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stratigraphic classification 地层划分
stratigraphic section 地层剖面；地层剖面图
stratigraphic trap 地层圈闭；地层封闭
stratigraphic column 地层剖面；地层柱状图
The glauconite sandstone is a persistent stratigraphic unit.
海绿石砂岩是一个稳定的地层单元。
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The component layers have the geometry of stratigraphic units .
成分层具有地层单元的几何形态。
Geologic time unit, rock stratigraphic units and time stratigraphic unit.
地质年代单位、岩石地层单位、年代地层单位。
Rather heterogeneous and equivocal stratigraphic definitions were found during the revision of existing literature.
UNESCO: Dublin Core
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