scholarly journals Zircon Ages From a Granulite-anorthosite Complex and a Layered Gneiss Complex Northeast of Baker Lake, District of Keewatin, Geological Setting and Interpretations

1980 ◽  
Author(s):  
M Schau
Keyword(s):  
Lake District ◽  
Geological Setting ◽  
Gneiss Complex ◽  
Baker Lake ◽  
Anorthosite Complex

scholarly journals Pseudo-fractionation trend of the Fiskenæsset anorthosite complex, southern West Greenland

1975 ◽  
Vol 75 ◽  
pp. 77-80
Author(s):  
J.S Myers
Keyword(s):  
Volcanic Rocks ◽  
Granulite Facies ◽  
West Greenland ◽  
Regional Deformation ◽  
Gneiss Complex ◽  
Enormous Amount ◽  
Fractionation Trend ◽  
Anorthosite Complex

The Fiskenæsset anorthosite complex is a sheet of layered igneous cumulates, 350-400 m thick, which was intruded into volcanic rocks, now amphibolites (Escher & Myers, this report). It was later disrupted by the intrusion of an enormous amount of granitoid material, mainly as sheets during regional deformation, and was metamorphosed in amphibolite and hornblende granulite facies about 2850 m.y. ago (Black et al., 1973). Fragments of similar rocks are widespread throughout the Archaean gneiss complex of Greenland, although the name Fiskenæsset complex is limited to the occurrences in the Fiskenæsset region (Bridgwater et al., in press).

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