冲绳海槽是一个构造运动至今仍比较活跃的地区。对于它的论述,在国外、尤其是在日本,已发表过相当数量的专著,最近在我国,也有不少人根据自己的调查成果,写了一些文章。所有这些论著,不管对冲绳海槽的生成时间及其他过程有多大争执,可以说是百分之百的立足于板块构造假说。 板块构造假说认为,海沟、岛弧及弧后盆地,就其生成和演化来说是一个体系,一般称之为沟弧盆系。就是说,由于大洋板块向大陆板块下面消亡而产生了海沟,并在大陆板块平行于海沟的一定距离内生成岩浆岩带。如果在岩浆岩带的后方,由于造成新洋壳的岩浆上涌而形成了新的海盆,从而把其前后的大陆部分分开,被分隔开来的大陆部分就成为岛弧,新的海盆就被称为弧后盆地,于是就形成了沟弧盆系。如果只有大洋板块向大陆板块下面的消亡作用,而没有把大陆板块分隔开来的新的海盆生成,就形成太平洋东岸那种只有海沟和山系(相当于岛弧)的另一种太平洋型大陆边缘。这些应该是板 Okinawa Trough is a tectonic movement is still relatively active areas. For its discourse, a considerable number of monographs have been published abroad, especially in Japan. Recently, in our country, many people wrote some articles based on their own investigations. All of these treatises, no matter how controversial the timing of the formation of the Okinawa Trough and other processes, can be said to be a hundred percent based on the plate tectonics hypothesis. Plate tectonics hypothesis suggests that trenches, island arcs and backarc basins are a system of their formation and evolution and are generally referred to as trench-arc basin systems. That is to say, because of the disappearance of the oceanic plate beneath the continental plateau, the trenches are generated and the magmatic rocks are formed within a certain distance of the continental plate parallel to the trench. If, after the magmatic rock belt, the new sea basin was formed due to the upwelling of the magma that created the new oceanic crust, the continental part of the continent was separated by the separation of the anterior and posterior continental parts. The new ocean basin Known as the back arc basin, then formed a trench arc basin system. If only the ocean plate is extinct beneath the continental plate without the formation of a new basin that separates the continental plates, it will form another type of Pacific ocean that has only trenches and mountain systems (equivalent to island arcs) in the eastern Pacific Continent edge. These should be boards