Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator
Some aspects of one-mineral geological environment indicators are discussed. Factors controlling the composition of biotite in different P, T, and chemical environments are reviewed. On the basis of theoretical considerations and empirical observation it is concluded that biotites in igneous granite...
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Geological Society of Finland
1970-12-01
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| Series: | Bulletin of the Geological Society of Finland |
| Online Access: | http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_023_032.pdf |
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doaj-0036c60be7a341f2bff9742846880f862020-11-25T01:17:17ZengGeological Society of FinlandBulletin of the Geological Society of Finland0367-52111799-46321970-12-0142233210.17741/bgsf/42.003Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicatorR. GorbatschevSome aspects of one-mineral geological environment indicators are discussed. Factors controlling the composition of biotite in different P, T, and chemical environments are reviewed. On the basis of theoretical considerations and empirical observation it is concluded that biotites in igneous granites may tend to be somewhat richer in iron than biotites from gneisses, but the relation is not strict, and the Fe/Mg or FeO/MgO/Al2O3 ratios in biotite do not provide unequivocal indications of the origin of biotite-bearing rocks. http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_023_032.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
R. Gorbatschev |
| spellingShingle |
R. Gorbatschev Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator Bulletin of the Geological Society of Finland |
| author_facet |
R. Gorbatschev |
| author_sort |
R. Gorbatschev |
| title |
Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| title_short |
Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| title_full |
Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| title_fullStr |
Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| title_full_unstemmed |
Biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| title_sort |
biotites in granites, biotites in gneisses, and the status of biotite as a one-mineral environment indicator |
| publisher |
Geological Society of Finland |
| series |
Bulletin of the Geological Society of Finland |
| issn |
0367-5211 1799-4632 |
| publishDate |
1970-12-01 |
| description |
Some aspects of one-mineral geological environment indicators are discussed. Factors controlling the composition of biotite in different P, T, and chemical environments are reviewed. On the basis of theoretical considerations and empirical observation it is concluded that biotites in igneous granites may tend to be somewhat richer in iron than biotites from gneisses, but the relation is not strict, and the Fe/Mg or FeO/MgO/Al2O3 ratios in biotite do not provide unequivocal indications of the origin of biotite-bearing rocks.
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| url |
http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_023_032.pdf |
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AT rgorbatschev biotitesingranitesbiotitesingneissesandthestatusofbiotiteasaonemineralenvironmentindicator |
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1725146862233583616 |