Dark earth
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In geology and archaeology, dark earth is a substratum, up to 1 metre thick, that indicates settlement over long periods of time. The material is high in organic matter, including charcoal, which give
Restored blackhouse in a museum on Trotternish, Skye. There is no chimney on this house and the thatch becomes impregnated with soot. When the roof is replaced, the waste thatch can add fertility to the soil, resulting in dark earth.
Chernozem
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Chernozem, also called black soil, black earth, dark earth, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus and high percentages of phosphorus and ammoni
Dark earth
…added fertility. London's dark earth was originally called 'black earth' by archaeologists. It was renamed 'dark earth' because of confusion with the chernozem (black earth soils in Russia), whose dark colour is traditionally (not universally) thought to come from humus, rather than soot. In the Hebrides, it…
Mollisol (USDA-NRCS)