Two year evolution of radon emission and tectonic movements in Tuzla Fault, Seferihisar-İzmir

İçhedef, Mutlu; Saç, Müslim Murat; Harmansah, Coskun; Taşköprü, Caner

doi:10.1016/j.apradiso.2013.12.011

Cited by 19 publications

(5 citation statements)

References 26 publications

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“…This equation allows to select earthquakes that can influence the measurement location. Besides this, it is needed to define another parameter to evaluate the impact of the two earthquakes with the same magnitude at different distances (Silva, Bezzeghoud, Oliveira, Reis, & Rosa, ; Silva et al., ), İçhedef, Saç, Harmanşah, and Taskopru, .…”

Section: Methodsmentioning

confidence: 99%

Ground water radon anomalies in Bodrum Peninsula

et al. 2018

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Bodrum Peninsula is located between Hellenic Trench in the west and Gökova Fault Zone in the east which is affected by hundreds of earthquakes every year. Because of its active environment is allowed to monitor tracers/precursors continuously to analyse natural processes. This study focused on the determination of ground water radon (222Rn) concentrations in the Bodrum Peninsula in terms of seismic activities. Radon levels of ten ground water wells were measured periodically throughout the peninsula and these wells were divided into two groups according to the number of earthquakes they are exposed. Radon variations in second group stations are fairly significant as a result of high number of earthquakes. In these stations, radon continuously increased before the seismic storm and then decreased step by step. The results indicated that radon variations in ground waters of Bodrum Peninsula can be a good indicator for seismic storms instead of one specific event.

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Section: Methodsmentioning

confidence: 99%

Ground water radon anomalies in Bodrum Peninsula

et al. 2018

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“…1). In the area several fault line are determined to be active faults and many reverse fault are related to paleo-tectonic activities (Ocakoglu et al 2006;İçhedef et al 2014;Tarakçı et al 2014).…”

Section: Geological Settingsmentioning

confidence: 98%

Natural radioactivity levels of great soil groups in Seferihisar Geothermal Region, Turkey

et al. 2015

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In this study, measurement of natural radioactivity and analyses of physical properties of soil were carried on great soil groups around the Seferihisar Geothermal Region. The radioactivity levels in soils were analyzed using scintillation gamma spectroscopy. The activity concentrations for 226 Ra, 232 Th, and 40 K range from 7.1 to 32.0 Bq kg -1 , 15.2 to 35.9 Bq kg -1 and 223.1 to 802.2 Bq kg -1 , respectively. Obtained data was compared with average values given by UNSCEAR and the other studies. The radium equivalent activity (Ra eq ) in soil samples ranges from 42.2 to 144.7 Bq kg -1 which are lower than the suggested maximal admissible value of 370 Bq kg -1 recommended by OECD. In addition, the value of external exposure dose has been determined from the content of natural radionuclides in soil. The absorbed dose rates change between 20.6 and 70.9 nGy h -1 with a mean value of 46.7 nGy h -1 which is lower than the global average value of 55 nGy h -1 . The annual effective dose rates varied from 25.2 to 87.0 lSv year -1 with an average value of 57.3 lSv year -1 . Obviously, all the calculated values were lower than this value, and therefore the environment of Tuzla Fault can be regarded as an area with normal natural background radiation.

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“…Radon ( 222 Rn) exists at varying activity concentrations in geological environments, and it is a unique ultra-trace component for tracking geodynamic events. The migration of radon from rock, soil, and groundwater to the atmosphere has been examined as a tool for monitoring seismic and volcanic activity [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Evidence for periodic influences on radon time series was obtained from the active Manisa Fault Zone, Western Anatolia Extensional Province, Turkey

İçhedef

Taşköprü

Sözbi̇li̇r

et al. 2023

Preprint

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Soil gas radon anomalies have been used for predicting earthquakes since it was proved that radon is one of the most effective natural process tracers. Analysis of the radon time series is the crucial phase to demonstrate the relationship between an earthquake and radon anomaly. A major part of the analysis of a time series is the characterization of its periodic and non-periodic components. This study, it is aimed to reveal the periodic components in the soil gas radon time series obtained from the Manisa Fault Zone (MFZ), one of the active seismic sources of Western Anatolia. Periodic components of the short-term radon time series were tested with Fast Fourier Transform (FFT). The obtained results show that atmospheric pressure component S1, which acts periodically, has been encountered in the radon time series. It is also found that soil gas radon activity concentrations were quite variable during the study period independently from the periodic components.

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Two year evolution of radon emission and tectonic movements in Tuzla Fault, Seferihisar-İzmir

Cited by 19 publications

References 26 publications

Ground water radon anomalies in Bodrum Peninsula

Ground water radon anomalies in Bodrum Peninsula

Natural radioactivity levels of great soil groups in Seferihisar Geothermal Region, Turkey

Evidence for periodic influences on radon time series was obtained from the active Manisa Fault Zone, Western Anatolia Extensional Province, Turkey

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