Articles | Volume 17, issue 7
https://doi.org/10.5194/bg-17-1745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-1745-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Apr 2020
Research article |
| 03 Apr 2020
| 03 Apr 2020
Impact of ambient conditions on the Si isotope fractionation in marine pore fluids during early diagenesis
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Patricia Grasse
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Kristin Doering
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Department of Oceanography, Dalhousie University, Halifax, Canada
Klaus Wallmann
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Claudia Ehlert
Marine Isotope Geochemistry, ICBM, University of Oldenburg, 26129 Oldenburg, Germany
Florian Scholz
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Martin Frank
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Mark Schmidt
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
Christian Hensen
GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1–3,
24148 Kiel, Germany
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Short summary
Marine silicate weathering is a key process of the marine silica cycle; however, its controlling processes are not well understood. In the Guaymas Basin, silicate weathering has been studied under markedly differing ambient conditions. Environmental settings like redox conditions or terrigenous input of reactive silicates appear to be major factors controlling marine silicate weathering. These factors need to be taken into account in future oceanic mass balances of Si and in modeling studies.
Marine silicate weathering is a key process of the marine silica cycle; however, its controlling...
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