一、板块总是运动着的板块学者将全球分为七大板块,它们又分为许多小板块。地球的刚性外壳(岩石圈)破裂成镶嵌状的大洋和大陆板块,这些板块能够在地幔最上层的塑性软流圈上滑动。板块厚度约80公里,彼此发生相对的运动,运动速率为10—130毫米/年。运动的形式既不对称又很复杂。一旦我们对大板块的了解越来越多,就 First, the plates are always moving plate scholar will be divided into seven parts of the world, they are divided into many small plates. The Earth’s rigid crust (lithosphere) breaks into inlaid oceanic and continental plates that slide over the plastic asthenosphere in the uppermost mantle. Plate thickness of about 80 km, the relative movement occurs with each other, the movement rate of 10-130 mm / year. The form of movement is neither symmetrical nor complex. Once we know more about the big plates, then