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上二迭统是我国南方最重要的含煤地层,但是目前对它的划分与对比却很不统一,更缺少系统的全面总结,造成了地质勘探工作的不少困难. 本文总结了解放前后积累起来的大量实际资料,就华南上二迭统的划分提出了新方案;经过分析与比较,初步建立起一套华南各地区上二迭统分层单位相互对比关系.与此同时,作者澄清了一些旧有的认识,并对某些理论性问题提出了新的解释. 新建立的地层单位中,梅仙岭段和轿子山段应是煤田地质勘探的主要对象;这两段地层的陆相或海陆交替相分布地区,应是煤田群集的区域. 孤峰段、大垅段内富产菊石化石,沉积特征非常明显,无疑可作为判别地层层序的良好标志层. 上二迭统内唯一不含煤层的是长兴阶,其分布只及于苏、浙、赣、闽四省的部分地区;本文指出,华南大部分地区的所谓“长兴灰岩”都是轿子山段或大垅段的误解.这个重要的发现,当为今后研究我国二迭纪地层及古地理等方面开辟一新的途径.
The Upper Second Permian is the most important coal-bearing strata in the south of our country, but its division and comparison are not uniform at present, and it lacks systematically and comprehensive summary, which has caused a lot of difficulties in geological exploration work.This paper summarizes the accumulation of before and after liberation A great deal of actual data are collected to propose a new plan for the division of Upper Permian in South China. After analysis and comparison, a set of preliminary correlation between Upper Permian stratification units in different regions of South China has been established. At the same time, Some old understandings and put forward some new explanations for some theoretical issues.Meshiling and Jiaozishan sections of the newly formed strata should be the main objects of geological exploration in coalfields, Or sea and land alternate phase distribution area, should be the coal cluster area.Goufeng section, the Daqu section rich in ammonites fossils, sedimentary characteristics is very obvious, undoubtedly can be used as discriminating stratigraphic sequence of a good marker layer. The only coal-free layer is Changxing, which is distributed in parts of Jiangsu, Zhejiang, Jiangxi and Fujian provinces. This paper points out that the so-called “Changxing limestone” in most parts of South China is either the Jiaozishan section or the Daqu section Misunderstanding This important discovery opens up a new avenue for the study of the later Permian stratigraphy and palaeogeography in China.