Report on airmagnetic surveys of two areas in the Kenya rift valley ag

Abstract

Airmagnetic surveys have been carried out in two areas within the Kenya Rift system: the Lake Magadi region and the region south of Lake Hannington. In both regions, but particularly in the area south of Lake Hannington, NW-SE trending magnetic anomalies stand out clearly. The source of these anomalies is considered to be in the deeper earth's crust beneath the rift zone. At present no explanation for the anomalies can be offered. There is no convincing evidence from the magnetic data for the occurrence of extended intrusive bodies in the upper part of the earth's crust beneath the rift floor.