bog earth

Noun

uncountable

A soil composed mainly of silex and partially decomposed vegetable fiber.

Japanese Meaning

燧石を主成分とし、部分的に分解された植物繊維を含む土壌

The archaeologists found layers of bog earth preserving ancient timber and pollen.

考古学者たちは、古代の木材や花粉を保存していた珪質の泥炭土の層を発見した。

Sense（1）

A soil composed mainly of silex and partially decomposed vegetable fiber.