The concrete judgement on the material source area has not yet been made for lack of the relevant land facies heavy mineral content data in the Beihai area.
由于缺乏北海陆域陆相地层重矿物含量等相关资料，暂未做物质来源区的具体判断。
参考来源 - 廉州湾南部海域泥沙来源及运移趋势分析 Analysis of the Sediment Sources and the Transport Tendency in the Southern Lianzhou Bay·2,447,543篇论文数据，部分数据来源于NoteExpress
Upper Permian is land facies fragments rock construction.
上统为陆相碎屑岩建造。
During the early period of the basin, it was deposited mainly bearing coal construction clastic rocks and volcanic rocks of land facies.
盆地早期，沉积了以陆相碎屑岩和火山岩为主的含煤建造。
Based on sequence stratigraphy principles, an exploration method for the subtle traps in lake basin slope break of land facies was put forward by using the theory of slope break.
以层序地层学理论为基础，提出应用坡折带理论勘探陆相湖盆斜坡带隐蔽油气藏的方法。
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