overlying deposit meaning in Chinese

表层沉积
表沉积层

The geochemical examination of the sandstones and mudstones from the xikang group has led us to conclude that the debris are derived mostly from the surficial rocks and their overlying deposits on the xikang - yunnan ancient land , and tectonic settings display the transition from the passive continental margin to active continental margin and finally to archipelago
通过对西康群砂、泥岩地球化学组成特征研究，认为其物源来自康滇古陆表壳岩及其上覆的盖层沉积，大地构造属性为被动大陆边缘到活动大陆边缘再到多岛弧的转化。
The factors included the characters of terranes and weak interbeds and the intersections with slope surface ; the characters and combinations of structure joints and the intersections with slope surface ; combinations of lithology ; dualistic structure of m - shaped slope made up of red rockmass and overlying deposit soil
按红层边坡岩体结构状态，把红层边坡岩体结构划分为4种，然后又按红层边坡岩体的岩性组合特征、岩层产状与坡面产状的关系、结构面的发育情况及其与坡面的关系、以及上覆堆积土的边坡岩体的坡顶线形状和岩土组合特征细分为13个类型和亚类。