Processes of supply and removal of dissolved silicon in the oceans

摘要: Abstract A critical assessment has been made of the processes supply and removal dissolved silicon in ocean. The only sources importance appear to be continental drainage (supplying 4.3 × 1014 g SiO2/yr), Antarctic weathering migration from sediment pore waters. magnitudes last two are uncertain but there is evidence that they may add significantly river input. total input appears lie uncertainly within range 5.12 SiO2/yr. Estimates estuarine mixing (less than 1 SiO2/yr) pelagic siliceous oozes 2 suggest deposition by these not balance Other could include biological coastal waters, hypothesis some sea occurs inorganic processes, such as reverse reactions, cannot discounted.