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Showing 1 to 1 of 1 for “"Yanshanian"”.
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Spatial and temporal evolution of fluids in hydrothermal ore deposits
Magmatic-hydrothermal systems typically have vertical extents of several hundred<br />meters and their geochemical characteristics (e.g. mineral assemblages) vary considerably<br />over that vertical extent. As a consequence the expression in outcrop varies depending on<br />the level of erosion. …