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 December 21st, 2011%
Volcano Type: Cinder cones
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 1780 m 5,840 feet
Latitude: 17.68°N * 17°41’0″N
Longitude: 8.50°E 8°30’0″E
The Todra volcanic field covers a broad area of about 1050 sq km in the Tuareg shield in the southern Aïr region of Niger. Activity began with the eruption of about 30 trachytic and phonolitic volcanoes through Precambrian basement rocks. This was followed by the formation of about 130 basaltic cones that typically produced a valley filling lava flow. A series of NW-SE-trending faults control volcano locations. The date of the latest eruption of the Todra volcanic field is not known, but may have been as recent as a few centuries ago.
Originally posted 2010-11-12 03:35:31.
By ExploreNow Editor, on December 13th, 2011%
Volcano Type: Volcanic field
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: Unknown
Latitude: 23.00°N * 23°0’0″N
Longitude: 10.83°E 10°50’0″E
The In Ezzane volcanic field lies in SE Algeria, near the border with Niger. The alkaline In Ezzane volcanic field, part of which extends into Niger, covers about 500 sq km at the eastern end of Hoggar (Ahaggar) volcanic province and was assigned a Recent age (Liegeois et al., 2005). This poorly known and isolated volcanic field erupted through basement rocks at the western end of the Saharan meta-craton.
Originally posted 2010-11-12 04:42:05.
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