Akademik Veri Yönetim Sistemi
Jeoloji Muhendisligi Dergisi, cilt.46, sa.1, ss.41-50, 2022 (Scopus)
© 2022, TMMOB Chamber of Geological Engineers. All rights reserved.Using the Bouguer gravity data obtained from the World Gravity Map (WGM2012), the shallow crustal structure of Van Lake and its vicinity has been studied in this study. In this context, it is aimed to investigate the lateral boundaries of the geological units of the region by applying total horizontal derivative and tilt angle methods to the vertical derivative values of the gravity data. The maximum amplitude values of the total horizontal derivative and zero amplitude values of the tilt angle were used to reveal the horizontal boundaries. In addition to the similarity between the results of this study and the results of previous studies, new discontinuity boundaries were determined. In addition, the average depths of the soft/hard sediments, basement and Conrad topographies were calculated with the amplitude spectrum in the study area. In addition, with the inverse solution, the basement topography of the region was calculated and mapped. As a result of the amplitude spectrum calculation, the average depths of soft/hard sediment, basement and Conrad interfaces were determined as 3.1 km, 6.2 km and 14.4 km, respectively. In addition to the determination of the mass boundaries that present a density difference, it has been calculated that the depth values of the basement topography vary between 5.6 and 6.7 km with the inverse solution.