20 x 70 km graben extends between Mount Cameroon and Mount Manengouba and across it are distributed more than 70 tuff cones, generally less than 100 m high but reaching 150 m. Mount Koupe, Littoral Region, Cameroon lies in the centre of the plain.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ 'Fayalite-Forsterite Series'

1 valid mineral.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Basalt

ⓘ Basanite

ⓘ Tephrite

ⓘ 'Tholeiitic basalt'

Detailed Mineral List:

ⓘ 'Fayalite-Forsterite Series'

References:

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

ⓘ 'Glass'

References:

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
Unclassified
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Glass'	-

List of minerals for each chemical element

O	Oxygen
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Pyroxene Group	ADSi₂O₆
Na	Sodium
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Fayalite-Forsterite Series
Al	Aluminium
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Pyroxene Group	ADSi₂O₆
Ca	Calcium
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Fe	Iron
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

AfricaContinent

African Plate

Central African OrogenOrogenic Belt

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Tchoua, F. (1971). Le volcanisme strombolien de la plaine de Tombel (Cameroun). In Annales de la Faculté des sciences du Cameroun (pp. 53-78).

Woolley, A. R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa - Alkaline Rocks and Carbonatites of the World. The Geological Society of London.p.36

Le Maitre, R. W. - Ed. (2002) Igneous Rocks - A Classification and Glossary of Terms (2nd ed.) Cambridge University Press. doi:10.1017/cbo9780511535581

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Tombel Plain, Southwest Region, CamerooniRegional Level TypesTombel PlainValley Southwest RegionRegion CameroonCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Tombel Plain, Southwest Region, Cameroon i
Regional Level Types
Tombel Plain Valley
Southwest Region Region
Cameroon Country