Книга: Farrington Oliver C «New mineral occurrences»

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• Mineral exploration — is the process of finding ore (commercially viable concentrations of minerals) to mine. Mineral exploration is a much more intensive, organized and professional form of mineral prospecting and, though it frequently uses the services of… …   Wikipedia

• mineral deposit — Introduction       aggregate of a mineral in an unusually high concentration.       About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …   Universalium

• Mineral industry of Botswana — The mineral industry of Botswana has dominated the national economy since the early 1990s. Diamond has been the leading component of the mineral sector since large scale diamond production began 25 years ago. Most of Botswana’s diamond production …   Wikipedia

• dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …   Universalium

• metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …   Universalium

• Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium