- 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
In the area south of Loch Monar in western Scotland, a swarm of camptonitic dikes is intruded into the limb of a large synclinal fold in the metamorphosed Moine series. The dikes include monchiquites, olivine basalts, olivine dolerites, and camptonites. They trend west- southwest as a rule, guided by the steep foliation planes in the Moine. It is thought that the camptonites originated by crystallization of late fractions from a magma of basaltic type. Chemical analyses are included.