| SLOBODNÍK, Marek, Petr GADAS, Dalibor VŠIANSKÝ, Antonín PŘICHYSTAL a Zdeněk LOSOS. Regional low-temperature fluid flow indicated by quartz mineralization in Silesicum, NE Bohemian massif. Geologica Carpathica. Bratislava: Slovak Acad Sciences Geological Inst, 2020, roč. 71, č. 3, s. 233-248. ISSN 1335-0552. Dostupné z: https://dx.doi.org/10.31577/GeolCarp.71.3.3. |
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@article{1687276,
author = {Slobodník, Marek and Gadas, Petr and Všianský, Dalibor and Přichystal, Antonín and Losos, Zdeněk},
article_location = {Bratislava},
article_number = {3},
doi = {http://dx.doi.org/10.31577/GeolCarp.71.3.3},
keywords = {Bohemian Massif; Silesicum; regional fluid flow; hydrothermal alteration; quartz veins; fluid inclusions; muscovite},
language = {eng},
issn = {1335-0552},
journal = {Geologica Carpathica},
title = {Regional low-temperature fluid flow indicated by quartz mineralization in Silesicum, NE Bohemian massif},
url = {https://doi.org/10.31577/GeolCarp.71.3.3},
volume = {71},
year = {2020}
}
TY - JOUR
ID - 1687276
AU - Slobodník, Marek - Gadas, Petr - Všianský, Dalibor - Přichystal, Antonín - Losos, Zdeněk
PY - 2020
TI - Regional low-temperature fluid flow indicated by quartz mineralization in Silesicum, NE Bohemian massif
JF - Geologica Carpathica
VL - 71
IS - 3
SP - 233-248
EP - 233-248
PB - Slovak Acad Sciences Geological Inst
SN - 13350552
KW - Bohemian Massif
KW - Silesicum
KW - regional fluid flow
KW - hydrothermal alteration
KW - quartz veins
KW - fluid inclusions
KW - muscovite
UR - https://doi.org/10.31577/GeolCarp.71.3.3
L2 - https://doi.org/10.31577/GeolCarp.71.3.3
N2 - The crystalline rocks of the Silesicum unit of the Bohemian Massif host two principal types of hydrothermal quartz veins. Veins associated with granitoids are primarily quartz with wollastonite and epidote and accompanied by hydrothermal alteration of host rocks whereas others are of the more complex "Alpine-type". L+ V + S (liquid + vapour + solid phase) fluid inclusions within quartz crystals contain muscovite and +/- calcite (+/- haematite) as solid phases and homogenisation temperatures are between 124 and 176 degrees C. Trapped fluids are uniformly of the H2O-NaCl-CaCl2 +/- MgCl2 +/- KCl system with a salinity between 9.1 and 26.8 mass % (NaCl+CaCl2). The variable Na/Ca ratios result from different intensity of fluid-rock reactions. The ubiquitous muscovite is a product of fluid-rock interactions. Oxygen isotope evidence indicates that the fluids were a mixture of meteoric and marine waters in deep regional-scale convection systems. The studied type of fluids represents a post-Variscan hydrothermal system and shows the extent of migration pathways in the upper crust on the north-eastern edge of the Bohemian Massif.
ER -
SLOBODNÍK, Marek, Petr GADAS, Dalibor VŠIANSKÝ, Antonín PŘICHYSTAL a Zdeněk LOSOS. Regional low-temperature fluid flow indicated by quartz mineralization in Silesicum, NE Bohemian massif. \textit{Geologica Carpathica}. Bratislava: Slovak Acad Sciences Geological Inst, 2020, roč.~71, č.~3, s.~233-248. ISSN~1335-0552. Dostupné z: https://dx.doi.org/10.31577/GeolCarp.71.3.3.
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