一、地层学的意义 地层学是地质学的重要基础学科之一。地层划分、对比的概念和理论是地层学的精髓。地层划分的概念在根本上决定地层学研究的范畴、内容和方法。不同的划分概念又是不同的哲学观点在地层学这门自然科学中的反映。 地层划分、对比的概念最集中地体现在人们所制定的地层规范中,而地层规范是一般指导地层实践(地方或区域地质测量、矿产地质调查与勘探、资源开发以及编制有关的地 First, the significance of stratigraphy Stratigraphy is one of the important basic disciplines in geology. Stratigraphic division, the concept of contrast and theory is the essence of stratigraphy. The concept of stratigraphic division basically determines the category, content and method of stratigraphic study. The concept of different divisions is also a reflection of different philosophical perspectives in this natural science of stratigraphy. The concept of stratigraphic division and contrast is most concentrated in the stratigraphic norms laid down by people, and stratigraphic norms are general guidelines for stratigraphic practice (local or regional geological surveys, mineral geological surveys and exploration, resource development and compilation of relevant land