geo-, ge- +
(Greek: earth, land, soil; world; Gaia (Greek), Gaea (Latin), "earth goddess")
2. Referring to chemical reactions involving earth materials; such as, soil, rocks, and water.
3. The chemistry of the composition and alterations of the solid matter of the earth or a celestial body.
The study of the chemistry of the earth includes the study of the rocks and sediments that constitute the solid earth; as well as, the fluids of the oceans, inland waters, and atmosphere.
Geochemistry is based on a foundation of other sciences, including chemistry, geology, physics, and biology. This field of research includes the study of the movement, or flux, of chemical elements through the solids and fluids of the earth.
2. The time sequence of the earth’s history as governed by geological events.
3. The science of dating and the study of time in relation to the earth's history as revealed by geological data.
2. Absolute geochronology, in which events are assigned (approximate) dates in relation to the present instead of to other events.
3. Measurement of geologic time, as through isotopic-radioactive decay.
2. A part of the earth's crust which is subjected to downward warping during a large span of geological time.
2. The process of assigning geographic identifiers (for example, codes or geographic coordinates expressed as latitude-longitude) to map features and other data records; such as, street addresses.
You can also geocode media; for example, where a picture was taken, IP addresses (Internet Protocol address or a numerical label), and anything that has a geographic component.
With geographic coordinates the features can be mapped and entered into Geographic Information Systems.
2. An envelope of ionized gases, mainly hydrogen, which encircles the earth to about 15 earth radii and emits Lyman-alpha radiation in the presence of sunlight which refers to a radiation emitted by hydrogen associated with the spectral line in the Lyman series (group of lines in the ultraviolet spectrum of hydrogen) whose wavelength is 121.5 nanometers.
2. Of or pertaining to the predominant influence of the natural environment on humans.
3. Relating to times or conditions in which land expands or continents enlarge.
2. A white or greenish-white, opaque, metallic, monoclinic mineral usually occurring in massive, granular form, having a specific gravity of 6.4 and a hardness of 2.5 on the Mohs scale.
A scale for classifying minerals based on relative hardness, determined by the ability of harder minerals to scratch softer ones.
The scale includes the following minerals listed in order from the softest to the hardest: