Shelburne, Whitehall, and Strites Pond Formations (VTOs;0)

Shelburne, Whitehall, and Strites Pond Formations - The Shelburne is chiefly a white marble or gray limestone characterized by raised reticulate lines of gray dolomite on the weathered surface; includes Sutherland Falls marble, intermediate dolomite and Columbian marble of the marble quarries. Interbedded massive dolomite increases westward and predominates in the Whitehall formation, west of Champlain and Orwell thrusts. The Strites Pond, which is identical to the Shelburne, is east of Philipsburg thrust.

State	Vermont
Name	Shelburne, Whitehall, and Strites Pond Formations
Geologic age	Ordovician
Original map label	Os
Comments	Part of Champlain and Vermont Valleys, Beekmantown Group
Primary rock type	marble
Secondary rock type	limestone
Other rock types	dolostone (dolomite)
Lithologic constituents	Major Metamorphic > Metasedimentary > Metacarbonate > Marble Minor Sedimentary > Carbonate > Dolostone Sedimentary > Carbonate > Limestone
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. [http://pubs.er.usgs.gov/publication/ofr20061272]
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 coverage	Addison - Bennington - Chittenden - Franklin - Rutland