鉄てつ盤ばん層そう

noun

iron pan

A hard, impermeable layer of soil cemented by iron oxides, often found in podzolic or lateritic soils. Technical term used in geology and soil science.

• この地ち域いきの土ど壌じょうには、深ふかさ50センチほどのところに鉄てつ盤ばん層そうが形けい成せいされている。

  In the soil of this region, an iron pan has formed at a depth of about 50 centimeters.