Research Information System
World Multidisciplinary Earth Sciences Symposium 2016, Prague, Czech Republic, 5 - 09 September 2016, pp.181
Solhan volcanics located in the eastern of Bingöl covers an area of approximately 1000 km2. Our K-Ar dating results indicate that age of this magmatic activity range between 6-3.3 Ma. Schists and metacarbonates in upper unit of the Bitlis Massif and metagranites which observed in around Kızılağaç and Genç takes place on the basis of Solhan volcanics and extensive volcanic activity observed in this area. They consist of olivine, plagioclase, pyroxene phenocrysts and exhibits porphyrtic and crystalline as well as massif textures. The groundmass in these lavas contains the microcrystals of the same mineral assemblage and volcanic glasses. Solhan volcanics have broad compositional range from basalt to andesite and trachyandesite, displaying both alkaline and subalkaline characteristics. Enrichment of large ion lithophile elements (LILE) and light rare earth elements (LREE) relative to high strength filed elements (HFSE) indicate that mantle source of the Solhan volcanics had been enriched by a clear subduction component. Petrologic models obtained by using Isotopic he lavas is important of the AFC processes, suggesting evolved lavas includes to 2-6 % assimilation rates. Our melting model calculations show that basaltic melts in this part of the East Anatolia Region (Turkey) would be produced by mixture of the melts obtained by melting of the mantle sources including both of the amphibole bearing garnet lherzolite and spinel lherzolite with 1 % partial melting degree.
Key words: East Anatolia; Solhan volcanics; AFC; melting.