Simple Lithology


alt label
clastic mudstone more like this
mudrock more like this
broader clastic sedimentary rock
narrower clastic mudstone
generic mudstone
narrower clastic mudstone
definition Clastic sedimentary rock consisting of less than 30 percent gravel-size (2 mm) particles and with a mud to sand ratio greater than 1. more like this
example argillite more like this
narrower claystone
broader clastic mudstone
broader clastic mudstone
broader clastic mudstone
note Distinction of intrabasinal, diagenetic, or clastic genesis for very fine-grained carbonate minerals is interpretive in many cases. If there is uncertainty on the mudstone category based on intrabasinal vs epiclastic distinction required for clastic sedimentary rock-carbonate sedimentary rock categorization in this system, it is recommended to use the generic_mudstone category. This category is the union of the various fields labeled 'mudstone' with various qualifiers in Folk, 1954, Figure 1a, although Folk's (1954) category labeled 'mudstone' is a much more restricted category. The CGI category is equivalent to category labeled 'Mudrock' in SLTTs (2004), not to the category labeled 'Mudstone' adopted by that system from Folk (1954). Schnurrenberger, D., Russell, J. and Kelts, K., 2003, Classification of lacustrine sediments based on sedimentary components: Journal of Paleolimnology, v.29, p141-154. more like this
source Pettijohn et al. 1987 referenced in Hallsworth and Knox 1999. more like this
in scheme simplelithology
is primary topic of clastic mudstone