According to the sedimentological evidences the paper believes that Qiangtang Basin was a continental marginal basin during middle Jurassic time and was at an extensional architectonic setting.

• 论文用沉积学证据论证了羌塘盆地中侏罗世时期的盆地性质为陆缘盆地，存在于伸展性的大地构造背景。