- GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
The paper describes reaction zones at a contact between the Older Granodiorite of Donegal and an included mass of metadolerite. The metadolerite has been converted to a biotite-rich rock and the granodiorite has been converted to a leucotrondhjemite. Chemical analyses and petrographic descriptions are given for each of the rock types.