Türkiye Jeoloji Bülteni

Stratigraphy of Autochthonous and Cover units of the Bozdağlar Massif NW Konya

Abstract: This paper is concerned with the stratigraphy of autochthonous (? parautochthonous) metamoiphic rocksof the Bozdağlar massif and its unmetamorphosed cover units, in northwest of Konya.The Upper Permian - Lower Cretaceous Gökçeyurt group, which is obducted by Mesozoic Ladik metamorphitesin the study area, is the autochthonous/parautochthonous assemblage of the massif. The group consists mainly oflower - grade metamorphic rocks originally representing shallow - marine environment and is herein subdivided in three formations which are gradational to one another. These are, in ascending order, (1) The Upper Permian Derbentformation composed of metecarbonate, metaquartzite and phyllite, (2) The Upper Permian - Upper Triassic Aladağ formation consisting of alternation of metaconglomerate, metasandstone, phyllite and metacarbonate with exotic metacarbonate blocks and rare metabazite intercalations, and (3) The Upper Triassic - Lower Cretaceous Lorasdağı formationwhich is made up of a thick sequence o metacarbonate rocks with a few interbeds o metachert.The Upper Miocene - Lower Pliocene Dilekçi group consisting of alluvial fan, lacustrine and volcanic rocks, TheUpper Pliocene - Quaternary alluvial complex of Topraklı formation and Recent alluvia unconformably rest on theolder units and form the cover rocks of the massif.