The Presinian System in the area of Xiaoshan-Fuyang is composed of the marginal island arc volcanic rocks of Shuangxiwn Group in Middle Proterozoic Era and, the retroarc basin deposits and bimodal continental volcanic rocks of Heshangzheng Group.
萧山—富阳一带的前震旦系，分别由中元古代陆缘岛弧型双溪坞群火山岩、新元古代青白口纪河上镇群弧后盆地沉积和双峰式陆相火山岩组成。
Firstly, before the land passage is completed, the burden of the waterway passenger transport gets heavier since the demand of the transport between mainland and island keeps increasing with the development of the economy and industry in island.
在陆路通道建成前后，势必会给传统的陆岛水上客运造成一定的影响，主要表现在：首先，陆路通道建成前，由于岛屿地区的经济建设和产业发展对陆岛交通运输的需求将不断加大，这将进一步加重陆岛水上客运的负荷。
