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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 
differentiated
Earth science; Geology
Refers to meteorites that are differentiated, i.e., they have igneous textures because they were once molten. All other meteorite types (achondrites, stony-irons and irons) are ...
divergent boundry
Earth science; Geology
A boundary between two crustal plates that are moving apart, with new oceanic type lithosphere being created in the seam. Also, accreting plate boundary.
domes
Earth science; Geology
An uplift or anticlinal structure, circular or elliptical in outline, in which rocks dip gently away in all directions. Doming results in extension of the crust above, and leads ...
double chain
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 double chain or band, e.g. ...
drumlins
Earth science; Geology
A low, smoothly rounded, elongate hill of compact glacial till, or rarely other kinds of drift, built under the margin of the ice and shaped by its flow or carved out of an older ...
dunes
Earth science; Geology
A mound, ridge, or hill of wind-blown sand, either bare or covered with vegetation.
eistla regio
Earth science; Geology
A region on Venus that is centered at 12.3 degrees north latitude, 8.3 degrees east longitude, with an area 160 kilometers (96 miles) by 250 kilometers (150 miles). Its prominent ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)