Acta Scientiarum Naturalium Universitatis Pekinensis

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Time Characteristics of Tectonic Evolution

WANG Jianjun, QIAN Xianglin   

  1. Department of Geology, Peking University, Beijing, 100871
  • Received:1997-04-23 Online:1998-07-20 Published:1998-07-20


王建君, 钱祥麟   

  1. 北京大学地质学系,北京,100871

Abstract: The implication of tectonic cycle in terms of plate tectonics theory is totally different from the one in early knowledge, which laid stress on uncomformity. The picture of tectonics evolution that emerges from the orogeny history study of the Phanerozoic Tethyside system and Precambrian block in Asia is one of a harmony. The continent crust demonstrated an original character of plate tectonics in the earth's early stage. The co-orogeny and post-orogeny deforming show a continuous character. Large-scale strike-slip faults play significant roles in course of tectonic evolution, since they regulate the gradual tectonic progress, and which is identified obviously in Northwest China and Tethyside system. Examining the matter from the view of global tectonics, the concept of orogenic episode is unavailable. The orogeny event, such as Caledonian, Hercynian, and Alpine cycle can't be viewed as a dependent phase in geological succession, since the latter is a continuous one.

Key words: tectonic cycle, homogeneous deforming, plate tectonics, the Tethyside, strike-slip faults

摘要: 板块构造理论中的构造旋回含义与早期经典的强调以不整合为基础的认识不同。对亚洲显生宙特提斯演化和前寒武纪地块及造山历史的分析表明,构造演化是一个均变过程,地质历史早期大陆地壳已显示具有板块构造基本模式特征。板内同造山和造山后变形具有连续性,其中大型走滑断裂的作用相当明显,调整着构造连续演化的统一进程,这在特提斯和中国西北地区表现明显。加里东、海西和阿尔卑斯等经典造山运动或旋回的阶段性特征不复存在。

关键词: 构造旋回, 均变, 板块构造, 特提斯, 走滑断裂

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