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边缘盆地环境的起源与演化目前普遍认为,大多数边缘盆地是经由多少与洋中脊扩张中心产生新洋壳相类似的扩张作用形成的。Karig(1971)将扩张盆地划分为活动的与不活动的两类。活动盆地现时正在经历着形成新洋壳的扩张过程,例如,汤加、克马德克、马里亚纳、小笠原、新赫布里底以及斯科舍岛弧系的弧后区。不活动盆地是在过去扩张而成的,据地壳热流可进一步分为两类。
The Origin and Evolution of the Marginal Basin Environment It is generally accepted that most of the marginal basins are formed by a number of similar expansions that produce new oceanic crusts in the mid-ocean ridge expansion centers. Karig (1971) divided the expanding basin into two types, active and inactive. The activity basins are now experiencing the expansion that led to the formation of the new oceanic crust, such as the arc backcountry of the Tonga, Croat, Mariana, Ogasaviah, Neo-Hebrides, and Scotia Islands. Inactive basins were expanded in the past, and the crustal heat flow can be further divided into two categories.