But in the north part of the sub-sag, controlled by the syn-sedimentary fault, steep fault-step was developed with mainly deposition of sub-aqueous fan, turbidity fan, and front of fan-delta.
北部为受生长断层控制的陡坡断阶带，以典型的水下扇、浊积扇和扇三角洲近端前缘沉积为主。
Huahai sag is a small sedimentary fault-depression basin formed during Mesozoic-Cenozoic periods, its accumulation conditions of oil and gas represent the characteristics of medium-small basins.
花海凹陷是一个小型的中新生代沉积断陷，其油气成藏条件在中小型盆地中具有代表性。
Fault analysis show that Taiyuan basin is sedimentary basin of Late Cenozoic rather than rifted one.
经断裂分析，太原盆地不是裂谷盆地，而是晚新生代的沉积盆地。
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