The Minturn Elv magnetite occurrence, Inglefield Land, North-West Greenland

An airborne geophysical programme in Inglefield Land in 1994 revealed numerous magnetic anomalies. Field investigations in 1995 of the strongest anomaly revealed a source concealed by overburden, although abundant magnetite float occurs in the surficial deposits. The float consists of about 90% magnetite and 10% olivine. Chemical analyses of the magnetite float proved up to 0.26% V2O5 and 0.10% Ni. No sulphides were found in polished sections. Several kilometres along strike to the east, in an amphibolite succession magnetite outcrops in up to 40 cm wide bands composed of olivine, magnetite and pleonaste.

The magnetite is of magmatic origin and associated with basic and ultrabasic rocks. Geophysical data suggest that the magnetite-bearing intrusions can be traced for about 100 km along strike.