The effect of temperature and cataclastic deformation on the composition of upper crustal fluids — An experimental approach

We investigated the potential of common crystalline rocks to facilitate the geochemical evolution of continental basement brines and to serve as a metal source for hydrothermal ore deposits. We performed leaching experiments on typical crystalline basement rocks (granite and gneiss), a redbed sandst...

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Bibliographic Details
Published in:Chemical geology 2016-09, Vol.433, p.24-35
Main Authors: Burisch, Mathias, Marks, Michael A.W., Nowak, Marcus, Markl, Gregor
Format: Article
Language:English
Subjects:
Basements
Biotite
Brackish
Brittle deformation
Cataclasis
Cl/Br
Crystal structure
Fluid dynamics
Fluid flow
Fluids
Halogen systematic
Hydrothermal ore
Leachates
Marine
Metals
Rocks
Water–rock interaction
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Summary:We investigated the potential of common crystalline rocks to facilitate the geochemical evolution of continental basement brines and to serve as a metal source for hydrothermal ore deposits. We performed leaching experiments on typical crystalline basement rocks (granite and gneiss), a redbed sandstone and their mineral separates (feldspar, quartz and biotite) at variable T (25, 180, 275 and 350°C), P (ambient pressure, 0.9, 1.4 and 1.9kbar), grain-size fractions (
ISSN:0009-2541
1872-6836
DOI:10.1016/j.chemgeo.2016.03.031