Mineralogy of the Werner Bjerge alkaline complex, East Greenland

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Authors:Brooks, C. K.; Engell, J.; Larsen, L. M.; Pedersen, A. K.
Author Affiliations:Primary:
Univ. Copenhagen, Inst. Petrology, Copenhagen 1350, Denmark
Source:Copenhagen [Meddelelser om Gronland. Geoscience, Vol.7, 35p. Publisher: Commission for Scientific Research in Greenland,], Denmark. ISSN: 0106-1046
Publication Date:1982
Note:In English. 2 p. refs.
Summary:The Tertiary Werner Bjerge complex is divided into a basic complex, a northern complex and a nepheline syenite complex. The basic complex consists of cumulate rocks (ranging from ultramafic to gabbros). The northern complex includes a wide range of felsic rock types, of which two granites have been examined. In the nepheline syenite complex the rock types investigated include foyaites, a tinguaite, and quartz-bearing pegmatite. It is concluded that the geochemical coherence between various rock units of the intrusion suggests a comagmatic origin, while the close similarities between the mineralogies of the Kangerdlugssuaq and Werner Bjerge alkaline complexes suggest a similar origin. [C.N.]
Subjects:Accessory minerals; Alkalic composition; Cenozoic; Genesis; Igneous rocks; Mineral composition; Nepheline syenite; Petrology; Plutonic rocks; Stratigraphy; Syenites; Tertiary; Arctic region; East Greenland; Greenland; Werner Bjerge
Abstract Numbers:87M/4883
Record ID:1984043939
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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