Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland
|Latitude & Longitude (WGS84):||61° 1' 59'' North , 45° 22' 40'' West|
|Latitude & Longitude (decimal):||61.03306,-45.37778|
|Köppen climate type:||ET : Tundra|
|Name(s) in local language(s):||Narsaarsuk (Narssârssuk; Narsarsuk), Igaliku (Igaliko), Narsaq, Kujalleq, Kalaallit Nunaat|
A nepheline syenite pegmatite located geologically in the westernmost margin of the Igdlerfigssalik center, one of the units in the Igaliko nepheline syenite complex. Geographically it is located at an altitude of 270 m, on the Narsaarsuk Plateau, on the western foot of Igdlerfigssalik Mt. The pegmatite is found less than 1 km from the southern end of the moraine at the entrance of the Korok Fjord.
The pegmatite is especially rich in miarolitic cavities, and covers an area about 200 x 500m.
65 valid minerals. 13 (TL) - type locality of valid minerals. 3 erroneous literature entries.
Rock Types Recorded
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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.
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|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Comments: Magmatic arc/suite; Escher & Pulvertaft, 1995; Hamann et al., 2005; Jepsen, unpublished revisions, 2007-08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.