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Resource: used or used up in processes

Silicic acid

Appears in 2 processs and 5 steps. Everything below is linked: open a process to see it in context.

Top processes

Marine silicon cycle: inputs, diatom uptake, opal export and burial

4 steps

Rivers, groundwater, dust, hydrothermal vents and seafloor weathering supply about 14.8 Tmol of dissolved silicon a year (57% more than earlier budgets)
Diatoms take up silicic acid to build opal frustules: about 255 Tmol Si a year of pelagic production, plus about 6 Tmol by sponges on the seafloor
Dissolves back to silicic acid in the water column and surface sediments (about 94%, computed from the budget)
and 1 more in this process

Marine biological pump and ocean life

1 step

Marine silicon cycle: inputs, diatom uptake, opal export and burial

Often found with

Diatoms 3 Biogenic silica 3 Rivers 2 Sponges 2 Hydrothermal vents 1 Dust 1 Phytoplankton 1 Marine bacteria 1 Ocean 1

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