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Published in:
2005 | OriginalPaper | Chapter
Palaeofluid flow in siliciclastic Lower Carboniferous rocks: Evidence from stable isotopes and fluid inclusions, Rhenohercynian Zone, Czech Republic
Authors : Jan Kucera, Klàra Kucerovà-Charvàtovà, Phillipe Muchez, Walter Prochaska
Published in: Mineral Deposit Research: Meeting the Global Challenge
Publisher: Springer Berlin Heidelberg
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Post-Variscan Zn, Pb, Cu vein minera-lisation occurs within the Lower Carboniferous siliciclastic rocks at the eastern border of the Bohemian Massif. Saddle dolomites are associated with this vein mineralisation and indicate a NW-SE oriented fluid flow through the Palaeozoic rocks. The major control on this fluid flow pattern is experted by faults. Eutectic temperature and crush-leach analyses indicate H
2
O-NaCl-CaCl
2
type of basinal brines. Homogenization temperatures regionally decrease from 147° to 80°C and salinities from 26.5 to 17 wt.% eq. NaCl. Temperatures correlate well with an increase of_δ
18
O values from 15.5 to 22.5%. SMOW and_δ
13
C values from_−5.6 to_−3.1%. PDB.