Türkiye Jeoloji Bülteni

Volcanics of Triassic Age in Bitlis Metamorphic Rocks

Abstract: The aim of this study is to introduce the Upper Trassic sequence around Dol Village (Palu-Elazığ).in the studied area the magmatic rocks which are composed of metabasalt and metadiabase are in primary relation and alsocontemporaneous with the Norian sedimentary sequence. This sedimentary sequence is represented by crystalline limestone,marble, silicified shale, radiolarite, radiolarian chert, sericite-chlorite schist, glaucophane schist, metaquartzite and metatuff.In the crystalline limestone which is interfingering with metabasalt, Megalodont fragments have been found.By this study the presence of Upper Triassic aged volcanic material bearing sedimentary sequence in Bitlis metamorphites hasbeen proved for the first time by all its evidences. It is known that the splitting of the Arabian and Anatolian continents andforming of an ocean have started in Upper Triassic. At the beginning of rifting a deep trough has formed on the continental crustby block faulting. The Norian aged sequence around Dol Village has been deported in this trough.