Petrogenesis of Cogenetic Silica-Oversaturated and-Undersaturated Syenites by Periodic Recharge in a Crustally Contaminated Magma Chamber: the Kangerlussuaq Intrusion

• Main Authors: East Greenland, Morten S. Riishuus, David W. Peate, Christian Tegner, J. Richardwilson, C. Kent Brooks
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2004
• Subjects: Greenland; Kangerlussuaq
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.8556; http://petrology.oxfordjournals.org/content/49/3/493.full.pdf

Greenland displays concentric zonation from quartz-rich nordmar-kite (quartz syenite) at the margin, through pulaskite, to foyaite (nepheline syenite) in the centre; modal layering and igneous lamination are locally developed but there are no internal intrusive contacts. This is an apparent violatio...