BREITER, Karel, Nina GARDENOVÁ, Viktor KANICKÝ a Tomáš VACULOVIČ. Gallium and germanium geochemistry during magmatic fractionation and post-magmatic alteration in different types of granitoids: a case study from the Bohemian Massif (Czech Republic). Geologica Carpathica. Bratislava: GÚ SAV, 2013, roč. 64, č. 3, s. 171-180. ISSN 1335-0552. Dostupné z: https://dx.doi.org/10.2478/geoca-2013-0018. |
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@article{1121975, author = {Breiter, Karel and Gardenová, Nina and Kanický, Viktor and Vaculovič, Tomáš}, article_location = {Bratislava}, article_number = {3}, doi = {http://dx.doi.org/10.2478/geoca-2013-0018}, keywords = {ICP-MS; geochemistry; granites; gallium; germanium}, language = {eng}, issn = {1335-0552}, journal = {Geologica Carpathica}, title = {Gallium and germanium geochemistry during magmatic fractionation and post-magmatic alteration in different types of granitoids: a case study from the Bohemian Massif (Czech Republic)}, volume = {64}, year = {2013} }
TY - JOUR ID - 1121975 AU - Breiter, Karel - Gardenová, Nina - Kanický, Viktor - Vaculovič, Tomáš PY - 2013 TI - Gallium and germanium geochemistry during magmatic fractionation and post-magmatic alteration in different types of granitoids: a case study from the Bohemian Massif (Czech Republic) JF - Geologica Carpathica VL - 64 IS - 3 SP - 171-180 EP - 171-180 PB - GÚ SAV SN - 13350552 KW - ICP-MS KW - geochemistry KW - granites KW - gallium KW - germanium N2 - Contents of Ga and Ge in granites, rhyolites, orthogneisses and greisens of different geochemical types from the Bohemian Massif were studied using inductively coupled plasma mass spectrometry analysis of typical whole-rock samples. The contents of both elements generally increase during fractionation of granitic melts: Ga from 16 to 77 ppm and Ge from 1 to 5 ppm. The differences in Ge and Ga contents between strongly peraluminous (S-type) and slightly peraluminous (A-type) granites were negligible. The elemental ratios of Si/1000Ge and Al/1000Ga significantly decreased during magmatic fraction: from ca. 320 to 62 and from 4.6 to 1.2, respectively. During greisenization, Ge is enriched and hosted in newly formed hydrothermal topaz, while Ga is dispersed into fluid. The graph Al/Ga vs. Y/Ho seems to be useful tool for geochemical interpretation of highly evolved granitoids. ER -
BREITER, Karel, Nina GARDENOVÁ, Viktor KANICKÝ a Tomáš VACULOVIČ. Gallium and germanium geochemistry during magmatic fractionation and post-magmatic alteration in different types of granitoids: a case study from the Bohemian Massif (Czech Republic). \textit{Geologica Carpathica}. Bratislava: GÚ SAV, 2013, roč.~64, č.~3, s.~171-180. ISSN~1335-0552. Dostupné z: https://dx.doi.org/10.2478/geoca-2013-0018.
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