Kuannersuit Plateau (Kvanefjeld), Ilímaussaq complex, Narsaq, Kujalleq, Greenland
|Latitude & Longitude (WGS84):||60° 58' 30'' North , 45° 59' 30'' West|
|Latitude & Longitude (decimal):||60.97500,-45.99167|
|Köppen climate type:||ET : Tundra|
|Other/historical region names associated with this locality:||Quanit Qaqa Plateau; Kvanefjeld Plateau|
The Kuannersuit Plateau is situated in the northwestern part of the Ilímaussaq complex. It's located north-west of the Narsaq River. A small peak at 685 m is named Kvanefjeld Mountain. The plateau consists of different varieties of fine-grained U-Th-REE rich lujavrites (aegirine-, arfvedsonite-, naujakasite-, and brown aegirine lujavrites).
Kvanefjeld is the second-largest deposit of REEs in the world, and the sixth largest uranium deposit (Elements 2012, p. 398); drilling by Greenland Minerals and Energy Ltd. has recommenced in 2010.
At 500m altitude, below the plateau, on the slope of the Kvanefjeld Mountain, there is an old, now abandoned adit, the Kvanefjeld adit, an exploration drift for Uranium. The mine dumps is found below the adit, in a large area.
A large number of tugtupite-bearing albite veins with a complex mineralogy intersects these alkaline rocks (Friis et al. 2004).
Kuannersuite-(Ce) and nabesite were first described from these veins. For detailed information on the mineralogy in these veins see the locality called Tugtupite-bearing albitites.
Mineral ListMineral list contains entries from the region specified including sub-localities
66 valid minerals. 10 (TL) - type locality of valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
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This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Stenian - Ectasian|
1000 - 1400 Ma
|Igneous: intrusive; Intrusive: syenitic|
Age: Mesoproterozoic (1000 - 1400 Ma)
Description: Greenland, Gardar Province
Comments: Magmatic arc/suite; Escher & Pulvertaft, 1995; Hamann et al., 2005; Jepsen, unpublished revisions, 2007-08
Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A.