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Hathaway Formation

Hathaway Formation - Gray to black argillite and bedded radiolarian chert, with included blocks and fragments of chert, limestone, dolomite, sandstone and graywacke.
StateVermont
NameHathaway Formation
Geologic ageOrdovician
Original map labelOha
CommentsPart of Champlain and Vermont Valleys, Trenton Group
Primary rock typeargillite
Secondary rock typechert
Other rock typeslimestone; dolostone (dolomite); sandstone; graywacke
Lithologic constituents
Major
Sedimentary > Chemical > Chert (Bed)bedded radiolarian chert, with included blocks and fragments of chert
Metamorphic > Metasedimentary > Metaclastic > Argillite
Incidental
Sedimentary > Clastic > Sandstone > Graywacke (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Carbonate > Dolostone (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Map references
Nicholson, S.W., Dicken, C.L., Horton, J.D., Foose, M.P., Mueller, J.A.L., and Hon, Rudi, 2006, Preliminary integrated geologic map databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, and Vermont: U.S. Geological Survey Open-File Report 2006-1272.
Unit references
Doll, C.G., Cady, W.M., Thompson, J.B., Jr., and Billings, M.P., 1961, Centennial Geologic Map of Vermont: Vermont Geological Survey, Miscellaneous Map MISCMAP-01, scale 1:250,000.
Geographic coverageChittenden - Franklin - Grand Isle

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