Precambrian Geology of the Ishiara area, Kenya

Abstract

The study deals mainly with the relationship between the metamorphic rocks of Ishiara and the intrusive basic to ultra-basic rocks. The Mozambique belt rocks in this area consist of a wide range of gneisses, migmatites and granitoid gneisses, generally trending in a NNW-SSE to NNE-SSW direction. Intruding through these rocks are basic to ultra-basic rock bodies, also with the same general trends.

In this study of the area, it is observed that the intrusive bodies which occurred during the later stages of the Pan-African orogeny did not significantly alter the original regional trends of the Mozambique belt rocks in the area.