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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 > Geology 
crystallization
Earth science; Geology
Growth of minerals (crystalline solids) from a liquid or gas.
dacite
Earth science; Geology
Dacite lava is most often light gray, but can be dark gray to black. Dacite lava consists of about 63 to 68 percent silica (SiO2). Common minerals include plagioclase feldspar, ...
debris avalanche
Earth science; Geology
A rapid and unusually sudden sliding or flowage of unsorted masses of rock and other material. As applied to the major avalanche involved in the eruption of Mount St. Helens ...
debris flow
Earth science; Geology
A type of landslide made up of a mixture of water-saturated rock debris and soil with a consistency similar to wet cement. Debris flows move rapidly downslope under the influence ...
deformation
Earth science; Geology
General term for folding, faulting, and other processes resulting from shear, compression, and extension of rocks.
delta
Earth science; Geology
A fan-shaped deposit that forms where a stream enters a lake or ocean and drops its load of sediment.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)