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Bu Craa (Bou Craa), Laâyoune Province, Laâyoune-Sakia El Hamra Region, Moroccoi
Regional Level Types
Bu Craa (Bou Craa)- not defined -
Laâyoune ProvinceProvince
Laâyoune-Sakia El Hamra RegionRegion
MoroccoCountry

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Key
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Latitude & Longitude (WGS84): 26° 19' 6'' North , 12° 51' 7'' West
Latitude & Longitude (decimal): 26.31861,-12.85222
GeoHash:G#: eswvex1m1
Köppen climate type:BWh : Hot deserts climate


The open pit phosphate mines operated by Phosboucraa (Fosbucraa).
Located near the small village of Bu Craa (Bou Craa), in the northern part of the Western Sahara, approx. 100 km SW of the second major town of Smara.

The deposits (Oued Eddahab Phosphate deposits) are of sedimentary origin and of Upper Cretaceous-Palaeocene and Eocene age. They consist of two phosphate-bearing layers. Commonly, the quartz-bearing geodes (see below) are found in the upper layer or above.

Note: the snow-white quartz geodes offered under the name "Smara" on European shows or eBay are actually coming from the phosphate mines of Bu Craa.

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert
Northwest Africa MeteoritesMeteorite Fall Location

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

Quartz
Formula: SiO2
Reference: Various collections

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals arranged by Dana 8th Edition classification

Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Tertiary
2.588 - 66 Ma



ID: 3306497

Age: Cenozoic (2.588 - 66 Ma)

Lithology: Sedimentary

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Neogene
2.588 - 23.03 Ma



ID: 3185124
Cenozoic sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Eocene - Paleocene
33.9 - 66 Ma



ID: 3137277
Palaeocene undifferentiated

Age: Paleogene (33.9 - 66 Ma)

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

External Links



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