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Mineralogical and chemical distribution patterns of placers and ferricretes in Quaternary sediments in SE Germany: The impact of nature and man on the unroofing of pegmatites
Authors:HG Dill  A Techmer  B Weber  M Füßl
Institution:1. Federal Institute for Geosciences and Natural Resources, P.O. Box 510163, D-30631 Hannover, Germany;2. Leibnitz Institute for Applied Geosciences, P.O. Box 510163, D-30631 Hannover, Germany;3. Bürgermeister-Knorr Str. 8, D-92637 Weiden i.d.OPf., Germany;4. A.-v.-Humboldt-Str. 4, D-92711 Parkstein, Germany
Abstract:Placer deposits mark the ultimate stage of mineral separation in clastic sediments by physical processes in an aquatic regime, whereas duricrusts are an example of extreme element separation by chemical processes in continental environments of deposition. In Quaternary sediments in SE Germany such contrasting types of sediments formed on the NE Bavarian Basement which is underlain by metamorphic and pegmatitic rocks reflecting intense primary element differentiation by themselves.
Keywords:Placers  Ferricretes  Pegmatite  Human impact  Quaternary  SE Germany
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