mudstone
Noun
Meaning
mudstone (plural mudstones)
(petrology) A fine-grained sedimentary rock whose original constituents were clays or muds. [from 18th c.]
Synonyms
Phrases with the word
Anagrams
Examples
The mudstone was located in between the Lokochot Tuff and the Tulu Bor Tuff.
The surrounding strata, if shale or mudstone, often contain slightly more than average and this may also be reflected in the ash content of 'dirty' coals.