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biogenic silica sedimentary rock

definition Sedimentary rock that consists of at least 50 percent silicate mineral material, deposited directly by biological processes at the depositional surface, or in particles formed by biological processes within the basin of deposition. more like this
radiolarite more like this
spicularite more like this
spiculite more like this
source based on NADM SLTT sedimentary; Hallsworth and Knox 1999 more like this
Resource original
Concept original
broader original
narrower biogenic_silica_sedimentary_rock original
in scheme simplelithology original
is primary topic of biogenic_silica_sedimentary_rock