Open AccessThe Precambrian rocks of the Egedesminde–Christianshåb area, West Greenland
Author(s) -
G. M. Henderson
Publication year - 1969
Publication title -
rapport
Language(s) - English
Resource type - Journals
eISSN - 2597-2944
pISSN - 0418-6559
DOI - 10.34194/rapggu.v23.7215
Subject(s) - gneiss , schist , geology , pelite , granulite , geochemistry , metamorphic facies , precambrian , metamorphic rock , migmatite , diorite , sillimanite , quartz , facies , petrology , biotite , zircon , geomorphology , paleontology , structural basin
Most of the area described consists of quartzo-feldspathic gneisses with zones and bands of mica schist and pelitic gneiss, amphibolite, and a few thin marble and calc-silicate bands. Granitic rocks are also present, but are of minor importance. A large quartz diorite body is thought to represent a folded and metamorphosed intrusive sheet. Two metamorphic complexes are present, a predominantly amphibolite facies complex and a granulite facies complex. Migmatites are a prominent feature in some areas of mica schist and pelitic gneiss. At least two, and probably three, deformation phases are represented. A good correlation has been established with adjoining areas.