Most deep ocean basins range in depth from about 4 to 6 kilometers, with some narrow trenches near Pacific ocean basin margins dropping to as low as 11 km below sea level.
Based on an analysis of the conodont biofacies, it is inferred that there was probably a deep-seabasin facies sedimentary environment in the Wenguer area during the early Middle Permian.
通过牙形石生物相分析，推断温古尔地区中二叠世早期可能为盆地相较深水沉积环境。
3
The large-sized lifting platform is being used in large-sized deep water basin and it provides one of the necessary ways for developing the deep-sea equipments.