Zebra dolomites of the spessart, germany: implications for hydrothermal systems of the european zechstein basin

SUMMARY

The formation of base metal deposits is often related to regional-scale, fluid-rock interactions that involve large volumes of reactive fluids (e_g, Blundell et_al 2003). The petrographic characterization was complemented by a fluid inclusion micro-thermometry study and stable isotope analysis to characterize the nature of the fluids trapped within the zebra dolomite. Consequently, the hypothesis of fluid-rock interactions with local seawater heated to 220 °C is unlikely, so the authors postulate that the dark layers of the zebra dolomite developed by an interaction with migrating fluids present inside the basin. As outlined in Fig . . .

 



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