early-middle Jurassic的意思|示意

Basin evolution in ne China goes through four stages: early Jurassic rift basin, middle-late Jurassic partitioned foreland basin, late late Jurassic-Cretaceous rift basin and Cenozoic rift basin.

东北地区中新生代盆地演化经历早侏罗世裂陷盆地、中晚侏罗世分割式前陆盆地、晚侏罗世末期至白垩纪裂谷盆地及新生代裂谷盆地四个演化阶段。

The early to middle Jurassic coal-bearing deposition is mainly consisted of fluvial or lakeshore, estuarine delta facies, lacustrine facies and slough facies.

蔚县煤田早中侏罗世含煤沉积，主要由河流或湖滨河口三角洲相、湖泊相、泥沼相组成。

The Early-Middle Jurassic strata were probably deposited in an extensional basin above the Lapeiquan fault.

早中侏罗世地层可能为拉配泉断裂之上的伸展盆地沉积。

The northern edge in Qaidam Basin is one of the three hydrocarbon bearing areas in the basin. Its source rock is the early and middle Jurassic coal measures.

柴达木盆地北缘是柴达木盆地三大油气区之一，其源岩为早、中侏罗世煤系地层。

The stratigraphic distributions of Early Jurassic, Middle Jurassic and Late Jurassic in Qaidam Basin are greatly different. The deposit center had two times of great transpositions.

柴达木盆地早、中、晚侏罗世地层分布的变化较大，其沉积中心经历了自西北向北、再向东北的两次大迁移过程。

It was rift basin from Early Middle Jurassic to Early Creaceous and squeezed sag basin since Cenozoic.

早、中侏罗世—早白垩世为拉张盆地，第三纪以来为挤压坳陷盆地。