Quartzolite

Source: Wikipedia, the free encyclopedia.
plutonic rocks

Quartzolite or silexite is an

bosses and segregation masses;[3][4] it is also found in association with greisen and pegmatite.[5][6][7] Quartzolite is an extremely rare type of rock.[8] No extrusive rock equivalent of quartzolite is known.[9]

Synonyms

The use of the synonym "silexite" is discouraged because it is the French word for chert, which is a sedimentary rock.[10] Other less common synonyms are "igneous quartz" and "peracidite".[11]

Examples

Formation

Some occurrences of quartzolite are unlikely to have an entirely igneous origin;

NSW, are believed to have formed in different ways. One type forms dykes and sills in the granite and in the surrounding metamorphic rocks. The other type has remnants of an earlier granite texture and is found on the outer edges of part of the pluton.[19]

References

  1. ^
    ISBN 978-0-521-66215-4. {{cite book}}: |author= has generic name (help
    )
  2. ^ a b "Quartzolite". BGS Rock Classification Scheme. British Geological Survey. Retrieved 20 November 2016.
  3. ^ a b "Definition of silexite". mindat.org. Retrieved 20 November 2016.
  4. ^ Lishmund, S.R. (1974). "The Torrington silexite deposits". Geological Survey of New South Wales: Quarterly Notes. 17: 3–6.
  5. ^ a b Fraser, Dean (2013). "Ackley Mo-Sn-F-W" (PDF). Newfoundland & Labrador: Explore The Opportunities. Matty Mitchell Prospectors Resource Room. Retrieved 21 November 2016.
  6. ^
    ISSN 0514-8057
    .
  7. ^ .
  8. ^ a b Gillespie, M.R.; Styles, M.T. (1999). "BGS Rock Classification Scheme, Volume 1: Classification of igneous rocks". British Geological Survey. p. 10. Retrieved 19 November 2016.
  9. .
  10. ISBN 978-3642066214. {{cite book}}: |first3= has generic name (help
    )
  11. .
  12. .
  13. .
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  15. .
  16. ^ Mair, B.F. (1987). "The Geology of South Georgia: VI. Larsen Harbour Formation". British Antarctic Survey Scientific Reports. 111: 1–60.
  17. NSW
    Department of Primary Industries. Retrieved 23 November 2016.
  18. ^ Skinner, Mike (2015). "The Torrington Project" (PDF). Top Tung. Retrieved 23 November 2016.