Bicarbonate-rich fluid inclusions and hydrogen diffusion in quartz from the Libcice orogenic gold deposit, Bohemian Massif

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10106099" target="_blank" >RIV/00216208:11310/11:10106099 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/11:00358377
Result on the web
<a href="http://dx.doi.org/10.1016/j.chemgeo.2010.12.018" target="_blank" >http://dx.doi.org/10.1016/j.chemgeo.2010.12.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chemgeo.2010.12.018" target="_blank" >10.1016/j.chemgeo.2010.12.018</a>

Result language
angličtina
Original language name
Bicarbonate-rich fluid inclusions and hydrogen diffusion in quartz from the Libcice orogenic gold deposit, Bohemian Massif
Original language description
Unusual paleofluid composition is reported for the Libčice orogenic-type gold deposit located in the Central Bohemian Plutonic Complex (CBPC), Czech Republic. Unexpected bicarbonate-rich fluids and their complex chemistry variations characterize primaryfluid inclusions from the main gold-bearing quartz vein. A detailed microthermometry, Laser Raman Micro Spectroscopy (LRMS) and SEM cathodoluminescence study was used to understand the complex chemistry and P-T-X history. The results indicate the presence of H2O and H2O-CO2-CH4 (+-N2; H2S) fluids, the latter displaying variations of the CO2/CH4 ratio in the gaseous phase from 6.8 to 0.06. Variation of the CH4 content across single grains and between different levels of the mine was recorded. The presence of nahcolite, H2 (up to 6mol%) and ethane (0-0.2mol%) in the fluids were also discovered by LRMS. Potential models for the formation of different types of fluids present in the deposit are discussed, including the genesis of HCO3- rich
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Project
<a href="/en/project/GA205%2F06%2F0702" target="_blank" >GA205/06/0702: Correlation between crystalochemistry of sulfosalts and tellurides and pTX characteristics of parent hydrothremal fluid</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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