Browsing Geochemie, Mineralogie, Petrologie by Contributor "Wallmann, K."

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    • Origin of High Mg and SO4 Fluids in Sediments of the Terceira Rift, Azores-Indications for Caminite Dissolution in a Waning Hydrothermal System 

      Schmidt, C.ORCIDiD; Hensen, C.ORCIDiD; Wallmann, K.; Liebetrau, V.ORCIDiD; Tatzel, M.; Schurr, S. L.; Kutterolf, S.ORCIDiD; Haffert, L.; Geilert, S.ORCIDiD; Hübscher, C.ORCIDiD; Lebas, E.ORCIDiD; Heuser, A.ORCIDiD; Schmidt, M.ORCIDiD; Strauss, H.ORCIDiD; Vogl, J.ORCIDiD; Hansteen, T.ORCIDiD (Geochemistry, Geophysics, Geosystems, 2019)
      During R/V Meteor cruise 141/1, pore fluids of near surface sediments were investigated to find indications for hydrothermal activity in the Terceira Rift (TR), a hyperslow spreading center in the Central North Atlantic ...

    • Recycling and Burial of Biogenic Silica in an Open Margin Oxygen Minimum Zone 

      Dale, A. W.ORCIDiD; Paul, K. M.ORCIDiD; Clemens, D.ORCIDiD; Scholz, F.; Schroller‐Lomnitz, U.; Wallmann, K.; Geilert, S.ORCIDiD; Hensen, C.ORCIDiD; Plass, A.; Liebetrau, V.ORCIDiD; Grasse, P.ORCIDiD; Sommer, S. (Global Biogeochemical Cycles, 2021-02-17)
      An extensive data set of biogenic silica (BSi) fluxes is presented for the Peruvian oxygen minimum zone (OMZ) at 11°S and 12°S. Each transect extends from the shelf to the upper slope (∼1,000 m) and dissects the permanently ...