stratigraphic classification

• 地层划分

stratigraphic classification的用法和样例：

例句

1. This method provides a new idea to the zonation or classification of the Mesozonic formation that lacks obiological fossil data.
   该方法为缺少古生物化石数据的中生界地层划分提供一种新的思路。
2. On the basis of synthetic stratigraphic subdivision and subcorrelation, this paper has analysed the distribution of different sedimentary facies.
   在综合地层划分对比的基础上，分析了塔中地区中及上奥陶统不同沈积相的分布规律。