Interpretation of gravity data of Bergama-Dikili geothermal field

The main purpose of this study is to evaluate the geophysical data of the Bergama-Dikili geothermal field. Bergama-Dikili geothermal field is contributing to the region. Therefore, it is a great importance also in the future. Considering these circumstances, the importance of determination of some parameters such as geological boundaries and depths is increased. In this study, gravity data were interpreted for defining geological structures. Filtering process, upward and downward continuations, second derivation, trend analysis, boundary analysis and power spectrum methods were utilized during the evaluation of data. Besides, the calculated basement depth values with using 3D modeling were mapped. Residuel effects in the data were eliminated by using low pass filter and obtained regional data were mapped respectively using five different cut-off wave numbers. Also, upward and downward continuation methods were applied and mapped for various levels. Second derivation method was made to obtain the boundaries of subsurface structures. After application of trend analysis method, fourth degree trend provided the most suitable mathematical surface for the data. Keywords: Geothermal, gravity data, Bergama-Dikili, heat enegy, geophysical methods