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Marzoli, Andrea; Renne, Paul R.; Piccirillo, Enzo M.; Francesca, Castorina; Bellieni, Giuliano; Melfi, Adolpho J.; Nyobe, Jean B.; N'ni, Jean (May 1999), "Silicic magmas from the continental
Cameroon Volcanic Line (Oku, Bambouto and Ngaoundere): 40Ar-39Ar dates, petrology, Sr-Nd-O isotopes and their
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of 7.2, 7.9 and 9.8 Ma (million years). The volcano was formed in four overlapping phases. First, many basaltic lava flows erupted throughout the region, creating the generally smooth relief. Next, voluminous
181:. It is the only stratovolcano in the field. Nganha rises about 1,000 metres (3,300 ft) above the surrounding plateau to a height of 1,927 metres (6,322 ft) at DoĂŻtaĂŻa Mounts.
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flows then erupted. They have steep margins and are separated by deep and narrow valleys. Later there was basaltic activity at the summit.
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were deposited. Most of these have been deeply eroded except where covered by later lava flows. Thick, radially distributed trachyte and
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is 33 kilometres (21 mi) thick below the plateau. Although considered by many geologists to be part of the
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Tchabal Nganha is a large composite volcano located within the
Ngaoundere volcanic field in the east of the
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496:
419:"Tchabal Nganha volcano in Adamawa (Cameroon): petrology of a continental alkaline lava seriesu"
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of the
Ngaoundere Plateau is younger (11 to 9 million years old) than silicic volcanism in the
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363:"Les volcans d'Afrique de l'ouest - 5. les champs volcaniques du NE de la CVL."
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Nono, A.; DĂ©ruelle, B.; Demaiffe, D.; Kambo, R. (1994),
221:. It is partly covered by volcanic formations from the
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423:Journal of Volcanology and Geothermal Research
192:and tilted to the south. The plateau has a
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184:The Adamawa plateau is an asymmetrical
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248:than in the western part of the line.
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461:, Geological Society of London,
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263:rock samples from Nganha have
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455:Woolley, Alan Robert (2001),
361:Duyck, Bernard (2012-02-03),
443:10.1016/0377-0273(94)90066-3
381:petrogenetic significance",
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80:1,000 metres (3,300 ft)
70:1,927 m (6,322 ft)
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383:Mineralogy and Petrology
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502:Miocene stratovolcanoes
108:7.353687°N 14.014683°E
492:Volcanoes of Cameroon
403:10.1007/s004100050502
225:to Recent ages. The
50:Location in Cameroon
435:1994JVGR...60..147N
395:1999CoMP..135..133M
345:Marzoli et al. 1999
335:, pp. 148–149.
113:7.353687; 14.014683
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163:Ngaoundere Plateau
60:Highest point
468:978-1-86239-083-6
242:Western Highlands
188:bounded by N70°E
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389:(2–3): 133–150,
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333:Nono et al. 1994
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179:Adamawa Plateau
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167:Adamawa Region
155:Tchabal Nganha
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367:Earth of Fire
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231:Cameroon line
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169:of Cameroon.
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159:stratovolcano
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147:Cameroon line
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135:Stratovolcano
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130:Mountain type
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292:Woolley 2001
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142:Volcanic arc
369:(in French)
197:metamorphic
194:Precambrian
111: /
86:Coordinates
486:Categories
474:2016-01-31
448:2016-01-31
373:2016-01-31
304:Duyck 2012
99:14°00′53″E
76:Prominence
411:129256139
274:phonolite
265:K–Ar ages
252:Formation
238:volcanism
219:Paleozoic
217:from the
96:7°21′13″N
66:Elevation
270:breccias
261:trachyte
223:Cenozoic
204:intruded
202:that is
200:basement
173:Location
431:Bibcode
391:Bibcode
354:Sources
246:basalts
235:silicic
215:plutons
212:syenite
208:granite
161:on the
124:Geology
465:
409:
257:Basalt
233:, the
190:faults
407:S2CID
280:Notes
227:crust
186:horst
157:is a
463:ISBN
259:and
210:and
439:doi
399:doi
387:135
206:by
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437:,
427:60
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311:^
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