Li Xibing, Mai Guangrong, Kuang Jun, et al. PETROLEUM GEOLOGICAL CHARACTERISTICS AND OIL PROSPECTS IN CENTRAL JUNGGAR BASIN[J]. 1993, 14(1): 23-33.DOI: 10.11743/ogg19930104.
The basement of the hinderland of Junggar Basin consists of two layers
the Pre-cambrian crystalline and the Devonian-Carboniferous slightly metamorphic basement.From Permian to Quaternary
the hinderland experienced six structural-sedimental stages:1.platform marine basin;2.foreland marine basin;3.taphrogenic remnant marine basin;4.depressed continental basin;5.oscillation continental basin and 6.constriction continen-tal basin.Nine secondary structural units can be divided and Zhongguai-Dabasong
San-nan
Baijiahai
Muosuowan uplifts are favourable for hydrocarbon accumulation.The Permian Fengcheng(P
1
∫)
lower Wuerhe(P
2
ω)Formations and the Jurassiccoal measures(J
1+2
)are source beds in the area.Triassic-Permian traps formed in lateHercynian—Indo-China epoch received mainly oil and gas from Permian source rocksand belong to allogenic type;Jurassic traps formed in early Yenshan epoch received oiland gas from Permian and Jurassic source rocks