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各种石英颗粒表面特征的发育与否,是任何扫描电镜分析重建地质环境的基础,对于在石英颗粒表面获得的许多可见特征来说,虽然已有许多“清单”(Krinsley和Donahue,1968:Cater,1984),但是,专门检测技术的有效性还是一个争论的问题.由这类分析获得的最为重要的物理参数之一是边缘磨蚀,因为圆度值是一种发现于石英砂颗粒的主要形态特征.例如,1984年Goudie和Bull发现两类非洲沉积物之间的主要差异是,在深度风化剖面中总体缺乏边缘磨蚀颗粒,并以此为基础建立了该研究区的斜坡
The development of various quartz grain surface features is the basis for any SEM analysis of the geological environment to be reconstructed, although many “features” are available for many of the visible features on the quartz grain surface (Krinsley and Donahue, 1968 : Cater, 1984), however, the effectiveness of specialized testing techniques remains a matter of debate. One of the most important physical parameters obtained from this type of analysis is edge abrasion because the roundness value is found in quartz sand grains For example, in 1984, Goudie and Bull found that the major difference between the two types of sediments in Africa was the general lack of edge-erosive particles in the deeply weathered profiles and the establishment of the slope of the study area