Chaumbwi Vent, Ntcheu, Central Region, Malawi i
Regional Level Types
Chaumbwi Vent Volcanic Vent
Ntcheu District
Central Region Region
Malawi Country

Regional Level Types
Chaumbwi Vent	Volcanic Vent
Ntcheu	District
Central Region	Region
Malawi	Country

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Latitude & Longitude (WGS84):

15° 3' 0'' South , 34° 47' 59'' East

Latitude & Longitude (decimal):

G#: kv2druhx6

Type:

Köppen climate type:

Cwa : Monsoon-influenced humid subtropical climate

Nearest Settlements:

Place	Population	Distance
Balaka	18,902 (2011)	18.5km
Ntcheu	10,445 (2011)	31.0km
Liwonde	22,469 (2013)	45.7km

Mindat Locality ID:

407385

Long-form identifier:

mindat:1:2:407385:0

GUID (UUID V4):

Small agglomerate vent the full size of which is obscured by derbis, but it is probably several hundreds of meters long.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

7 valid minerals.

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

ⓘ Gneiss

Detailed Mineral List:

ⓘ Aegirine

Formula: NaFe³⁺Si₂O₆

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Aegirine-augite

Formula: (Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ 'Barkevikite'

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ 'Fayalite-Forsterite Series'

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Fluorite

Formula: CaF₂

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Magnetite var. Titanium-bearing Magnetite

Formula: Fe²⁺(Fe³⁺,Ti)₂O₄

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

ⓘ 'Rhombohedral Carbonate'

Formula: (Ca/Mg/Fe/Mn etc)CO₃

References:

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	var. Titanium-bearing Magnetite	4.BB.05	Fe²⁺(Fe³⁺,Ti)₂O₄
Group 9 - Silicates
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Aegirine-augite	9.DA.20	(Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆
ⓘ	Aegirine	9.DA.25	NaFe³⁺Si₂O₆
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Barkevikite'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Rhombohedral Carbonate'	-	(Ca/Mg/Fe/Mn etc)CO₃

List of minerals for each chemical element

C	Carbon
C	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃
O	Oxygen
O	ⓘ Aegirine	NaFe³⁺Si₂O₆
O	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Aegirine	NaFe³⁺Si₂O₆
Na	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Fayalite-Forsterite Series
Mg	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃
Al	Aluminium
Al	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Si	Silicon
Si	ⓘ Aegirine	NaFe³⁺Si₂O₆
Si	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Pyroxene Group	ADSi₂O₆
K	Potassium
K	ⓘ Orthoclase	K(AlSi₃O₈)
Ca	Calcium
Ca	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃
Ti	Titanium
Ti	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
Mn	Manganese
Mn	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃
Fe	Iron
Fe	ⓘ Aegirine	NaFe³⁺Si₂O₆
Fe	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
Fe	ⓘ Fayalite-Forsterite Series
Fe	ⓘ Rhombohedral Carbonate	(Ca/Mg/Fe/Mn etc)CO₃

Other Regions, Features and Areas containing this locality

AfricaContinent

East African Rift System (EARS)Zone (Tectonic)

African Plate

Malawi ComplexOrogenic Belt

Somali PlateTectonic Plate

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References

Garson, M.S. 1965. The geology of the area west of Lake Malombe, Fort Johnston District. Records, Geological Survey of Malawi, 3, 35-48.

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.164

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Mineral List

Rock Types Recorded

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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

Chaumbwi Vent, Ntcheu, Central Region, Malawi i
Regional Level Types
Chaumbwi Vent Volcanic Vent
Ntcheu District
Central Region Region
Malawi Country