stripes
Occurrence number:
155-00-018
Country:
Sudan
Location:
Longitude: 36.9, Latitude: 20.5
Carbonatite:
No
A circular ring-complex 7-8 km in diameter, Melangweib intrudes Precambrian basement granite, granite gneiss and amphibolite. Earlier olivine gabbro and troctolite are surrounded by a ring of biotite granite which, in turn, is surrounded by rings of biotite and hornblende granite, the latter being the older. Minor albite-riebeckite granite intrudes the biotite granite.
References:
KURON, J.L. 1978. The geology of some igneous ring complexes, north-west of Port Sudan, Red Sea Province, Sudan. M.Phil. thesis, Portsmouth Polytechnic. 160 pp. (unpublished).
Location: