geo-, ge- +
(Greek: earth, land, soil; world; Gaia (Greek), Gaea (Latin), "earth goddess")
This theory suggests that landscapes go through three stages of development (youth, maturity, and old age) and indicates that the rejuvenation of landscapes arises from tectonic uplift of the land.
In the "youthful stage", under the influence of tectonic uplifts, there appears a mountain relief, which is dissected through erosion (the washing out of rocks by rivers) into deep, narrow valleys and sharp-peaked ridges.
With the dissection by streams, the area would reach maturity and, ultimately, would be reduced to an old-age surface called a peneplain (gently undulating, almost featureless plain), with an elevation near sea level.
The model developed by Davis, though important in historical context, is currently considered only a first approximation.
Developments in the sciences of geology and geomorphology, especially the plate tectonics revolution of the 1960s and 1970s, have confirmed the preliminary nature of the model.
2. A computerized system which relates and displays data collected from a geographic entityto in the form of a map: A geographical information system overlays existing data with new information and displays it in color on a computer screen. It is used primarily to conduct analyses and make decisions related to geology, ecology, land use, demographics, transportation, and other domains, most of which relate to the human use of the physical environment.
Through this process of geocoding, the geographic data from a database is converted into images in the form of maps.
A geographical mile is a British unit of length equivalent to 1,853.18 meters (6,082 feet) , which was replaced by the international nautical mile in 1970.
It is also a unit of length in the US Customary System, used in air and sea navigation and equal to 6,076 feet or 2,025 yards (1,852 meters).
Arizona provides a geographic range for 13 different species of rattlesnakes.
2. The total area occupied by a population: Mr Straight asked the students to find out what groups of lifeforms would apply to the definition of geographic range.
3. The extreme distance at which an object or light can be seen when limited only by the curvature of the Earth and the heights of the object and the observer: The geographic range of light is dependent on the height of the light itself, the height of the observer's eyes, and the refraction of the atmosphere.
A geographical search can also be described as an orderly arrangement of lines in which an area is defined in relation to one or more geographical points on the Earth.
The scientific study of the surface of the Earth includes the topographical features of geographically important regions of the Earth.
2. The physical features of a region, area, or place: Geography usually refers to surface features like rivers and mountains.
3. The science that deals with the description of land, sea, and air and the distribution of plant and animal life, including humans: Mr. Smart gave his students the assignment of reading about the geography of their region in their textbooks.
4. The scientific study of the Earth, including its composition, structure, physical properties, and history: Since Jack was very interested in geography, he decided to study it and learn all about the historical aspects and formation of the Earth.
Geology is commonly divided into subdisciplines concerned with the chemical makeup of the Earth, including:
- The study of minerals (mineralogy) and rocks (petrology).
- The structure of the Earth (structural geology) and volcanic phenomena (volcanology).
- Landforms and the processes that produce them (geomorphology and glaciology).
- The geologic history, including the study of fossils (paleontology).
- The development of sedimentary strata (stratigraphy).
- The evolution of planetary bodies and their satellites (astrogeology).
- Economic geology and its various branches; such as, mining geology and petroleum geology.
- Also, some major fields closely allied to geology are geodesy, geophysics, and geochemistry.
Geohydrology is the branch of geology that studies the movement of subsurface water through rocks and the effect of moving water on rocks, including their erosion.
The term geohydrology is often used interchangeably with "hydrogeology". Some make the minor distinction between hydrologists or engineers who are applying themselves to geology (geohydrology), and geologists applying themselves to "hydrology" (hydrogeology).
Available for further enlightenment: the Earth, Words from the Myths.
Cross references of word families related directly, or indirectly, to: "land, ground, fields, soil, dirt, mud, clay, earth (world)": agra-; agrest-; agri-; agro-; argill-; choro-; chthon-; epeiro-; glob-; lut-; myso-; pedo-; pel-; rhyp-; soil-; sord-; terr-.