Activities per year
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, freshwater and terrestrial systems. We place emphasis on the geochemistry (e.g. Al/Si, Ge/Si, Zn/Si, 13C, 15N, 18O, 30Si) 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.
Original language | English |
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Article number | 112 |
Number of pages | 24 |
Journal | Frontiers in Marine Science |
Volume | 5 |
DOIs | |
Publication status | Published - 30 Jan 2018 |
Keywords
- C – N – O - Si isotopes
- biogenic silica
- element/Si ratios
- biogeochemical cycles
- silicon
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Dive into the research topics of 'A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements'. Together they form a unique fingerprint.Activities
- 1 Fellowship awarded competitively
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University Research Fellowship - The role of ocean circulation on the marine silicon cycle and global climate .
Hendry, K. (Recipient)
1 Oct 2013 → 1 Oct 2018Activity: Other activity types › Fellowship awarded competitively