Mudstone facts for kids
These are some of the oldest rocks in the Dingle Peninsula, being Silurian in date. They consist of mudstones and siltstones with some volcanic material (County Kerry)
A mudstone is a siliciclastic sedimentary rock which has a mixture of silt- and clay-sized particles (at least 1/3 of each). So, a mudstone is a type of mudrock with a more varied grain size than either siltstones or claystones.
Alternatively, some sources say it is a synonym for mudrock.
Contents
Claystone
A claystone is a mudrock which does not split easily.
In order for a rock to be a claystone, it must be up to half (50%) clay, whose particles measure less than 1/256th of a millimeter.
Related pages
Images for kids
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Mudstone on east beach of Lyme Regis, England
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A Mudstone: few small components in a micritic matrix, width of picture is 32 mm
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Thin section photomicrograph of carbonate mudstone
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See also
In Spanish: Lutolita para niños
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Mudstone Facts for Kids. Kiddle Encyclopedia.