mudstone (Carbonate)

Keyword Definition

Mudstone that consists of greater than 50 percent carbonate minerals of any origin in the mud size fraction.


Not a subcategory of carbonate sedimentary rock because definition does not specify 'carbonate minerals of intrabasinal origin', but is agnostic on origin of carbonate.

Schnurrenberger et al. 2003 point out that it is very difficult (at least in lacustrine rocks) to distinguish chemically precipitated or diagenetic carbonate from primary biogenic carbonate. This distinction between biogenic, detrital, and pedogenic or authigenic carbonate material is thus not a good one to use in a general purpose classification system. Schnurrenberger, D., Russell, J. and Kelts, K., 2003, Classification of lacustrine sediments based on sedimentary components: Journal of Paleolimnology, v.29, p141-154.

This vocabulary

See Also: marlstone, calcareous loess

Parents: Carbonate sedimentary rock (47); Generic mudstone (118)

Children: Pure carbonate mudstone (202)

[Description taken from GeoSciML SimpleLithology201012.rdf]

Hierarchical classification

Sample >> Lithosphere >> Rock >> Whole >> Rock >> Sedimentary >> Carbonate >> mudstone


Pure (carbonate mudstone)

Category: Analysed material

The different kinds of sample material collected in the field have been classified hierarchically. Examples: “till”, “soil”, “vegetation”. Taken from the “Sample_Types_SHARED” database table.

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