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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 
shield volcano
Earth science; Geology
A volcano in the shape of a flattened cone, broad and low, built by very fluid flows of basaltic lava.
Sif Mons
Earth science; Geology
A large shield volcano on Venus (similar to Hawaii or Olympus Mons). Its dark central caldera, which may contain pools of lava, is surrounded by extensive flow features that seem ...
silicates
Earth science; Geology
A compound whose crystal structure contains SiO 4 tetrahedra, either isolated or joined through one or more of the oxygen atoms to form groups, chains, sheets, or three ...
silicic volcanism
Earth science; Geology
Said of silica rich igneous rocks or magma, with silica contents 65%.
single chains
Earth science; Geology
A class or structural type of silicate characterized by the linkage of the SiO 4 tetrahedra into linear chains by the sharing of oxygens. In a simple chain, e.g. pyroxenes, two ...
single element minerals
Earth science; Geology
A mineral composed of a single substance that cannot be decomposed into other substances except by radioactive decay.
sinkholes
Earth science; Geology
A circular depression in a karst area. Its drainage is subterranean, its size is measured in meters to tens of meters, and it is commonly funnel shaped.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)