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东巽他-西班达弧(图1)代表了一种活动边缘,它受到包括澳大利亚西北边缘的斜向碰撞的影响。普遍认为它是较老的弧-陆碰撞带的一种现存模式。最初的主要争论是关于板块边界的表面径迹的位置和帝汶岛上主要构造单元的起源和侵位机制。有许多研究人员指出,表面径迹位于帝汶岛的北面。他们认为作为前陆盆地的帝汶海槽整个发育在澳大利亚克拉通的内部。可是,最新的研究指出,沿着爪哇海沟的板块接触带和主要的挤压变形带继续向东伸展而进入帝汶海槽。在演化的现阶段,帝汶岛西面的班达碰撞带与正向俯冲沟弧体系非常相似。班达造山带的地质和地球物理资料的综合结果显示出构造类型随时间的变化。碰撞复合体代表了一个向西变年轻的体系,该处向东渐增的变形在远离造山楔状体的前缘,逐渐被吸收。澳大利亚边缘的缩短作用配分于前增生体、亚增生体和反向冲断层。
The Tungtai-Westabond (Figure 1) represents an active margin that is affected by oblique collisions that include the northwest edge of Australia. It is generally accepted that it is an existing pattern of the older arc-continent collision zone. The initial major arguments were the location of surface tracks on the plate boundaries and the origin and emplacement mechanisms of the main tectonic units in Timor Leste. Many researchers pointed out that the surface track is located north of Timor Leste. They consider the Timor Trough as a foreland basin as a whole to develop inside the Australian craton. However, the latest research indicates that the plate contact zone along the Java trenches and the major crustal deformation zone continue to extend eastwards into the Timor Trough. At this stage of evolution, the Banda collision zone to the west of Timor-Leste is very similar to the system of forward subduction gully arcs. The combined results of the geologic and geophysical data from the Bandar orogenic belt show changes in tectonic type over time. The collision complex represents a system that is younger to the west, where the increasing eastward deformation gradually absorbs away from the front of the orogenic wedge. Shortening of the margins of Australia with pre-hyperplasia, sub-hyperplasia and reverse thrust.