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引言在大地构造学中常常疑难着人们的问题是这样一些问题:引起地壳运动的原因若何;地槽向陆台演化的实质是什么;造陆运动转变为造山运动的物理条件与力学情况怎样;海
INTRODUCTION In the tectonics of the earth, it is often problematic to ask people questions such as: what is the cause of the crustal movement; what is the essence of the evolution of the trough to the landform; what are the physical conditions and mechanics of the conversion of the land-building movement to the orogenic movement; sea