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dc.contributor.authorAltundaş, Suna
dc.date.accessioned2023-01-31T06:05:06Z
dc.date.available2023-01-31T06:05:06Z
dc.date.issued2022en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0926985122003378?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/20.500.12440/5630
dc.descriptionmakaleen_US
dc.description.abstractThe in-situ gamma-ray spectrometry measurements are performed to define and map natural radionuclide variations and the possible uranium migration on the sandstone in the Central Anatolia Region and Deliler sites in Yozgat, Turkey. The concentrations of radionuclide (eU, eTh, K%) and dose rate values were measured totally on 384 points in both areas with a duration of 5 min at each measurement point. The radionuclide ratios (eTh/K, eU/K, and eU/eTh), geochemical indicators (Ume, F parameter and eU-(eTh/3,5) rate) of uranium remobilization in the rocks, and the hazard parameters were calculated and evaluated by using measured data. The separation of uranium-rich or poor areas was made easily and associated with lithological formations by evaluating all the maps produced together. While the highest concentrations of radionuclide, and dose rate values were recorded in the sandstone units under the cover layer that are Eocene neritic limestones, the lowest concentration values and dose rate were measured on siltstone and claystone in the northern part of the Tuglu Tepe area. At the Deliler study area, the lower anomaly zones are coincide with the soils used for the cultivation of chickpeas consists of loosely cemented sandy clay siltstone, claystone, gravel, sand, silt, and clay whereas the highest concentrations observed in the outcropped sandstone and limestones. It can be seen that the study areas have variable radio-activity levels as a result of both the weathering from the surrounding granitic rocks and the transport and accumulation of sediments through different factors. On sandstones serving as reservoir rock for uranium mineralization in both Tuglu Tepe and Deliler sites, there is a uranium migration from the granitic rocks towards these masses and sandstones have been enriched by uranium. As a result of the evaluations, it has been seen that the areas showing uranium enrichment originated from migration can be determined very easily by radioactivity measurements, which is a fast, economical and effective method.en_US
dc.language.isoengen_US
dc.publisherELSEVIERen_US
dc.relation.ispartofJournal of Applied Geophysicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectGamma-ray spectrometryen_US
dc.subjectRadionuclide ratiosen_US
dc.subjectMigrationen_US
dc.subjectUranium enrichmenten_US
dc.titleInvestigation of natural radionuclide variations and the possible uranium migration by testing with gamma-ray spectrometer: An example from Tug?lu Tepe and Deliler Sites in S?efaatli/Yozgat, Central Anatolia Region, Turkeyen_US
dc.typearticleen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Başka Kurum Yazarıen_US
dc.description.wospublicationidWOS:000892113300001en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Jeofizik Mühendisliği Bölümüen_US
dc.authorid0000-0002-5840-0352en_US
dc.identifier.volume207en_US
dc.contributor.institutionauthorAltundaş, Suna
dc.identifier.doi10.1016/j.jappgeo.2022.104866en_US
dc.authorwosidCDD-6490-2022en_US
dc.authorscopusid57008325500en_US


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