Αποτελέσματα Αναζήτησης
1 Ιαν 2005 · Flow diagram showing the silicon cycle in the world oceans (10 12 moles yr −1). Heavy arrows represent solid phase biogenic silica (BSi) and light arrows represent dissolved silica (DSi).
- Chapter 8
Most of the manganese and iron transported to the oceans is...
- Chapter 8
3 Ιαν 2013 · For nearly 20 years, the marine silica budget compiled by Tréguer et al. (1995), with its exploration of reservoirs, processes, sources, and sinks in the silica cycle, has provided context...
Diatoms have long been thought to dominate the marine silicon (Si) cycle, as well as play an important role in the ocean's carbon (C) export, due to density-driven particle sedimentation.
The marine component of SGD, driven by a range of physical processes such as density gradients or waves and tides, is fed by seawater that circulates through coastal aquifers or beaches via...
Silicon (Si) cycle is one of Earth’s major biogeochemical cycles. Furthermore, the dissolved form of Si (DSi) is an essential nu- trient for both terrestrial and marine ecosystems.
18 Φεβ 2021 · The element silicon (Si) is required for the growth of silicified organisms in marine environments, such as diatoms. These organisms consume vast amounts of Si together with N, P, and C, connecting the biogeochemical cycles of these elements.
Understanding the silica cycle is important for understanding the functioning of marine food webs, biogeochemical cycles, and the biological pump. Silicic acid is delivered to the ocean through six pathways as illustrated in the diagram above, which all ultimately derive from the weathering of the Earth's crust.
