Cementation of pliocene-Quaternary fluviatile clastic deposits in and along the Oman mountains

Abstract

Huge masses of coarse clastics were deposited and cemented during and shortly after the last uplift phases of the Oman Mountains; the environment was fluviatile and the climate was alternatively humid and semi-arid. The cement includes mainly calcite, high-magnesium calcite and dolomite; their genesis and relation to the area of water run off are discussed. The cement textures indicate both vadose and phreatic cementation. The absence of cement cathode-luminescence seems to be characteristic of this fresh-water environment of cementation.