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Words List   (C)
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   Cable Tools  
Subject: Resources & Reserves
    The equipment used in the standard or cable-tool method of drilling. It consists essentially of a steel bit with a chiesel-shaped cutting edge. In drilling, the tools are alternately lifted and dropped, the rock being cut by repeated blows of the bit. Broken chips of rock are removed by a bailer. Reference: R.L. Bates & J.A. Jackson, DICTIONARY OF GEOLOGICAL TERMS, Third Edition, American Geological Institute, 1983.
 
 
  
   CAD  
Subject: The Earth
    computer-aided design, software packages designed to automate drafting of mechanical drawings.
 
 
  
   CAD or CADD  
Subject: The Earth
    CAD or CADD- refers to computer-aided design and drafting. CAD systems are used to create maps and plans and are closely related to GIS systems. Although most CAD systems lack certain features essential to GIS analysis, such as the power to manage different spatial coordinate systems and database capabilities, many CAD systems have been developed into full GIS with the addition of necessary functions.
 
 
  
   cadastral  
Subject: The Earth
    pertaining to the legal register of land particularly for land taxation or property transfer; more loosely, related to property parcels.
 
 
  
   Cadastral map  
Subject: Geography
    See: map, cadastral.


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   Cadastral Survey   
Subject: The Earth
    Cadastral Survey is the means by which private and public land is defined, divided, traced, and recorded. The term derives from the French cadastre, a register of the survey of lands and is, in effect, the public record of the extent, value, and ownership of land for purposes of taxation.
 
 
  
   calcareous  
Subject: Geography
    a material or substance that contains or resembles calcium carbonate


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   Calcareous   
Subject: Resources & Reserves
    Containing calcium carbonate. When applied to a rock name; it implies that as much as 50% of the rock is calcium carbonate. Reference: R.L. Bates & J.A. Jackson, DICTIONARY OF GEOLOGICAL TERMS, Third Edition, American Geological Institute, 1983.
 
 
  
   calcite   
Subject: The Earth
    A common rock-forming mineral, CaCO3. It is usually white, colorless or light shades of gray, yellow and blue. Calcite is a principal constituent of limestone.
 
 
  
   Caldera   
Subject: Geography
    A large circular depression in a volcano.


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