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羌塘盆地侏罗系为碳酸盐岩沉积和碎屑岩同时发育的混积型盆地 ,以碳酸盐岩沉积为主。古构造及构造事件对盆地的沉积演化起着决定性的控制作用。不同时期 ,盆地经历了四次海平面的升降变化 ,古气候、古水深、古生态也随之改变 ,各期沉积相呈继承性发育 ,在整个侏罗系沉积时期中央隆起始终为羌塘盆地的主要物源区。根据羌塘盆地侏罗系古地理特征及沉积演化模式 ,建立了适合于本区的侏罗系综合沉积模式。
The Jurassic in the Qiangtang basin is a mixed-type basin where carbonate rocks and clastic rocks developed at the same time, mainly composed of carbonate rocks. Paleotectonic and tectonic events play a decisive role in controlling the sedimentary evolution of the basin. In different periods, the basin underwent four sea-level changes. Paleoclimate, palaeocurrent depth and paleoecology also changed. The sedimentary facies of each period showed successional development. During the whole Jurassic sedimentation, the central uplift was always the Qiangtang basin The main source area. According to the Jurassic paleogeographic characteristics and sedimentary evolution patterns of the Qiangtang Basin, a comprehensive Jurassic sedimentary model suitable for this area was established.