Deviation survey — A Deviation survey[1], more generally known in the oil industry as simply a survey , is the measurement of a borehole s departure from the vertical, measured in degrees (°). When a well plan dictates the drilling of a straight borehole, surveys… … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Orex Exploration — Inc. Type Public (TSX V: OX) Industry Mining Founded 1987 … Wikipedia
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium
Crandall Canyon Mine — Coordinates: 39°27′36″N 111°10′04″W / 39.460000°N 111.167639°W / 39.460000; 111.167639 The Crandall Canyon Mine, formerly Genwal … Wikipedia
undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… … Universalium
National Mine Map Repository — Agency overview Formed 1982 Headquarters Pittsburgh, Pennsylvania … Wikipedia
Digital geologic mapping — is the process by which geologic features are observed, analyzed, and recorded in the field and displayed in real time on a computer or personal digital assistant (PDA). The primary function of this emerging technology is to produce spatially… … Wikipedia
Baryte — (barite) Baryte crystals on dolomite from Cumbria, England (size: 5.4×4.6 cm) General Category Sulfate mineral, barite group … Wikipedia
Cold Regions Research and Engineering Laboratory — Established 1 February 1961 (1 February 1961) Research Type … Wikipedia