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一我们现在编制地层表,首先要作一个地层区划图。而地层区划图的编制主要是根据地层沉积环境,也就是地槽、地台的分布等古地理现象进行的。但是我们对地槽、地台概念的认识,还是有分歧的。地壳上的地层沉积有些地方比较厚,另一些地方则比较薄,而且较厚的地层往往成条带状分布,这是客观存在的事实,为地质工作者所都承认。这个沉积厚地层的长条带地区,地质工作者称之为地槽。问题是地槽是怎样形成?地槽的活动性质如何?以及地槽产生在什么地方?则是长期以来地质工作所探讨的对
As soon as we prepare the table of stratigraphy, we must first make a stratum zoning map. The stratigraphic zoning map is mainly based on sedimentary environment, that is, the trough, the distribution of platforms and other ancient geography phenomenon. However, we still have different opinions on the concept of earth trough and platform. Stratum deposits on the crust are thicker in some places and thinner in others, and thicker strata are often distributed in the form of strips. This is an objective reality and is acknowledged by geologic workers. This thick layer of sedimentary strip zone, geological workers called the trough. The question is how is the formation of the earth trough? What is the nature of the activity of the earth trough and where is the earth trough?