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18 Φεβ 2021 · We discuss the question of the balance and imbalance of the marine Si biogeochemical cycle at different timescales, and we hypothesize that the modern ocean Si cycle is potentially at steady state with inputs Tmol Si yr−1 approximately balancing outputs Tmol Si yr−1 (Fig. 1).
26 Αυγ 2019 · Silicon (Si) is a pivotal element in the biogeochemical and ecological functioning of the ocean. The marine Si cycle is thought to be in internal equilibrium, but the recent discovery of Si...
The resulting budget recognizes significantly higher input and output fluxes and notes that the recycling of silicon occurs mostly at the sediment-water interface and not during the sinking of silica particles through deep waters.
3 Ιαν 2013 · Over the past few decades, we have realized that the silica cycle is strongly intertwined with other major biogeochemical cycles, like those of carbon and nitrogen, and as such is intimately...
17 Ιαν 2022 · The South China Sea (SCS) is one of the largest marginal seas in the world, but the processes that control the silicon cycle are not well understood. Here, we analyse the factors that affect the distribution of biogenic silica (bSi) in SCS sediments and discuss the silicon cycle based on a box model.
15 Δεκ 2000 · This review of the Si cycle in the modern ocean starts with the mechanisms that control the uptake of silicic acid (Si(OH) 4) by diatoms and the subsequent silicification processes, the regulatory mechanisms of which are uncoupled.
Silicon isotope ratios in diatom bSiO 2 have been used widely as a proxy for marine DSi utilization in surface waters due to the preferential fractionation of the lighter isotope of Si during diatom silicification (see section Marine for more detail).
