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During the South-East Greenland Mineral Endowment Task (SEGMENT) expedition in 2012, the possible mineral potential of the Skjoldungen region was investigated. Th e region is part of the Archaean North Atlantic Craton, and includes the Skjoldungen Alkaline Province (Nielsen & Rosing 1990; Blichert-Toft et al. 1995; Kolb et al. 2013). A quartz-wolframite-molybdenite vein with phyllic alteration was identifi ed during the reconnaissance work in the northwestern part of the peninsula of Th rudvang, close to the Kangertikajik fj ord (GGU 446946; Figs 1, 2). Th e c. 30 cm wide, subvertical vein is hosted in mafi c granulite. However, the deformed nature of the vein and steep terrain did not allow us to establish its extent or general trend. Two rusty amphibolite horizons, in the mafi c granulite hosting the vein, have anomalous concentrations of tungsten, but not of molybdenum (GGU 446934 and 446948; Table 1). Ultraviolet light examination conducted during the study revealed that tungsten is present as pale blue luminescing scheelite grains, rather than as wolframite, as in the vein. As such, these anomalous amphibolite samples are similar to scheelite-rich stratabound horizons documented in supracrustal sequences in the Godthåbsfj ord region in southern West Greenland, which were interpreted by Appel & Garde (1987) to be of exhalative origin.

A quartz-wolframite-molybdenite vein and scheelite in amphibolite horizons from Thrudvang peninsula, Skjoldungen, SE Greenland