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Ozmen, Ozgur Tuna; Yamanaka, Hiroaki; Ates, Erkan; Tekin, Kudret; Ceken, Ulubey; Koparmal, Erkan; Etiz, Ali; Elmas, Nalan
{ "DOI": "10.1080/08123985.2021.1880269", "abstract": "This paper reports the results of a case study of the application of the microtremor exploration method in western Turkey. We have conducted microtremor surveys at strong motion stations in Aydin and Denizli provinces to derive shallow S-wave velocity profiles. Array records of vertical microtremor motion were acquired at 12 and 15 stations in Aydin and Denizli provinces, respectively. A spatial autocorrelation analysis was applied to the records to estimate Rayleigh wave phase velocities in the frequency range of 3-30 Hz. Then, the phase velocity dispersion at each station was inverted to a one-dimensional S-wave profile down to a maximum depth of about 50 m. The soil models at 5 and 11 stations in Aydin and Denizli provinces, respectively, have a bedrock with an S-wave velocity of 400-600 m/s at depths less than 10 m. The spatial distribution of average S-wave velocities in the top 30 m of the revealed profiles shows low values in the Buyuk Menderes Graben and the Denizli Basin, and high values in the surrounding hill or mountain areas. We compared our S-wave profiles with those from previous surface-wave studies. S-wave velocities in shallow parts to a depth of 5-10 m are similar in the two studies. However, S-wave velocities in deep parts are different at some of the stations.", "author": [ { "family": "Ozmen", "given": " Ozgur Tuna" }, { "family": "Yamanaka", "given": " Hiroaki" }, { "family": "Ates", "given": " Erkan" }, { "family": "Tekin", "given": " Kudret" }, { "family": "Ceken", "given": " Ulubey" }, { "family": "Koparmal", "given": " Erkan" }, { "family": "Etiz", "given": " Ali" }, { "family": "Elmas", "given": " Nalan" } ], "container_title": "EXPLORATION GEOPHYSICS", "id": "232086", "issue": "6", "issued": { "date-parts": [ [ 2021, 1, 1 ] ] }, "page": "659-668", "title": "Microtremor exploration at strong motion stations in Aydin and Denizli provinces, western Turkey", "type": "article-journal", "volume": "52" }
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