carboniferous period

基本解释

The new research is focused on the Carboniferous Period, when the supercontinent of Pangea was covered in tropical rainforests ruled by reptiles.
在30亿年前的石炭纪时代，大陆被热带雨林覆盖，并由爬行动物所统治。
The Guibei Mountain developed from the limestone and dolomite in the Carboniferous Period (about 362-290 million years ago). The rock strata grow horizontally with pure texture.
龟背山山体发育在石炭纪（距今约3亿6千2百万年至2亿9千万年）石灰岩和白云岩中。
There are great bifurcations as yet on the structural environment and on the evolution of the Xingmeng Paleozoic orogenic belt in Southeast Inner Mongolia during the Carboniferous Period.
内蒙古东南部古生代造山带在石炭纪时期的构造环境和构造演化，至今在认识上存在较大的分歧。