The dissertation is about the Jianmenguan scenic area stratum section, late Jurassic depositional system and sedimentary sequence, about the qualification and the process of being scenic.
本文研究了四川省剑门关景区的地层剖面、晚侏罗世的沉积环境和沉积体系以及剑门关景区景观的成景。
The age of coal-bearing stratum of Wangxidong used to be regarded as Jurassic system .
河北省蔚县王喜洞村附近有含煤地层零星出露，以往地质资料多定为侏罗系。
Sediment cover consists of Trias, Jurassic, Tertiary and Qaternary, but Jurassic is the mainly exploited stratum.
盆地沉积盖层由中生界三叠系、侏罗系、新生界第三系、第四系组成，侏罗系是其主要勘探目的层。
The formation mechanism of gas is analyzed in the paper, the majority of gas derives reservoir oil degradation gas, the minority derives the biogenic methane in Jurassic coal stratum .
分析了该天然气的成因，指出它主要是来自储层原油的菌解，另外还有侏罗系浅部煤系地层生物气的贡献。
Oil of Jurassic and Cretaceous stratum in South central section comes from Wuerhe hydrocarbon source rock, and belongs to the mature crude oil.
中南段侏罗系和白垩系的油属于偏腐殖型成熟原油，来自乌尔禾组烃源岩。
Oil of Jurassic and Cretaceous stratum in South central section comes from Wuerhe hydrocarbon source rock, and belongs to the mature crude oil.
中南段侏罗系和白垩系的油属于偏腐殖型成熟原油，来自乌尔禾组烃源岩。
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