East of Loyoro in the Karamoja district, northeast Uganda, a dolerite dike and flow have been noted. The dike strikes north-south, is about six feet wide, and is medium-to coarse-textured. A chemical analysis is given. The flow is a fine-grained, dark blue rock. A Pleistocene age is suggested, which is younger than the nepheline volcanic rocks along the eastern Uganda border.

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