Vernon Formation

Vernon Formation
Stratigraphic range: Homerian ~430–428 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	Salina Group, Wills Creek and Bloomsburg
Sub-units	Lower Vernon (unit A) Middle Vernon (unit B) Upper Vernon (unit C)
Underlies	Syracuse Formation
Overlies	Lockport
Location
Region	New York  Pennsylvania
Country	United States
Type section
Named for	Vernon, New York
Named by	J.M. Clarke

The Vernon Formation is a geologic formation in the Appalachian Basin. It is the lowest unit of the Salina Group. It is made up of red and green shales, siltstone, dolomite, anhydrite and halite. It is made up of three distinct units starting at the bottom (oldest) A, B and C units. These units correspond to units of the same name in its parent group the Salina.^[1]