Bedrock Weathering and Stream Water Chemistry in Felsic and Ultramafic Forest Catchments
作者： Pavel Krám , Juraj Farkaš , Anna Pereponova , Chukwudi Nwaogu , Veronika Štědrá
DOI: 10.1016/J.PROEPS.2014.08.010
关键词: Weathering 、 Bedrock 、 Drainage basin 、 Ultramafic rock 、 Silicate 、 Geochemistry 、 Felsic 、 Lithology 、 Topsoil 、 Geology
摘要: Abstract Two small forested catchments, each underlain by geochemically contrasting silicate rock types, were studied in the western Czech Republic. The felsic (granitic) Lysina catchment exhibited low resilience to anthropogenic acidic deposition and therefore pH, Mg high concentration of toxic species Al drainage water. Pluhův Bor, ultramafic rocks (especially serpentinite), very also peculiar water chemistry due lithology (high Mg, Ni Cr). A significant depletion trend was observed from unweathered weathered topsoils at both sites. Enrichment profiles K Ca within topsoil Bor indicated biocycling these limiting nutrients.
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