ABSTRACT: The basement rocks of the Menderes massif, often referred to as `the core` consist mainly of augen-gneiss, granitic geniss and migmatites. An obscured unconformity exist between the core- and the overlying cover consisting of two sequences.., The first, metamorphic sequence at the base consist of garnetif erous-schist, muscovite^quartzite, chlorite- chloritoid schist, calc-schist and phllite. Another obscured, unconformity seperates this sequences from the overlying slightly metamorphic sequence which starts with basal quartzconglomerates grading upward to phylliles, dolomite, crystalline limestone, red limestone, turbiditic sandstone and greywackes with exotic blocks. The age of 4Jie cover rocks ranges from Devonian to Paleocene. The rock unite Possibly belonging to the Taurus orogenic belt are correlated with the cover rocks of the Menderes massif and their lateral, continuation is defended, The rocks consisting