Journal ArticleDOI
A review of the Si cycle in the modern ocean: recent progress and missing gaps in the application of biogenic opal as a paleoproductivity proxy
Olivier Ragueneau,Paul Tréguer,Aude Leynaert,Robert F. Anderson,Mark A. Brzezinski,David J. DeMaster,Richard C. Dugdale,Jack Dymond,Gerhard Fischer,Roger Francois,Christoph Heinze,Ernst Maier-Reimer,Véronique Martin-Jézéquel,David M. Nelson,Bernard Quéguiner +14 more
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TLDR
In this article, a 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.About:
This article is published in Global and Planetary Change.The article was published on 2000-12-15. It has received 689 citations till now. The article focuses on the topics: Biogenic silica & Biological pump.read more
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High-latitude controls of thermocline nutrients and low latitude biological productivity
TL;DR: In this article, the authors make use of the combined distributions of silicic acid and nitrate to trace the main nutrient return path from deep waters by upwelling in the Southern Ocean and subsequent entrainment into subantarctic mode water.
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Upper ocean ecosystem dynamics and iron cycling in a global three-dimensional model
TL;DR: In this article, a global three-dimensional marine ecosystem model with several key phytoplankton functional groups, multiple limiting nutrients, explicit iron cycling, and a mineral ballast/organic matter parameterization is run within a global ocean circulation model.
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Growth physiology and fate of diatoms in the ocean: a review
TL;DR: This review is a synthesis of a large number of published laboratory experiments using monospecific cultures as well as field data that confirms that size is an important factor explaining variations of biogeochemical parameters of diatoms (e.g. maximum growth rate, photosynthesis parameters, half-saturation constants, sinking rate, and grazing).
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Concentration–discharge relationships reflect chemostatic characteristics of US catchments
TL;DR: In this paper, the authors examined concentration-discharge relationships for solutes produced primarily by mineral weathering in 59 geochemically diverse US catchments and found that these catchments exhibit nearly chemostatic behaviour; their stream concentrations of weathering products such as Ca, Mg, Na, and Si typically vary by factors of only 3 to 20 while discharge varies by several orders of magnitude.
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The World Ocean Silica Cycle
TL;DR: 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.
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Geochimica et Cosmochimica Acta. "The carbon isotope biogeochemistry of acetate from methanogenic marine sediment." by N. E. Blair and W. D. Carter Jr. published in 56, 1247-1258
Book
Early Diagenesis: A Theoretical Approach
TL;DR: In this article, Berner developed the mathematical theory of early diagenesis, introducing a general diagenetic equation and discussing it in terms of each major diagenetics process, including diffusion, compaction, pore-water flow, burial advection, bioturbation, adsorption, radioactive decay and especially chemical and biochemical reactions.