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Geochemistry

, Volume 4, Issue 2, pp 181–191 | Cite as

Compositional conversion of feldspathic phase in granitoids and its application to rock-forming temperature calculation

  • Huang Maoxin 
Article
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Abstract

Based on the data on plagioclase number of granitoids and whole-rock chemical analysis, the author has proposed that the percentage of molecules of albite in the coexisting plagioclase and alkali-feldspar can be obtained by direct conversion through a petro-chemical approach. Then, the result is substituted into the formula of J. A. Whitney and J. C. Stormer, Jr. (1975, 1977) to work out, the temperatures at which the coexisting feldspars crystallized, i.e., the possible rock-forming temperature of granitoids. Rock-forming temperature values computed by this method as described in the present paper are in good agreement with those by other geothermometries.

Keywords

Apatite Aluminium Atom Biotite Granite Pressure Correction Potassium Atom 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    Aleksandrov, A. G., Geokhimiya, 7(1968), 843–846.Google Scholar
  2. [2]
    Chirvinski, P. N., Mean Chemical Composition of Main Minerals of Igneous, Metamorphic and Sedimentary Rocks (Chinese version, transiated by Zhao Funing), Geology Press, Beijing, 1957, 54–62.Google Scholar
  3. [3]
    Stormer, J. C., Jr., Amer. Miner., 60(1975), 667–674.Google Scholar
  4. [4]
    Whitney, J. A. and Stormer, J. C., Jr., Amer. Miner., 62(1977), 687–691.Google Scholar
  5. [5]
    Lu Huanzhang et al., Study of Fluid Inclusions in Minetals, Science Press, Beijing, 1981, 21.Google Scholar
  6. [6]
    Institute of Geochemistry, Academia Sinica, Geochemistry of Granitoids in South China, Science Press, Beijing, 1979, 376.Google Scholar
  7. [7]
    Whitney, J. A. and Stormer, J. C., Jr., Amer. Miner., 61(1976), 743–758.Google Scholar
  8. [8]
    Wang Henian et al., Scientia Sinica, XXIII (1980), 9: 1150–1151.Google Scholar

Copyright information

© Science Press 1985

Authors and Affiliations

  • Huang Maoxin 
    • 1
  1. 1.Chengdu Geological CollegeChina

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