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A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements

Sutton, Jill N.; André, Luc; Cardinal, Damien; Conley, Daniel J. LU ; De Souza, Gregory F.; Dean, Jonathan; Dodd, Justin; Ehlert, Claudia; Ellwood, Michael J. and Frings, Patrick J. LU , et al. (2018) In Frontiers in Earth Science 5.
Abstract

Silicon (Si) is the second most abundant element in the Earth’s crust and is an important nutrient in the ocean. The global Si cycle plays a critical role in regulating primary productivity and carbon cycling on the continents and in the oceans. Development of the analytical tools used to study the sources, sinks, and fluxes of the global Si cycle (e.g., elemental and stable isotope ratio data for Ge, Si, Zn, etc.) have recently led to major advances in our understanding of the mechanisms and processes that constrain the cycling of Si in the modern environment and in the past. Here, we provide background on the geochemical tools that are available for studying the Si cycle and highlight our current understanding of the marine,... (More)

Silicon (Si) is the second most abundant element in the Earth’s crust and is an important nutrient in the ocean. The global Si cycle plays a critical role in regulating primary productivity and carbon cycling on the continents and in the oceans. Development of the analytical tools used to study the sources, sinks, and fluxes of the global Si cycle (e.g., elemental and stable isotope ratio data for Ge, Si, Zn, etc.) have recently led to major advances in our understanding of the mechanisms and processes that constrain the cycling of Si in the modern environment and in the past. Here, we provide background on the geochemical tools that are available for studying the Si cycle and highlight our current understanding of the marine, freshwater and terrestrial systems. We place emphasis on the geochemistry (e.g., Al/Si, Ge/Si, Zn/Si, δ13 C, δ15 N, δ18 O, δ30 Si) of dissolved and biogenic Si, present case studies, such as the Silicic Acid Leakage Hypothesis, and discuss challenges associated with the development of these environmental proxies for the global Si cycle. We also discuss how each system within the global Si cycle might change over time (i.e., sources, sinks, and processes) and the potential technical and conceptual limitations that need to be considered for future studies.

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publication status
published
subject
keywords
Biogenic silica, Biogeochemical cycles, C-N-O - Si isotopes, Element/Si ratios, Silicon
in
Frontiers in Earth Science
volume
5
publisher
Frontiers Research Foundation
external identifiers
  • scopus:85043517502
  • scopus:85043517502
DOI
10.3389/feart.2017.00112
language
English
LU publication?
yes
id
97a70d69-b260-4c37-bb79-2e1bcd2347db
date added to LUP
2018-03-21 14:05:15
date last changed
2018-11-04 04:36:11
@article{97a70d69-b260-4c37-bb79-2e1bcd2347db,
  abstract     = {<p>Silicon (Si) is the second most abundant element in the Earth’s crust and is an important nutrient in the ocean. The global Si cycle plays a critical role in regulating primary productivity and carbon cycling on the continents and in the oceans. Development of the analytical tools used to study the sources, sinks, and fluxes of the global Si cycle (e.g., elemental and stable isotope ratio data for Ge, Si, Zn, etc.) have recently led to major advances in our understanding of the mechanisms and processes that constrain the cycling of Si in the modern environment and in the past. Here, we provide background on the geochemical tools that are available for studying the Si cycle and highlight our current understanding of the marine, freshwater and terrestrial systems. We place emphasis on the geochemistry (e.g., Al/Si, Ge/Si, Zn/Si, δ<sup>13</sup> C, δ<sup>15</sup> N, δ<sup>18</sup> O, δ<sup>30</sup> Si) of dissolved and biogenic Si, present case studies, such as the Silicic Acid Leakage Hypothesis, and discuss challenges associated with the development of these environmental proxies for the global Si cycle. We also discuss how each system within the global Si cycle might change over time (i.e., sources, sinks, and processes) and the potential technical and conceptual limitations that need to be considered for future studies.</p>},
  articleno    = {112},
  author       = {Sutton, Jill N. and André, Luc and Cardinal, Damien and Conley, Daniel J. and De Souza, Gregory F. and Dean, Jonathan and Dodd, Justin and Ehlert, Claudia and Ellwood, Michael J. and Frings, Patrick J. and Grasse, Patricia and Hendry, Katharine and Leng, Melanie J. and Michalopoulos, Panagiotis and Panizzo, Virginia N. and Swann, George E.A.},
  keyword      = {Biogenic silica,Biogeochemical cycles,C-N-O - Si isotopes,Element/Si ratios,Silicon},
  language     = {eng},
  month        = {01},
  publisher    = {Frontiers Research Foundation},
  series       = {Frontiers in Earth Science},
  title        = {A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements},
  url          = {http://dx.doi.org/10.3389/feart.2017.00112},
  volume       = {5},
  year         = {2018},
}