230Th, 231Pa, and 10Be in particle size fractions of an opal-rich sediment of the Atlantic Southern Ocean, supplement to: Kretschmer, Sven; Geibert, Walter; Rutgers van der Loeff, Michiel M; Schnabel, Christoph; Xu, Sheng; Mollenhauer, Gesine (2011): Fractionation of **230Th, **231Pa, and **10Be induced by particle size and composition within an opal-rich sediment of the Atlantic Southern Ocean. Geochimica et Cosmochimica Acta, 75(22), 6971-6987

Sven Kretschmer, Walter Geibert, Michiel M Rutgers van der Loeff, Christoph Schnabel, Sheng Xu & Gesine Mollenhauer
This study centers on the question: How sensitive are 231Pa/230Th and 10Be/230Th to sediment composition and redistribution? The natural radionuclides 231Pa, 230Th and 10Be recorded in deep sea sediments are tracers for water mass advection and particle fluxes. We investigate the influence of oceanic particle composition on the element adsorption in order to improve our understanding of sedimentary isotope records. We present new data on particle size specific 231Pa and 10Be concentrations. An additional separation...
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