- /jee'oh fiz"iks/, n. (used with a sing. v.)the branch of geology that deals with the physics of the earth and its atmosphere, including oceanography, seismology, volcanology, and geomagnetism.[1885-90; GEO- + PHYSICS]
* * *Major branch of earth science that applies the principles and methods of physics to the study of the Earth.Geophysics deals with such geologic phenomena as the temperature distribution of the Earth's interior; the source, configuration, and variations of the geomagnetic field; and the large-scale features of the terrestrial crust, such as rifts, continental sutures, and oceanic ridges. Modern geophysical research also examines phenomena of the outer parts of the Earth's atmosphere and even the physical properties of other planets and their satellites. See also marine geophysics.
* * *major branch of the Earth sciences that applies the principles and methods of physics to the study of the Earth.Geophysics deals with a wide array of geologic phenomena, including the temperature distribution of the Earth's interior; the source, configuration, and variations of the geomagnetic field; and the large-scale features of the terrestrial crust, such as rifts, continental sutures, and mid-oceanic ridges. Modern geophysical research extends to phenomena of the outer parts of the Earth's atmosphere (e.g., the ionospheric dynamo, auroral electrojets, and magnetopause current system) and even to the physical properties of other planets and their satellites.Many of the problems of geophysics are analogous to those of astronomy because the subject studied is rarely under direct observation, and conclusions must be drawn largely on the basis of mathematical interpretation of physical measurements. These include measurements of the Earth's gravitational field with gravimeters on land and sea and artificial satellites in space; magnetometric measurements of the planet's magnetic field; and seismological surveys of subsurface geologic structures using reflected and refracted elastic waves produced by earthquakes or by artificial means (see seismic survey).Research conducted with geophysical techniques has proved extremely useful in providing evidence in support of the theory of plate tectonics. Seismographic data, for instance, have demonstrated that the world's earthquake belts mark the boundaries of the enormous rigid plates that constitute the Earth's outer shell, while the findings of paleomagnetic studies have made it possible to trace the drift of the continents over geologic time.
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Geophysics — Geophysics, a major discipline of Earth sciences, is the study of the Earth by quantitative physical methods, especially by seismic, electromagnetic, and radioactivity methods. It calls heavily upon other fields of science such as math, physics,… … Wikipedia
geophysics — n. A branch of geology that uses physical principles to study the properties of the earth. Syn: geophysical science. [WordNet 1.5] … The Collaborative International Dictionary of English
geophysics — 1889, from GEO (Cf. geo ) + PHYSICS (Cf. physics) … Etymology dictionary
geophysics — [jē΄ō fiz′iks] n. the science that deals with the physics of the earth, including weather, winds, tides, earthquakes, volcanoes, etc. and their effect on the earth geophysical adj. geophysicist n … English World dictionary
geophysics — [[t]ʤi͟ːoʊfɪ̱zɪks[/t]] N UNCOUNT Geophysics is the branch of geology that uses physics to examine the earth s structure, climate, and oceans … English dictionary
geophysics — Žemės fizika statusas T sritis fizika atitikmenys: angl. geophysics; terrestrial physics vok. Geophysik, f rus. геофизика, f; физика Земли, f pranc. géophysique, f; physique de la Terre, f; physique terrestre, f … Fizikos terminų žodynas
geophysics — geofizika statusas T sritis ekologija ir aplinkotyra apibrėžtis Mokslas, tiriantis fizikines savybes ir fizikinius procesus, vykstančius ir praeityje vykusius Žemės plutoje ir gelmėse, hidrosferoje ir atmosferoje. atitikmenys: angl. geophysics… … Ekologijos terminų aiškinamasis žodynas
geophysics — noun plural but singular or plural in construction Etymology: International Scientific Vocabulary Date: circa 1889 a branch of earth science dealing with the physical processes and phenomena occurring especially in the earth and in its vicinity • … New Collegiate Dictionary
geophysics — noun /ˌdʒiː.əʊˈfɪz.ɪks/ A branch of earth science dealing with the physical processes and phenomena occurring in the earth and in its vicinity … Wiktionary
geophysics — Synonyms and related words: Newtonian physics, acoustics, aerophysics, applied physics, astrophysics, basic conductor physics, biophysics, chemical physics, cosmical geology, cryogenics, crystallography, cytophysics, dynamic geology, electron… … Moby Thesaurus