The hanging wall area of fault can be used not only as depositional area, but also as bypass for the sediments to the center area of deposition.
断裂的下降盘不仅可以作为沉积区，而且可以作为沉积物的通道，由此沉积物可以输送到沉积中心区域。
During the period from Late Oligocene to Middle Miocene, the basin changed from rifting to depression, and the depositional area continued to expand in the Marine environment.
晚渐新世—中中新世，盆地逐渐由断陷转为断拗，沉积范围不断扩大，整体处于海相沉积环境。
According to researching the petrology of the Guanghua formation in Huoerqi area, the sedimentary facies and depositional environment were analyzed in this paper.
本文通过对霍尔奇地区光华组岩石学的研究，对光华组的沉积相、沉积环境进行了分析。
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