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基于地幔软流圈不断产生高温气体的事实和气体压力随密度和温度而变的特性，提出：洋板（海洋岩石圈部分）随其下高温气体积聚增压而逐渐上隆，最后会从弯张应力最大的中部断裂并弹性回缩；熔岩随气体喷出楔入裂缝，使洋板保持拱隆状并使其下气体压力骤降；洋板因自重下沉并产生巨大推力，使相邻大陆向两旁分离或将洋板边缘推入软流圈而熔融；楔入的熔岩形成新洋板和密闭条件使高能气体又重新积聚，旧洋板向两旁推移。这一过程的往复进行即形成海底扩张和大陆漂移。并认为陆板（大陆岩石圈部分）薄化是使其分裂而开始海底扩张的原因。由概化力学模型进行验算所得的洋脊隆起高度、洋脊隆起形状、洋脊在水平面上的分布规律和海底扩张的运动规律等，都与实际情况相符。
Based on the fact that the mantle asthenosphere continuously produces high-temperature gas and the pressure of the gas varies with density and temperature, it is proposed that the oceanic plate (marine lithosphere) gradually escalates due to the accumulation and accumulation of high-temperature gas under it, The largest middle stress of the tensile stress and elastic retraction; lava with the gas jet wedged cracks, so that the ocean plate to maintain the arch and make its gas pressure plummeted; ocean plate sinking due to their own weight and generate huge thrust so that the adjacent The continent separates to the sides or pushes the edge of the ocean plate into the asthenosphere and melts. The wedged lava forms a new ocean plate and seals the re-accumulation of high-energy gas, and the old ocean plate slides to both sides. The reciprocation of this process led to the expansion of the seabed and the continent drift. It is also believed that the thinning of the continental plate (the continental lithosphere) is the reason for its fragmentation to begin the expansion of the seabed. The height of the ridge, the shape of the ridge, the distribution law of the ridge on the horizontal plane and the law of movement of the seafloor are all consistent with the actual situation.