Use of energy dispersive X-ray spectroscopy as a convenient technique for estimation of quartz purity in geological samples subject to surface exposure dating with 10Be and 26Al

IF 2.1 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
D. Pascal, M. Enachescu, P. Mereuta, A. Petre, M. Grigoroscuta, P. Badica
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引用次数: 0

Abstract

. Accelerator Mass Spectrometry (AMS) and cosmogenic nuclides techniques are used in quantitative geomorphological studies on large time scale. In order to accurately date surface exposure to cosmic rays, the amount of pure quartz taken into account, needs to be well determined. Depending on the particularity of the rocks, sometimes the presence of feldspar in geological samples hinders the accurate determination of 26 Al and 10 Be by AMS. To overcome this problem, our paper proposes the assessment of quartz purity by SEM-EDX analysis, in an objective and facile way, compared to ICP-MS method. The proposed methodology is not only effective, but it shows features that save time and excessive consumption of reagents that often are not environment and health friendly.
将能量色散 X 射线光谱法作为一种便捷技术,用于估算使用 10Be 和 26Al 进行地表暴露测年的地质样本中的石英纯度
.加速器质谱法(AMS)和宇宙成因核素技术被用于大时间尺度的定量地貌研究。为了准确测定地表暴露于宇宙射线的时间,需要充分确定纯石英的含量。由于岩石的特殊性,有时地质样本中长石的存在会阻碍 AMS 对 26 Al 和 10 Be 的准确测定。为了克服这一问题,我们的论文提出了通过 SEM-EDX 分析评估石英纯度的方法,与 ICP-MS 方法相比,该方法客观、简便。所提出的方法不仅有效,而且具有节省时间和过量消耗试剂的特点,而这些试剂往往对环境和健康不利。
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来源期刊
Romanian Reports in Physics
Romanian Reports in Physics 物理-物理:综合
CiteScore
4.20
自引率
29.60%
发文量
0
审稿时长
4-8 weeks
期刊介绍: Romanian Reports in Physics is a journal publishing physics contributions in the fields of: 1. Mathematical and General Physics 2. Nuclear Physics. Particle Physics. Astroparticle Physics 3. Atomic and Molecular Physics 4. Plasma Physics 5. Condensed Matter 6. Optics & Quantum Electronics 7. Biophysics & Medical Physics. Environmental Physics 8. Physical Methods and Instrumentation 9. Earth Physics
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