37 Terms
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Geology
The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.
Industry: Earth science
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Geology
Chemical sedimentary rock
Earth science; Geology
A sedimentary rock made up of chemical sediments. Example: rock salt.
Deimos
Earth science; Geology
The irregularly shaped, dark coloured moon of Mars. Deimos is smaller than its companion moon, Phobos. Both orbit very close to Mars, have short periods of revolution (1.3 days for Deimos) and are ...
Dendritic river systems
Earth science; Geology
Networks of interconnecting dry river beds that exhibited dendritic (from the Greek, meaning "treelike") drainage patterns characteristic of water-carved channels.
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 undifferentiated.
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.
Dactyl
Earth science; Geology
A small asteroid which measures 1.6 x 1.4 x 1.2 km and orbits a larger asteroid, Ida. Dactyl is the first evidence that asteroids may have tiny moons.
Deflation basins
Earth science; Geology
A topographic basin resulting from the removal of material from a beach, desert or other land surface by wind action.
