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十余年来,全球构造的核心课题是各期超级大陆的复原或再造。为了鉴别散布全球各地的克拉通、造山带及裂谷带是否具有亲缘关系,本文应用了地质DNA的概念。一个古老的陆壳块体必然会有许多独特的标志,类似于生物学领域的遗传基因,在母体分裂解体和离散之后被保留在子体之中。根据地质DNA的对比和异同,笔者确定华泰克拉通来源于Rodinia,并给出了其后续演化历程的路线图和时间表。与前人结论不同的是,华北地台、西伯利亚地台和劳伦古陆三者共同构成的古劳亚大陆不是Rodinia的一部分,而是与其并存的另一联合古陆。SWEAT设想的误区在于将落基山带代表整个北美,实际上就劳伦古陆和北美地台而言,落基山带只是一个外来移植地体。后者与华泰克拉通一样,均为Rodinia的组成部分。华泰与华北二克拉通的拼接,以及落基山带与北美地台的拼接,都是全球性的古劳亚与Rodinia构造拼接的组成部分。生物地层学的研究表明,此次拼接发生于536 Ma前后,这是形成真正超级大陆Pannotia的重大地质事件。寒武纪未期(510 Ma)Pannotia解体,原来的古劳亚大陆携带着华泰克拉通和落基山带,与古冈瓦纳大陆分离,并在其间的地域形成了南太平洋。直到奥陶纪晚期(440 Ma前后),古劳亚大陆分裂,华泰与华北二克拉通作为一个整体漂离加拿大地盾和北美内陆地台,同时形成北太平洋。所以,太平洋的形成不是原设想的720 Ma,而是510~440 Ma之后。
For more than ten years, the core issue of global structure is the recovery or reconstruction of supercontinent in each period. In order to identify the distribution of craton across the world, orogenic belt and rift zone are related, this article applied the concept of geological DNA. An ancient continental crust block must have many unique symbols, similar to those in the field of biology, that remain in the daughter after the mother splits and disintegrates. According to the comparison and similarities and differences of geological DNA, the author determines that Huatai Cratin originates from Rodinia, and gives a roadmap and timetable of its subsequent evolution. Unlike previous conclusions, the Gulau Asia formed by the North China Platform, the Siberia Platform and the Laurentian Continent is not part of Rodinia, but another co-existing ancient continent with it. The myth that SWEAT envisions is that the Rocky Mountains represent the entire North American region; in fact, the Rocky Mount is only a transplanted land for Laurentius and North American terraces. The latter, like Huatai Caraton, are all part of Rodinia. The splicing of Huatai and North China two carats, as well as the mosaic of the Rocky Mountain and North American terrains, are all part of the global construction of Goulaia and Rodinia. Biostratigraphic studies show that this splicing occurred around 536 Ma, a major geological event that led to the formation of the true supercontinent Pannotia. After the collapse of the Cambrian (510 Ma) Pannotia, the original Gulorat continent carried the Huatai Craton and the Rocky Mountain belt, separated from the Gondwana mainland and formed the South Pacific in the meantime. Until the Late Ordovician period (around 440 Ma), the Gulauya continent was divided and Huatai and North China two cratons drifted away from the Canadian Shield and the North American inland platforms as a whole, forming the North Pacific at the same time. Therefore, the formation of the Pacific is not the original idea of 720 Ma, but 510 ~ 440 Ma later.