stripes
Occurrence number:
155-00-021
Country:
Sudan
Location:
Longitude: 36.27, Latitude: 20.03
Carbonatite:
No
This is a large, poorly exposed gabbro-granite complex of about 15x10 km. In the northeast numerous gabbroic and granitic arcuate sheets are intercalated. The gabbros are strongly uralitized but with remnant ophitic clinopyroxene. The granites comprise microcline perthite, biotite, hornblende and, within the marginal granite, arfvedsonite.
Age:
An eight point whole rock Rb-Sr isochron on granite gave an age of 676±13 Ma while gabbros gave 758±26 Ma (Vail et al., 1984).
References:
VAIL, J.R., ALMOND, D.C., HUGHES, D.J., KLEMENIC, P.M., POOLE, S., NOUR, S.E.M. and EMBLETON, J.C.B. 1984. Geology of the Wadi Oko-Khor Hayet area, Red Sea Hills, Sudan. Bulletin of the Geology and Mineral Resources Department, Republic of Sudan, 34: 1-20.
Location: