Simple Lithology

boulder gravel size sediment

http://resource.geosciml.org/classifier/cgi/lithology/boulder_gravel_size_sediment

definition Sediment containing greater than 30 percent boulder-size particles (greater than 256 mm in diameter) more like this
source Wentworth size scale more like this
type
Resource
Concept
broader gravel size sediment
narrower boulder gravel size sediment
in scheme simplelithology
is primary topic of boulder gravel size sediment