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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Soil science 
chernozem
Earth science; Soil science
A zonal great soil group consisting of soils with a thick, nearly black or black, organic matter-rich A horizon high in exchangeable calcium, underlain by a lighter colored ...
aquepts
Earth science; Soil science
Inceptisols that are saturated with water for periods long enough to limit their use for most crops other than pasture or woodland unless they are artificially drained. Aquepts ...
discontinuity
Earth science; Soil science
Any interruption in sedimentation, whatever its cause or length, usually a manifestation of nondeposition and accompanying erosion.
marl
Earth science; Soil science
Soft and unconsolidated calcium carbonate, usually mixed with varying amounts of clay or other impurities.
histic epipedon
Earth science; Soil science
A thin organic soil horizon that is saturated with water at some period of the year unless artificially drained and that is at or near the surface of a mineral soil. The histic ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)