流冰,浮冰
The result indicates that the object layers are divided into two depositional systems, the barrier seacoast depositional systems are recognized on upper Carboniferous taiyuan phase with tidal flat, lagoon and barrier bar sedimentary deposit.
结果表明,研究区内目的层段可以划分为2个沉积体系:(1)上石炭统太原期为有障壁海岸沉积体系,发育潮坪泻湖障壁砂坝沉积。
In the later period, the Sangtamu Formation slope-tidal flat deposit with detrital rock being dominant developed.
晚期则发育以碎屑岩为主的桑塔木组斜坡&潮坪沉积。
英语网 · 四六级英语
英语网 · 双语娱乐资讯
英语网 · 英语词汇