The Tertiary to Recent North Atlantic igneous

• Main Author: C. K. Brooks
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Greenland; Kialineq; East Greenland; Iceland; North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.520.1935; http://2dgf.dk/xpdf/bull26-01-02-77-83.pdf

An occurrence of basic pillows enclosed in a syenitic matrix is described from the little-known Kialineq district. Cuspate margins, chilled contacts and long fingers of syenite extending upwards into the basic material are evidence that the two magmas were fluid at the same time. Hybridization between these two magmas has produced a microdiorite. The chemical variation in these rocks is linear and quite dissimilar to that observed in other suites from the East Greenland Tertiary but resembles that observed both in mixed rocks from other parts of the province, e.g. eastern Iceland, and in calc-alkaline rocks from orogenic regions.