lower-middle Jurassic的意思|示意

According to geological age, it may be divided into Upper Triassic coal-bearing formation and Lower-Middle Jurassic clastic rock formation.

根据它的地质时代，划分为上三叠统含煤建造和中下侏罗统碎屑岩建造。

Uranium mineralizations are hosted in the Middle-Lower Jurassic coal-bearing series.

下侏罗统含煤系是铀矿化赋存的有利部位。

The strata of Mesozoic and Cenozoic in the basin can be divided into three parts, Middle Jurassic (Longjiagou Formation ), Lower Cretaceous and Upper Miocene (Baode Formation ).

根据化石组合，龙家沟盆地的地层可划分为中侏罗统龙家沟组，上白垩统及上中新统保德组。

Several in-situ leachable sandstone-type uranium deposits are hosted in the Shuixigou Group, Middle-Lower Jurassic in the southern margin area of Yili basin.

伊犁盆地南缘中、下侏罗统水西沟群产有数个可地浸的砂岩型铀矿床。

According to the drilling results, the middle-lower Jurassic can be considered the main Mesozoic source rock.

钻井揭示，中—下侏罗统为中生界主要烃源岩。

The top boundary of Jurassic is delimitated between the lower and middle part of Datonghe Formation.

侏罗系上界暂定在大通河组下部与中部之间。