Difference between revisions of "Basalt"

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a fine-grained volcanic rock used for the manufacture of chipped stone artifacts. Color black to gray, texture granular to glass-like.
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* (anthropology, archaeology) a fine-grained volcanic rock used for the manufacture of chipped stone artifacts. Color black to gray, texture granular to glass-like.
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* (environment) Consistent year-round energy use of a facility; also refers to the minimum amount of electricity supplied continually to a facility. <br/>Source: [http://www.epa.gov/OCEPAterms/ Terms of the Environment]
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* (geology)
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# A fine-grained  [[colored]] [[extrusive rocks]]. <br/>Source: Leet, L. Don. 1982. <i>Physical Geology, 6th Edition.</i> Englewood Cliffs, NJ: Prentice-Hall
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# A general term for dark-colored mafic igneous rocks, commonly extrusive but locally intrusive (e.g., as dikes), composed chiefly of calcic plagioclase and clinopyroxene; the fine-grained equivalent of gabbro. Nepheline, olivine, orthopyroxene, or quartz may be present. Adj. basaltic. CF: [[tholeiite]] <br/>Source: Dictionary of Mining, Mineral, and Related Terms
  
 
[[Category: Anthropology]]
 
[[Category: Anthropology]]
 
[[Category: Archaeology]]
 
[[Category: Archaeology]]
 
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[[Category: Environment]]
 
 
 
 
 
 
 
 
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Latest revision as of 11:18, 12 November 2020

  • (anthropology, archaeology) a fine-grained volcanic rock used for the manufacture of chipped stone artifacts. Color black to gray, texture granular to glass-like.
  • (environment) Consistent year-round energy use of a facility; also refers to the minimum amount of electricity supplied continually to a facility.
    Source: Terms of the Environment
  • (geology)
  1. A fine-grained colored extrusive rocks.
    Source: Leet, L. Don. 1982. Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
  2. A general term for dark-colored mafic igneous rocks, commonly extrusive but locally intrusive (e.g., as dikes), composed chiefly of calcic plagioclase and clinopyroxene; the fine-grained equivalent of gabbro. Nepheline, olivine, orthopyroxene, or quartz may be present. Adj. basaltic. CF: tholeiite
    Source: Dictionary of Mining, Mineral, and Related Terms


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