Preliminary Studies of Structures Controlling the Flow of Brine in the Awe Brine Field

Studies of the Awe brine field in the middle Benue Trough have revealed interesting structural features deserving a considerable attention. Some interesting field evidence points to the probability of the occurrence of dome structures in the brine bearing sediments. This brine field is underlain by Formations of Cretaceous age (Asu River Group, Awe, Keana and Ezeaku Formations). The tectonic set up in this brine field is * dominated by the Keana anticlinorium and brine is seen to issue from flanks of the transitional beds of the Awe Formation which have been exposed by erosion.ln Old Awe town, structural features mapped revealed dips of up to 14° to 30° to the north and south. Usually, close conjugate joint systems, infilled by silica revealed the same pattern as the major fold axis, thus contribute to the flow of brine in the field.