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Jabal as Sawda Volcanic Province, Jufra District, Libyai
Regional Level Types
Jabal as Sawda Volcanic ProvinceVolcanic Province
Jufra DistrictDistrict
LibyaCountry

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Latitude & Longitude:
27° North , 17° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~328km
GRN:
N19E11
Type:
Volcanic Province
Age:
9.8 to 15.4 Ma
Geologic Time:
Miocene
Dating method:
K-Ar
Reference for age:
Busrewil, M. T., & Esson, J. (1991). Chronology and composition of the igneous rocks of Jabal as Sawda. In Symposium on the geology of Libya (pp. 2599-2603).
Mindat Locality ID:
407204
Long-form identifier:
mindat:1:2:407204:4
GUID (UUID V4):
0


Volcanic province extends over 6000 km², but originally was probably in excess of 10000 km² (Busrewil & Esson 1991) and consists essentially of a plateau of basaltic lavas up to 100 m thick, within which are the remnants of 7 small shield volcanoes 2-11 km in diameter and numerous volcanic cones of 1 km or less. Intrusions are represented by plugs within the volcanoes and dikes and sills cutting the lavas.

Approx coords range: 28º00' - 29º10'N; 14º30' - 16º05'E.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


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

Detailed Mineral List:

ⓘ 'Alkali Feldspar'
ⓘ 'Fayalite-Forsterite Series'
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ 'Zeolite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘ'Zeolite Group'9.G0.
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Fayalite-Forsterite Series'-

List of minerals for each chemical element

OOxygen
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Fayalite-Forsterite Series
NaSodium
Naⓘ NephelineNa3K(Al4Si4O16)
MgMagnesium
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ NephelineNa3K(Al4Si4O16)
SiSilicon
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ Fayalite-Forsterite Series
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
FeIron
Feⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate

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

Ade-Hall, J. M., Reynolds, P. H., Dagley, P., Mussett, A. E., & Hubbard, T. P. (1975). Geophysical studies of North African Cenozoic volcanic areas: II. Jebel Soda, Libya. Canadian Journal of Earth Sciences, 12(8), 1257-1263. doi.org/10.1139/e75-117
Woller, F., & Fediuk, F. (1980). Volcanic Rocks of Jabal as Sawda; Geology of Libya, 3. Academic Press, London, 1081-1093.
Busrewil, M. T., & Esson, J. (1991). Chronology and composition of the igneous rocks of Jabal as Sawda. In Symposium on the geology of Libya (pp. 2599-2603).
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.144
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