Single-particle characterization of soil samples collected at various and areas of China, using low-Z particle electron probe X-ray microanalysis

摘要

Individual soil particles collected at and areas of China are analyzed using a single particle analytical technique, named low-Z particle electron probe X-ray microanalysis (EPMA). The major chemical species encountered in soil samples are SiO2, aluminosilicates, CaCO3, Fe-containing particles, and carbonaceous particles. Aluminosilicate particles are the most abundant in soil samples, followed by SiO2 particles. For soil samples collected at Loess plateau nearby the Yellow river, aluminosilicate and CaCO3 species are more abundantly observed than for soil samples collected at the Tengger and the Hungshandake deserts. Whereas, sand desert soils have higher content of SiO2 than loess soils.