Contains

• clay

  A very fine-grained soil that is plastic when moist but hard when fired.

• clay

  Water soaked soil; soft wet earth.

• loam

  A rich soil consisting of a mixture of sand and clay and decaying organic materials.

• sand

  A loose material consisting of grains of rock or coral.

• mold

  Loose soil rich in organic matter.

• humus

  Partially decomposed organic matter; the organic component of soil.

• gumbo

  Any of various fine-grained silty soils that become waxy and very sticky mud when saturated...

• bog soil

  Poorly drained soils on top of peat and under marsh or swamp vegetation.

• bole

  A soft oily clay used as a pigment (especially a reddish brown pigment).

• marl

  A loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer...

• clunch

  Hardened clay.

• gilgai soil

  Soil in the melon holes of Australia.

• podzol

  A soil that develops in temperate to cold moist climates under coniferous or heath vegetation;...

• indurated clay

  Hardened clay.

• tundra soil

  A black mucky soil with a frozen subsoil that is characteristic of Arctic and subarctic...

• regosol

  A type of soil consisting of unconsolidated material from freshly deposited alluvium or...

• residual soil

  The soil that is remaining after the soluble elements have been dissolved.

• Indian red

  A red soil containing ferric oxide; often used as a pigment.

• subsoil

  The layer of soil between the topsoil and bedrock.

• topsoil

  The layer of soil on the surface.

• fuller's earth

  An absorbent soil resembling clay; used in fulling (shrinking and thickening) woolen...

• alluvial soil

  A fine-grained fertile soil deposited by water flowing over flood plains or in river...

• laterite

  A red soil produced by rock decay; contains insoluble deposits of ferric and aluminum ...

• prairie soil

  A type of soil occurring under grasses in temperate climates.

• silt

  Mud or clay or small rocks deposited by a river or lake.

• till

  Unstratified soil deposited by a glacier; consists of sand and clay and gravel and boulders...

• desert soil

  A type of soil that develops in arid climates.

• caliche

  Crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid...

• loess

  A fine-grained unstratified accumulation of clay and silt deposited by the wind.

• sedimentary clay

  Clay soil formed by sedimentary deposits.

• wiesenboden

  A dark meadow soil rich in organic material; developed through poor drainage in humid...