GEOLOGY | ROCKS | SEDIMENTARY
Conglomerate
A coarse grained with rounded clasts that are greater than 2 mm in size.
SANDSTONE
Formed of cemented sand grains (sometimes in a muddy matrix). Grain sizes between 63 μm and 1000 μm
SILTSTONE
A lithified silt comprising grains between 4 μm and 62.5 μm.
MUDSTONE
An Argillaceous or clay-bearing rock which is non-plastic and has a non-foliated, massive appearance.
Limestone
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Chalk
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coal
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oil shale
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Bedded Chert
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EVAPORITE
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CONCRETIONS
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DOLOMITE
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