State | Vermont |
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Name | Walloomsac Formation |
Geologic age | Upper Ordovician |
Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > ShaleDark-gray siliceous shale and phyllite.
Sedimentary > Carbonate > Limestone (Bed)Containing thin beds of bluish-gray argillaceous limestone.
Metamorphic > Metasedimentary > Metaclastic > PhylliteDark-gray siliceous shale and phyllite.
Minor
Metamorphic > Metasedimentary > Metaclastic > QuartziteMinor beds of gray to tan quartzite.
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References | |
NGMDB product | |
Counties | Bennington - Rutland |