Akademik Veri Yönetim Sistemi
25th EM Induction Workshop, İzmir, Türkiye, 11 - 18 Eylül 2022, ss.297
The Neogene-Quaternary volcanism in central Anatolia is characterized by ignimbrite sequences, and
associated calderas have been partly dismantled and buried as a result of tectonic, volcanic, erosional and
depositional processes, which cannot enable to identify of these structures from the surface expressions. To
search the location of a concealed caldera, one of the probable ignimbrite source vents, magnetotelluric data
acquired at 60 stations in the period range from 0.001s to 1000 s were used to derive an upper crustal threedimensional
electrical resistivity model in the Cappadocia region, central Anatolia, Turkey. The resistivity model
provides constraints on the geometry and location of a buried caldera situated in the Çiftlik basin, which is
characterized by a low resistivity (<10 Ωm) region coinciding with a caldera-like feature that is interpreted as a
buried caldera complex (i.e., Çiftlik caldera) and attributed to the probable source area for the ignimbrites. The
collapse and the burying process of the caldera complex have been linked with the transtensional tectonics of
the Cappadocia region. The caldera margins are also compatible with the Quaternary fills of the Çiftlik basin
and are bounded by faults related to the Cappadocian Volcanic Province fault system. Locating a buried
eruption center beneath the Quaternary deposits may contribute to identify the source of Miocene-Pliocene
ignimbrite emplacements.