کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9461128 | 1312681 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Natural radioelement concentration in the Troodos Ophiolite Complex of Cyprus
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Natural radioelement concentration in the Troodos Ophiolite Complex of Cyprus Natural radioelement concentration in the Troodos Ophiolite Complex of Cyprus](/preview/png/9461128.png)
چکیده انگلیسی
High-resolution γ-ray spectrometry was exploited to determine naturally occurring thorium (Th), uranium (U) and potassium (K) elemental concentrations in the whole area covered by the Troodos Ophiolite Complex of Cyprus. For that purpose, a total of 59 samples from surface soils and 10 from the main rock formations of the region of interest were analysed. Elemental concentrations were determined for Th (range from 2.5Ã10â3 to 2.0 ppm), U (from 8.1Ã10â4 to 0.6 ppm), and K (from 1.3Ã10â4% to 1.0%). The average values (A.M±S.D.) derived are (0.24±0.34) ppm, (0.10±0.10) ppm and (0.21±0.24)%, for Th, U, and K, respectively, in the soils, and (0.52±0.17) ppm, (0.17±0.11) ppm and (0.49±0.87)% in the rocks. From these values, a radioactivity (radioelement) loss of nearly 50% is estimated in the underlying surface soils due to leaching and eluviation during weathering of the rocks. The measured Th/U ratio exhibits values between 2 and 4, whereas the K/Th ratio is highly variable ranging between 1.5Ã103 and 3.0Ã104.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Geochemical Exploration - Volume 85, Issue 2, February 2005, Pages 47-54
Journal: Journal of Geochemical Exploration - Volume 85, Issue 2, February 2005, Pages 47-54
نویسندگان
Michalis Tzortzis, Haralabos Tsertos,