Particle-bound Be-10 from a low latitude arid region

作者：Aldahan A^*; Possnert G; El Saiy A; Abdelghany O

来源：Journal of Radioanalytical and Nuclear Chemistry, 2014, 299(3): 1709-1713.

DOI：10.1007/s10967-013-2853-8

• Be-10
• Arid regions
• Dust
• Soil
• UAE

The Be-10 isotope is widely used in geochronology, climate and environmental analyses and astrophysics where atmospheric deposition model estimate plays a vital role for the initial concentration. Data from arid regions have not been well constrained because of sparse measurement and here we present Be-10 concentration in samples of dust, soil, marine sediments and paleosol collected from an arid to semi-arid low latitude region. These results indicate concentrations that are about a factor of three lower than values expected from latitude zonal models, but are comparable with global atmospheric depositional model. The agreement and discrepancy between model and measured data are rather vital for establishing accurate initial Be-10 in the Earth%26apos;s surface environment for reconstruction of paleoclimatic variability (precipitation rates and temperature).

• 出版日期2014-3