The dynamical conditions of transport and deposition of sedimentary materials are usually inferred from their grain size, which is a fundamental property of the materials and may tell us much about the origins and history of the materials. Moment technique and graphical technique are the two principal methods to calculate grain size parameters for sedimentary analysis. In using the moment technique, calculation of the grain size parameters can be handled automatically with the help of computers, while in us...
【基金】
国家自然科学基金(41571002)
【更新日期】
2018-08-24
【分类号】
P512.2
【正文快照】
粒度特征受搬运和沉积过程的动力条件控制,是沉积物的基本特征,与沉积环境关系密切(Mc Cave et al.,1991)。沉积物的粒度成分由于搬运方式的不同可分为推移质、跃移质和悬移质3个粗细不同的组分。不同类型的沉积物中3种搬运方式的作用比例不同,因此沉积物的粒度组成中粗细组分?