かぎそう
鍵層
1. key bedGeology
2. Key bedIn geology, a key bed is a relatively thin layer of sedimentary rock that is readily recognized of the basis of either its distinct physical characteristics or fossil content and can be mapped over a very large geographic area. As a result, a key bed is useful for correlating sequences of sedimentary rocks over a large area.
Read “Key bed” on English Wikipedia
Read “鍵層” on Japanese Wikipedia
Read “Key bed” on DBpedia
Read “Key bed” on English Wikipedia
Read “鍵層” on Japanese Wikipedia
Read “Key bed” on DBpedia
鍵層 【けんそう】
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