Simple Lithology

clay

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

definition Mud that consists of greater than 50 percent particles with grain size less than 0.004 mm more like this
source based on SLTTs 2004; Neuendorf et al. 2005; particle size from Wentworth grade scale more like this
type
Resource
Concept
broader mud
narrower clay
in scheme simplelithology
is primary topic of clay