By ExploreNow Editor, on February 20th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 2411 m 7,910 feet
Latitude: 5.03°N 5°2’0″N
Longitude: 9.83°E 9°50’0″E
The well-preserved Manengouba stratovolcano rises to 2411 m across the Tombel Graben from Mount Cameroon and has two concentric summit calderas, Elengoum and Eboga. The older 6-km-wide Elengoum caldera is poorly defined and probably formed between about 800,000 and 600,000 years ago. Large lava flows traveled down the NE flanks from a breach on the eastern caldera rim. The younger 3-km-wide Eboga caldera is thought to have formed about 250,000 years ago. Younger volcanism of unknown age has constructed a SW-NE line of crater lakes and cinder cones across the caldera floor of the dominantly basaltic-to-trachytic volcano.
 Panoramic view of Mount Manengouba (Markus Betz)  Mount Manengouba (Markus Betz) Originally posted 2010-10-21 04:52:09.
By ExploreNow Editor, on February 14th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Holocene?
Last Known Eruption: Unknown
Summit Elevation: 3011 m 9,878 feet
Latitude: 6.25°N * 6°15’0″N
Longitude: 10.50°E 10°30’0″E
Numerous maars and basaltic cinder cones lie on or near the deeply dissected rhyolitic and trachytic Mount Oku massif along the Cameroon volcanic line. The Mount Oku stratovolcano is cut by a large caldera. The Oku volcanic field is noted for two crater lakes, Lake Nyos to the north and Lake Monoun to the south, that recently produced catastrophic carbon-dioxide gas release events. The August 15, 1984, gas release at Lake Monoun was attributed to overturn of stratified lake water, triggered by an earthquake and landslide. The Lake Nyos event on August 21, 1986, caused at least 1700 fatalities. The emission of around 1 cu km of magmatic carbon dioxide has been attributed either to overturn of stratified lake waters as a result of a non-volcanic process, or to phreatic explosions or injection of hot gas into the lake.
 Oku Lake Click Here For The Rest Of Oku Volcanic Field, Cameroon
Originally posted 2010-09-09 12:09:41.
By ExploreNow Editor, on October 24th, 2011%
Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 2000
Summit Elevation: 4095 m 13,435 feet
Latitude: 4.203°N 4°12’12″N
Longitude: 9.170°E 9°10’12″E
Mount Cameroon, one of Africa’s largest volcanoes, rises to 4095 m above the coast of west Cameroon. The massive steep-sided volcano of dominantly basaltic-to-trachybasaltic composition forms a volcanic horst constructed above a basement of Precambrian metamorphic rocks covered with Cretaceous to Quaternary sediments. More than 100 small cinder cones, often fissure-controlled parallel to the long axis of the massive 1400 cu km volcano, occur on the flanks and surrounding lowlands. A large satellitic peak, Etinde (also known as Little Cameroon), is located on the southern flank near the coast. Historical activity, the most frequent of west African volcanoes, was first observed in the 5th century BC by the Carthaginian navigator Hannon. During historical time, moderate explosive and effusive eruptions have occurred from both summit and flank vents. A 1922 SW-flank eruption produced a lava flow that reached the Atlantic coast, and a lava flow from a 1999 south-flank eruption stopped only 200 m from the sea.
Click Here For The Rest Of Mt. Cameroon, Cameroon
Originally posted 2010-08-23 04:16:34.
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