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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
31#
發(fā)表于 2025-3-26 22:43:23 | 只看該作者
32#
發(fā)表于 2025-3-27 03:53:04 | 只看該作者
Arusha National Park (Mount Meru)xtends over 35?km onto the lower slopes of Kilimanjaro. The caldera collapse and Momella event can be compared with the catastrophic eruption of Mount St. Helens in 1980.The avalanche at Meru was far larger and carved out a distinctive undulating terrane that contains the Momella Lakes, important ha
33#
發(fā)表于 2025-3-27 07:08:48 | 只看該作者
Amboseli, Chyulu Hills and Tsavo West National Parksarren Holocene-age features, including the Shaitani and Chaimu flows and cones with an estimated age of 1865–1866, can be distinguished from the vegetated Pleistocene lava fields.The Shaitani event includes a lava tube, which can be entered from areas of surface collapse. An intriguing feature of Ts
34#
發(fā)表于 2025-3-27 11:30:48 | 只看該作者
35#
發(fā)表于 2025-3-27 14:14:51 | 只看該作者
Lake Naivasha and the Mount Longonot and Hell’s Gate National Parks years ago. The Njorowa Gorge, a narrow slot rimmed in by near-vertical sidewalls, exposes a section offinely bedded ashes which accumulated from explosive eruptions of rhyolitic magmas. The gorge formed when the much larger, palaeo-Lake Naivasha drained southwards duringthe Late Pleistocene–Early H
36#
發(fā)表于 2025-3-27 18:02:16 | 只看該作者
37#
發(fā)表于 2025-3-28 00:05:43 | 只看該作者
Geological Framework The oldest of the basement complexes is the Archaean-age Lake Victoria Terrane, part of the extensive Central African craton which dominates the area between the Albertine and Gregory Rifts. The Lake Victoria Terrane includes greenstones, altered sedimentary and basaltic rocks, as well as large plu
38#
發(fā)表于 2025-3-28 05:15:07 | 只看該作者
The East African Rift System 30?Ma) and has persisted intermittently through the Miocene, Pliocene and Pleistocene into the Holocene. Rifts are invariably associated with intense volcanism and East Africa includes one of Earth’s largest volcanic provinces. The occurrence of active cones is consistent with a long-lived mantle p
39#
發(fā)表于 2025-3-28 08:08:34 | 只看該作者
Basement Complexes and Regional Plateauss in this region occur in the Lake Victoria Terrane, a segment of the Central African craton with an age of 2.810–2.560?Ga. The two main components of this terrane are greenstones, a group of metamorphosed, mostly basaltic rocks, and granite-gneiss. The greenstones occur in relatively small, arcuate
40#
發(fā)表于 2025-3-28 14:18:57 | 只看該作者
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