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:
“My dwelling was small, and I could hardly entertain an echo in it; but it seemed larger for being a single apartment and remote from neighbors. All the attractions of a house were concentrated in one room; it was kitchen, chamber, parlor, and keeping-room; and whatever satisfaction parent or child, master or servant, derive from living in a house, I enjoyed it all.”
—Henry David Thoreau (1817–1862)
“He looked as if he wished to rive new war material out of the wombs of the mothers.”
—Anonymous. Quoted in Ellen Key, War, Peace and the Future, ch. 9 (1916)