Sedinents of Late ouaternary Period are exposed in Adami rnTulu area. they represent deposition in a fault controlled rnBasin in the northern part of the main Ethiopian Rift vallay-rnThey form thick successions of coarse and fine grained sedi- rnncnts, gravcle,sands, silt and diatomitas awong which grevelsrn and diatopitas are volunetrioally important.