Crystallization History of the Upper Layered Series, Kap Edvard Holm, East Greenland

• Published in: Journal of Petrology
• Main Author: ELSDON, R.
• Format: Text
• Language: English
• Published: Oxford University Press 1971
• Subjects: Articles; Greenland; Kap; East Greenland; Kap Edvard Holm
• Online Access: http://petrology.oxfordjournals.org/cgi/content/short/12/3/499; https://doi.org/10.1093/petrology/12.3.499

Field studies of the Upper Layered Series of the Kap Edvard Holm Complex indicate that consolidation occurred by accumulation of primocrysts near the floor of the magma chamber; nucleation occurred continuously near the roof of the chamber and intermittently near the base. Over an exposed thickness of 4000 m the plagioclase shows no detectable cryptic variation, and a hypothesis of combined liquid and crystal fractionation processes is invoked to explain this feature. The crystallization history of mafic intrusives is considered on the basis of available liquidus and solidus curves for anhydrous and water–saturated magmas.