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本文运用波浪状镶嵌构造观点,对“汾渭地堑”的形成机制与演化过程进行了分析,认为其形成和发展都受环太平洋和地中海这两大地壳波浪系统周期性的交替活动所控制。它是一个在两个波系不同的交替期中分步骡形成和发展起来的“复合地堑”。两大地壳波浪系统的这种交替活动至今仍控制着“地堑”内的地震活动性。
In this paper, the formation mechanism and evolution of “Fenwei Graben” are analyzed by using the wavy tessellation. It is believed that the formation and development of the Fenghuang graben are controlled by the cyclical alternation of the wave systems in the two major crusts of the Pacific Rim and the Mediterranean. It is a “composite graben” formed and developed by step mules in two different alternations of two wave systems. This alternation of the two major crustal wave systems still controls the seismicity within the “graben.”