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http://dx.doi.org/10.5467/JKESS.2017.38.6.421

A Preliminary Study of Korean Geostansdards Using Mesozoic Granites  

Jin, Mi-Eun (Department of Geological Sciences and Research Institute of Natural Sciences, Gyeongsang National University)
Sun, Gwang Min (Neutron Utilization Research Division, Korea Atomic Energy Research Institute)
Park, Sang Gu (Department of Geological Sciences and Research Institute of Natural Sciences, Gyeongsang National University)
Jwa, Yong-Joo (Department of Geological Sciences and Research Institute of Natural Sciences, Gyeongsang National University)
Publication Information
Journal of the Korean earth science society / v.38, no.6, 2017 , pp. 421-426 More about this Journal
Abstract
In this study, we selected three representative granite samples and conducted petrological observation to establish the Korean geostandards. Samples were taken from the two Jurassic (KJG-1, KJG-2) and one Cretaceous (KCG-1) granites in South Korea. The powder samples were prepared by the standard pulverization process, and glass beads were made for geochemical analysis using X-ray fluorescence (XRF) method, and finally, major element contents of the samples were acquired. The analytical data are shown with mean, standard deviation and relative standard deviation. The accuracy of the analysis was confirmed within an estimated error range of about 5% by comparing the recommended true values of the USGS and GSJ geostandards. Also, we checked the analytical precision by calculating a relative standard deviation of about 3% from the XRF analytical results for the three samples.
Keywords
geostandard materials; reference materials; chemical analysis; granite; X-ray fluorescence;
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