Consensus on a New Definition for Soil?
2017
Logsdon, Sally | Schoeneberger, Philip | Kremer, Robert
Unconsolidated material is not necessarily soil. If such material is without biological input or modification, such as the presence of at least minimal horizons other than unweathered parent material, it has not traditionally been recognized as soil. Unconsolidated material can hold liquids, gases, etc. and yet is considered to be raw geologic material (not soil) until pedologic alteration becomes evident. Lack of biological material or evidence of biological alteration in some form (past or present) precludes “soil” on extraterrestrial bodies.
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