Parent Material

In soil science, parent material is the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form. Soils typically inherit a great deal of structure and minerals from their parent material, and, as such, are often classified based upon their contents of consolidated or unconsolidated mineral material that has undergone some degree of physical or chemical weathering and the mode by which the materials were most recently transported.

Read more about Parent Material:  Consolidated, Unconsolidated, Climate and Weathering

Famous quotes containing the words parent and/or material:

    The unjustifiable severity of a parent is loaded with this aggravation, that those whom he injures are always in his sight.
    Joseph Addison (1672–1719)

    A material resurrection seems strange and even absurd except for purposes of punishment, and all punishment which is to revenge rather than correct must be morally wrong, and when the World is at an end, what moral or warning purpose can eternal tortures answer?
    George Gordon Noel Byron (1788–1824)