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A hidden caldera revealed from magnetotelluric data in Cappadocia region of central TurkeyNormal access

Authors: A.T. Basokur, N. Meqbel, Ö. Hacioglu, H.I. Arslan and T. Efeçinar
Event name: 10th Congress of the Balkan Geophysical Society
Session: 4.3 Geothermal Exploration
Publication date: 18 September 2019
DOI: 10.3997/2214-4609.201902617
Organisations: BGS, EAGE
Language: English
Info: Extended abstract, PDF ( 2.62Mb )
Price: € 20

A magnetotelluric survey has been conducted in the Cappadocia region of central Turkey in order to find new geothermal resources. The survey area has formerly been postulated as the location of a buried caldera that was one of the main eruptive centres of Cappadocian Volcanic Province. Three-dimensional non-linear conjugate gradient inversion of magnetotelluric data by using the full impedance tensor helps to delineate the subsurface resistivity distribution. The derived resistivity model reveals the possibility of a buried caldera. The low resistivity anomalies are interpreted as the clay alteration zones caused by hydrothermal activities.

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