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:
“This is the hope of many adolescent girls—to capture a parent’s heart with love for them as they are, as people. They reject the notion of being loved just because they are the child of the parent. They want the parent to fall in love with them all over again, because being new, they deserve a new love.”
—Terri Apter (20th century)
“Science has done great things for us; it has also pushed us hopelessly back. For, not content with filling its own place, it has tried to supersede everything else. It has challenged the super-eminence of religion; it has turned all philosophy out of doors except that which clings to its skirts; it has thrown contempt on all learning that does not depend on it; and it has bribed the skeptics by giving us immense material comforts.”
—Katharine Fullerton Gerould (1879–1944)