Assertion: biogenic silica | /r/AtLocation | surface waters
Facets:
Source sentences:
text: In this high-latitude environment, approximately one-third of the biogenic silica produced in surface waters is exported from the euphotic zone, with most of this material (27% of production) making it to the seabed some 500–900 m below.
text: On a global basis, approximately 3% of the biogenic silica produced in surface waters is buried in the seabed.