Hume is a
soil type that is well drained and slowly
permeable. Hume is formed from the
erosion of
shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...
and
sandstone. Hume soils occur naturally on slopes and
alluvial fans.
See also
*
Loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–sil ...
Notes and references
Hume series description
Pedology
Types of soil
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