Fragipan
Fragipan :
A dense layer of soil, containing silt and sand but no organic matter and little clay, whose extreme hardness and impermeability are due primarily to compaction. compare caliche, claypan, hardpan
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A dense layer of soil, containing silt and sand but no organic matter and little clay, whose extreme hardness and impermeability are due primarily to compaction. compare caliche, claypan, hardpan