Description
Widespread acid plutons of dominantly granite-tonalite-quartz monzonite composition. Probable sub-volcanic equivalents of the Early - Middle Jurassic silicic volcanic rocks (the Mapple and Kenney Glacier Formation). Associated with felsic dyke/sheet intrusion.
Age
Jurassic
Map Reference
Riley, T. R., Flowerdew, M. J. & Haselwimmer, C. E. Geological Map of Eastern Graham Land, Antarctic Peninsula (1:625 000 scale). Sheet 1, (British Antarctic Survey, 2011). Available here.