发布于：2025-07-06 06:01浏览量：198文/优校网
1.地层
2.地层学
1.the study of the origin, composition, and development of rock strata
2.the way in which rock strata are arranged, and the chronology of their formation
3.a section cut vertically through the Earth showing its different layers and allowing artefacts to be dated according to the layers in which they are found