stripes
Occurrence number:
155-00-062
Country:
Sudan
Location:
Longitude: 24.9, Latitude: 13.68
Carbonatite:
No
This is a sub-volcanic igneous complex of basaltic rocks, syenite and gabbro. Chemical data indicate the presence of an alkaline series including basanite, tephrite, phonotephrite and trachyte (Franz et al., 1994). Further details have not been found.
Age:
K-Ar determinations on biotite from gabbro and syenite and plagioclase from trachybasalt ranged from 25.5 to36.2 Ma (Franz et al., 1994).
References:
FRANZ, G., PUDLO, D., URLACHER, G., HAUSMANN, U., BOVEN, A. and WEMMER, K. 1994. The Darfur Dome, western Sudan: the product of a subcontinental mantle plume. Geologische Rundschau, 83: 614-23.
Map:
Fig. 3_287 The relative positions of the Marra Mountains, Jebel Kussa, Mellit, the Tagabo Hills and the Meidob Hills (based on 1:2,000,000 scale geological map in Vail, 1978).
Location: