2013
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)
BREITER, Karel; Nina GARDENOVÁ; Viktor KANICKÝ a Tomáš VACULOVIČZákladní údaje
Originální název
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)
Autoři
Vydání
Geologica Carpathica, Bratislava, GÚ SAV, 2013, 1335-0552
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 0.835
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/13:00066320
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova anglicky
ICP-MS; geochemistry; granites; gallium; germanium
Příznaky
Recenzováno
Změněno: 7. 4. 2014 15:28, doc. Mgr. Tomáš Vaculovič, Ph.D.
Anotace
V originále
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.
Návaznosti
| ED1.1.00/02.0068, projekt VaV |
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| GAP210/10/1309, projekt VaV |
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