DEPOSITIONAL CHARACTERISTICS AND NONSYNCHRONISM TECTONIC MOVEMENT OF BAIGANG FORMATION IN EASTERN DEPRESSION OF BAISE BASIN
Junxing Zhao, Hongde Chen
Abstract
Junxing Zhao, Hongde Chen
Abstract
The studies of the depositional characteristics showed that there are two different sedimentary systems in Baigang Formation in the eastern depression of Baise basin. Depositional response record is closely related with structure activity. In early and middle stages of Baigang period,progradation occurred in the southern delta because of regional uplifting. When entering late stage,progradation took place in the northern fan-delta as the structural activity in the south was relatively stable compared with a strong structural activity in the north.The structural activity in the whole basin showed obvious nonsynchronism in different side of Baise basin.
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The studies of the depositional characteristics showed that there are two different sedimentary systems in Baigang Formation in the eastern depression of Baise basin. Depositional response record is closely related with structure activity. In early and middle stages of Baigang period,progradation occurred in the southern delta because of regional uplifting. When entering late stage,progradation took place in the northern fan-delta as the structural activity in the south was relatively stable compared with a strong structural activity in the north.The structural activity in the whole basin showed obvious nonsynchronism in different side of Baise basin.
Key concepts: Sedimentary depositional environment, Progradation, Structural basin, Geology, Sedimentary rock, Delta, Tectonics, Paleontology