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Columbia Encyclopedia entry: prospecting
Prospecting, search for mineral deposits suitable for mining. Modern prospecting has replaced earlier methods based on chance or superstition (e.g., use of the divining rod) with others based on a scientific knowledge of modern geology and mineralogy. Surface indications of deposits are confirmed by extensive sampling, e.g., by examination and analysis of material taken from holes drilled at regular intervals. Modern geophysical methods of prospecting use instruments that measure variations in the earth's magnetic or gravitational field, or in the direction, nature, and velocity of waves set up in the ground by underground explosions. Electrical methods employ instruments that indicate relative electrical conductivity between points in the earth's surface or electromotive forces generated by large ore bodies. Geochemical prospecting involves the chemical or spectrographic analysis of soil, plant, and water samples. Scintillometers or Geiger counters are used to locate radioactive materials. A portable radioactive source is the basis of the berylometer, useful in locating beryl. Some minerals fluoresce in the presence of ultraviolet light; they are sought in the dark with portable ultraviolet lamps. Aerial and satellite photography and airborne instruments have proved useful for preliminary prospecting in unexplored territories.

See J. B. Chaussier and J. Morer, Mineral Prospecting Manual (1986); M. Kuzvart and M. Bohmer, Prospecting and Exploration of Mineral Deposits (2d ed. 1986).

Wikipedia search results for: Prospecting
From Wikipedia, the free encyclopedia
Prospecting is the physical search for minerals, fossils, precious metals or mineral specimens, and is also known as fossicking. Prospecting is a small-scale form of mineral exploration which latter is an organised, large scale effort undertaken by mineral resource companies to find commercially viable ore deposits. Prospecting is physical labor, involving traversing, panning, sifting and outcrop investigation, looking for signs of mineralisation. A prospector must also make claims, meaning they must erect posts with the appropriate placards on all four corners of a desired land they wish to prospect and register this claim before they may take...more »
Columbia Encyclopedia search results: prospecting
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  • Mount Prospect

    Mount Prospect, village (1990 pop. 53,170), Cook co., NE Ill.; inc. 1917. It is a large and growing residential suburb of Chicago.

  • Bar-jesus

    Bar-jesus, called Elymas, in the New Testament, Jewish sorcerer at Paphos who tried to divert a prospective Christian convert and was cursed with blindness.

  • Burgis, William

    Burgis, William, fl. 1717–31, American engraver and publisher of maps and views, b. London. His name appears as publisher on the views South Prospect of ye Flourishing City of New York (1717; ...

  • Hay-Herrán Treaty

    Hay-Herrán Treaty, 1903, aborted agreement between the United States and Colombia providing for U.S. control of the prospective Panama Canal and for U.S. acquisition of a canal zone. It was si...

  • property

    Property, rights to the enjoyment of things of economic value, whether the enjoyment is exclusive or shared, present or prospective. The rightful possession of such rights is called ownership....

  • The Pas

    The Pas, town (1991 pop. 6,166), W Man., Canada, on the Saskatchewan River. Founded as a fur-trading post, it became in 1920 the starting point and headquarters of the Hudson Bay Railway to Ch...

  • Austin, Moses

    Austin, Moses, 1761–1821, American pioneer, b. Durham, Conn. After developing lead mines in SW Virginia, he went to inspect (1796–97) prospects in Missouri, then Spanish territory. In 1798 he ...

  • genetic screening

    Genetic screening, testing for genetic disorders. Most commonly, prospective parents or an embryo or fetus is tested when a specific genetic disorder is suspected (e.g., Tay-Sachs or sickle ce...

  • Basse-Terre

    Basse-Terre, town (1999 pop. 12,410), on Basse-Terre Island, capital of Guadeloupe, a French overseas department in the West Indies. Basse-Terre is a port that ships the products of the surrou...

  • Teraina

    Teraina, atoll (1990 pop. 936), 3 sq mi (7.8 sq km), central Pacific, one of the Line Islands and part of the Republic of Kiribati. Visited by the American explorer Edmund Fanning in 1798, it ...

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