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mudrock
Sign in to saveAlso known as argillaceous rock
thumb|Glacial Lake Missoula claystone thumb|Red mudrock in the Ragged Reef Formation (Pennsylvanian (geology)|Pennsylvanian), Cumberland Basin, Nova Scotia
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~20 min read
Article
22 sectionsContents
- Nomenclature
- Claystone
- Mudstone
- Siltstone
- Shale
- Slate
- Creation of mud and mudrocks
- Mud transport and supply
- Mudrock depositional environments
- Alluvial environments
- Glaciers
- Non-glacial lakes
- Deltas
- Coastlines
- Marine environments
- The mudrock cycle
- Important properties
- Color
- Fossils
- Petroleum and natural gas
- Importance
- References
thumb|Glacial Lake Missoula claystone thumb|Red mudrock in the Ragged Reef Formation (Pennsylvanian (geology)|Pennsylvanian), Cumberland Basin, Nova Scotia
Mudrocks are a class of fine-grained siliciclastic sedimentary rocks. The varying types of mudrocks include siltstone, claystone, mudstone and shale. Most of the particles of which the stone is composed are less than and are too small to study readily in the field. At first sight, the rock types appear quite similar; however, there are important differences in composition and nomenclature.