陈国达教授的“动定转化递进说”与黄汲清教授的“多旋回论”之争,是近年来我国大地构造学科范畴内的一场具有深远意义的学术争论。它是从讨论中国东部大地构造的性质开始的。陈氏认为:中国东部地区在中生代以后重新出现高度活动性的事实,表明地壳发展已进入了一个新的历史阶段。他认为地壳发展以如下不可逆的形式递进转化: Prof.Chen Guoda’s controversy over the “multiple cycles” of Prof. Huang Jiqing is a profound academic controversy in the field of geotectonics in China in recent years. It begins with a discussion of the nature of the tectonics in eastern China. Chen believes that the fact that eastern China re-emerged highly active after the Mesozoic shows that crustal development has entered a new historical stage. He believes that the crustal development is progressively transformed in the following irreversible manner: