Mount Kenya National Parkst Kenya Volcanic Suite, a thick succession of Pliocene age basalt and phonolite lavas erupted from a central conduit. Blocking of the conduit at approximately 2.6?Ma by an intrusive plug of syenite marked the end of the main phase of activity. The syenite plug is associated with most of the central
29#
發(fā)表于 2025-3-26 12:56:54 | 只看該作者
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發(fā)表于 2025-3-26 17:09:05 | 只看該作者
Oldupai Gorge and Laetolihas an age of 2.015–1.803?Ma. The age of these two, partially intact hominin skulls has been determinded as 1.848?Ma (OH-5) and 1.848–1.832 (OH-7). Oldupai Gorge has also yielded fossils of . (1.2–0.70?Ma) and the coexistence of different species of hominin is a unique feature of the locality. React
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