A material that is weathered to become the mineral part of the soil.
can include bedrock, alluvium or wind blown deposits
The unconsolidated and more or less chemically unweathered mineral or organic matter from which soil has developed.
the layer of very little weathering from which other soil layers develop
The original geologic material from which the horizons of soil are formed. This can be bedrock, sediments, windblown material or volcanic ash.
The unconsolidated and more or less chemical weathered mineral or organic matter from which soils develop by pedogenic (soil-related) processes.
The mineral matter from which soil is formed.
Material from which a soil or fill has been derived.
the unconsolidated organic and mineral material from which soil develops.
The source from which a given soil is chiefly derived, generally consisting of bedrock or sedimen
rock that has been broken down by either physical weathering, chemical weathering, or biological weathering
Inorganic, mineral base from which the soil is formed; usually consisting of regolith.
The source from which a soil is primarily derived, usually from unconsolidated bedrock, sediment, or organic material.
Substance(s) from which a soil forms.
The unconsolidated and more or less weathered mineral or organic matter from which a soil profile develops.
Disintegrated and partly weathered rock from which soil has formed.
The unconsolidated mass of rock material (or peat) from which the soil profile develops.
The earthy materials both mineral and organic-from which soil is formed.
The primary material (both mineral and organic) from which the soil was formed.
The rock from which a soil profile develops.
the mineral component of soils, commonly derived from igneous or metamorphic bedrock, volcanic flows or ashes, or sediments that have formed in place (i.e. ancient ocean beds); the unconsolidated organic and mineral material from which soil forms
The unconsolidated and more or less chemically weathered mineral or organic matter from which the solum of a soil is developed by pedogenic processes.
The unconsolidated organic and mineral material in which the soil forms.
The mineral or organic matter from which the upper layers of soil are formed. ( FS People's Glossary of Eco Mgmt Terms)
The mineral material from which a soil forms.
(soil parent material): The unconsolidated material, mineral or organic, from which the soil is developed by soil-forming processes.
The original state of the soil. The relatively unaltered lower material in soils is often similar to the material in which the horizons above have formed.
Parent material, in soil science, means the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form. Soils typically get a great deal of structure and minerals from their parent material. Parent materials are made up of consolidated or unconsolidated mineral material that has undergone some degree of physical or chemical weathering.