stripes
Occurrence number:
170-00-017
Country:
Uganda
Location:
Longitude: 34.47, Latitude: 2.42
Carbonatite:
No
A cylindrical plug of olivine melanephelinite of about 400x200 m forms the hill of Murulinga. Abundant phenocrysts of diopside and fewer of olivine (Fo82) are set in a groundmass of clinopyroxene, nepheline, olivine, magnetite, a pale mica, sodalite and pyrite. Hytonen (1959) gives analyses of a rock and pyroxene and olivine phenocrysts.
References:
HYTONEN, K. 1959. On the petrology and mineralogy of some alkaline volcanic rocks of Toror Hills, Mt. Moroto, and Morulinga in Karamoja, northeastern Uganda. Bulletin de la Commission Geologique de Finlande, 184: 75-132.TRENDALL, A.F. 1965a. Explanation of the geology of Sheet 35 (Napak). Report, Geological Survey of Uganda, 12: 1-70.
Location: