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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
half-life
Earth science; Geology
The time required for one-half of the atoms of a radioactive substance to decay.
hardness
Earth science; Geology
Resistance of a mineral to scratching, determined on a comparative basis by the Mohs scale.
harmonic tremor
Earth science; Geology
Continuous rhythmic earthquakes in the Earth's upper lithosphere that can be detected by seismographs. Harmonic tremors often precede or accompany volcanic eruptions.
hawaiian eruption
Earth science; Geology
Hawaiian" eruptions may occur along fissures or fractures that serve as linear vents, such as during the eruption of Mauna Loa Volcano in Hawaii in 1950, or they may occur at a central vent such as ...
headland
Earth science; Geology
Headlands are projections of land that stick out into a sea or lake.
Holocene
Earth science; Geology
An epoch of the Quaternary Period beginning 10,000 years ago and continuing today.