Open AccessThe Ivnartivaq complex, Sermilik, Ammassalik
Author(s) -
C.K Brooks,
G Stenstrop
Publication year - 1989
Publication title -
rapport
Language(s) - English
Resource type - Journals
eISSN - 2597-2944
pISSN - 0418-6559
DOI - 10.34194/rapggu.v146.8102
Subject(s) - ultramafic rock , amphibole , geology , gneiss , talc , geochemistry , proterozoic , magnetite , chlorite , mineralogy , quartz , metamorphic rock , paleontology , tectonics
The Ivnartivaq complex is a small ultramafic body enclosed in quartzo-feldspathic gneisses. It consists largely of serpentinite but has a core of fresh dunite and abundant veins of asbestiform minerals containing amphibole, talc, chlorite and magnetite. The complex is early Proterozoic in age. It probably does not contain economic deposits of either industrial or metallic minerals.