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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > geology > soil parent materials
Preferred Term:

soil parent materials

Definition:
The unconsolidated, chemically weathered mineral or organic matter from which the upper layers (i.e., where living roots are primarily found) of soil develop.
Concept Schemes:
NALT Full
NALT Core
Broader Concept:
geology
Related Concepts:
URI:
https://lod.nal.usda.gov/nalt/42771
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2017-07-06
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