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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Tombel Graben
Three lake-filled maars dot the Tombel Graben between Mount Cameroon (lower left) and lava flows from Manengouba volcano (top). The Mungo River runs from N to S across the right side of this Landsat image. The largest maar, Barombi Mbo, lies just west of the brown-colored area of the town of Kumba, and Barombi Koto is at the lower left. A large number of scoria cones, including the young cone of Le Djungo (Mont Pelé) dot the 10-20 km wide graben. NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
Volcano Number:
224011
Volcano Name:
Tombel Graben
Country:
Cameroon
Volcano Type:
Volcanic field
Elevation:
500m
Tectonic Setting:
Intraplate / Continental crust (> 25 km)
Pop. within 5km:
234623
Pop. within 10km:
234623
Pop. within 30km:
434892
Pop. within 100km:
4087423
Latitude:
4.758
Longitude:
9.717
Details
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Young cinder cones and maars are abundant in the low-lying Tombel Graben (also referred to as the Tombel Plain) between Mount Cameroon and Mount Manengouba (within 4°58'N, 9°51'E and 4°33'N, 9°35'E). Mount Koupe, composed of Tertiary syenite, dominates the area. Activity began with the emission of large lava flows over Precambrian metamorphic rocks and Cretaceous sandstones, and concluded with explosive activity forming numerous cinder cones. The 800 km2 volcanic field, which erupted basanitic, basaltic, and trachybasaltic rocks, contains three large lake-filled maars, including Barombi Mbo, a compound maar near the town of Kumba. Legends record an eruption of Le Djungo (also known as Mont Pelé) that destroyed a village; though a small craterless cone is marked along a fault line on a map in Nkono (2009, after Nkouathio et al., 2002) it's unclear what cone is being described by the story, because no noticeably younger or unvegetated cones are apparent in satellite imagery. Two samples taken from the Njombe area in the farthest SW part of the field were K-Ar dated as possible Holocene (Nkouathio et al., 2008), though the error was too large to be definitive.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No erruption data found for this volcano.
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.
Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.
Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
Sorry. No data exist for this volcano in the UNAVCO database.
Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
Sorry. No IRIS data found for this volcano.