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

被引：0

作者：

Pascal, D. ^{[1
,2
]}

Enachescu, M. ^{[1
]}

Mereuta, P. ^{[1
]}

Petre, A. R. ^{[1
]}

Grigoroscuta, M. ^{[3
]}

Badica, P. ^{[3
]}

机构：

[1] Horia Hulubei Natl Inst R&D Phys & Nucl Engn, 30 Reactorului St,POB MG-6, RO-077125 Magurele, Romania

[2] Univ Bucharest, Fac Geog, Bd Nicolae Balcescu 1,Sect 1, Bucharest, Romania

[3] Natl Inst Mat Phys, Atomistilor 405 A, Magurele 77125, Romania

来源：

ROMANIAN REPORTS IN PHYSICS | 2023年 / 75卷 / 04期

关键词：

SEM-EDX; mineral separation; quartz; cosmogenic nuclide dating; accelerator mass spectrometry; COSMOGENIC NUCLIDES; SEDIMENTS; SOILS;

D O I：

10.59277/RomRepPhys.2023.75.205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 26Al and 10Be 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.

引用

页数：10