Horizons
提供: 広島大学デジタル博物館
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- 地層,層準,層位(日本語)
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Definition
Glossary of "Life (9th ed.)" by Sadava et al. (2011)
- The horizontal layers of a soil profile, including the topsoil (A horizon), subsoil (B horizon) and parent rock or bedrom (C horizon).