摘要:
黄河发育在阴山和秦岭两大纬向构造带之间,受到不同构造单元和大断裂的控制,在各个段落上构成了"沿黄断裂带"。黄河在不同构造的交汇处,形成了巨大的河道拐弯和一些独特的"喇叭型"构造。进入新构造运动时期,其活动仍然来停止,以致酿成了这些地带中强地震的不断发生。#br#文中对黄河中、下游的河道摆动和迁徒进行了论述,强调了新构造运动的作用,指出"禹王故道"受控于地质构造,是一条地壳破碎带,也是一条地震活动带。#br#本文指出,黄河大拐弯、喇叭型构造、"禹王故道"、黄河大支流的地震活动性构成了"沿黄地震带",这就为大地震的发生,提供了空间信息。
Abstract:
The Yellow River developed between Mt. Yinshan and Mt. Qinling tectonic zones with latitude direction. It was controlled by different str-uctural units and great faults, In some segments along this river, Yellow river fault zones formed. The bends of river and the distinctive ‘trumpet-shaped’ structure constructed at the junction of various structures. Even in the period of new tectogenesis, the tectonic activity did not stopped yet and the moderate strong earthquakes constantly took place in these zones. In this paper the author discussed the swing and the migration in the middle-lower reaches of Yellow river as well as the function of new tect-onic movement. It was pointed out that the old ‘King Yu’ course was controlled by geological structure. This old course was a rupture belt of crust and an active earthquake zone. The great bend, the trumpet-shaped structure, the old ‘King Yu’ course and the earthquake belt along major tributaries of this river composed the earthquake zone of Yellow river. This zone provided the space information for the occurence of strong earthquake. King Yu——the reputed founder of the Xia Dynasty (21st-16th century B. C.)
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