岩石地层单元 meaning in Chinese

geolith

Thus , it is a significant new contribution on stratigraphy and palaeontology of carboniferous in lixian of the west qinling . ch . 1 lithostratigraphy 7 stratigraphical sections of the carboniferous has been described based on the features of development , distribution , petrology and facies of strata , the carboniferous in this area can be further subdivided into secondary stratigraphical regions
岩石地层学研究通过对研究区7条剖面的测制和研究，依据地层的发育、分布特征和岩性、岩相特征，进行了地层划分和对比；在岩石地层单元的划分中，对前人在该区的划分方案进行了清理和细分。