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应用扫描电镜探讨红紫泥石英颗粒表面特征表明,约占50%的颗粒表面局部或大部未被掩盖和破坏,还残留母岩在运积中机械作用的痕迹和特征;其余50%左右颗粒表面全部被风化和成土作用所改造;在被改造的表面上,有轻微到中等程度的溶蚀、沉淀以及石英次生加大,致颗粒多呈次棱角状到次圆状。属轻度风化。经模拟强酸雨(pH2)淋洗(10年)的土样,除极少数石英颗粒表面还存有少量运积痕迹外,90%的颗粒表面全部被风化和为成土作用所掩盖、改造;在被改造的表面上,有中等程度的溶蚀、沉淀,以及石英次生加大,致颗粒多呈次圆状,也有次棱角状;但颗粒边缘不平整。属中度风化。这表明高能化学环境加速和加深了石英颗粒的风化。
Scanning electron microscopy study of the surface characteristics of the red purple quartz particles showed that about 50% of the surface of the particles were not partially covered or destroyed, and the traces and characteristics of the mechanical action of the host rock still remained. The remaining 50% The surface was all the weathering and soil modification effect; in the modified surface, there is a slight to moderate erosion, precipitation and quartz secondary increase, resulting in more subgranular angular to sub-round shape. Is a mild weathering. Soil samples simulated with strong acid rain (pH2) (10 years) showed that 90% of all the particles were covered by weathering and altered by the action of soil forming except for a few quartz particles. In the modified surface, there is a moderate degree of corrosion, precipitation, and quartz secondary increase, resulting in many sub-round particles, there are times angular; but the grain edge is not flat. Is a moderate weathering. This shows that the high-energy chemical environment accelerates and deepens the weathering of quartz particles.