Surface Exploration of Domes Area: an Extension of Olkaria Geothermal Field

Abstract

The surface exploration of the Domes area indicates that surface geophysical structure, fluid flow patterns and the expected output of the wells are controlled by the geological and tectonic evolution of this area. The intersections of N, NE, and EW structures define an area of about 25 which is estimated to have reservoir temperatures in excess of below 800 The deep water dominated reservoir is expected to be within fractured trachytes. Recent volcanic activity and highly differentiated pyroclastic products are evidence of a magmatic body providing the heat source. However, the form and geometry of this body are speculative.