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Sonyea Formation

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(Redirected from Sonyea Group) Geologic group
Sonyea Group
Stratigraphic range: Frasnian
TypeGroup
Unit ofFrasnian
Sub-unitsSee text
UnderliesWest Falls Group
OverliesGenesee Group and Harrell Shale
Lithology
PrimaryShale
OtherSiltstone
Location
RegionAppalachian Basin of eastern North America
CountryUnited States

Stratigraphic cross-section of the Sonyea Formation in New York State

The Sonyea Group is a geologic group in the northern part of the Appalachian Basin. It preserves fossils dating back to the Devonian period.

In the western part, it is divided into the Cashaqua Shale at the top, and the Middlesex Shale at the bottom. In the east, various shale formations are included between the Cashaqua and Middlesex members, including Rye Point Shale, Rock Stream Formation ("Enfield Formation") Siltstone, Pulteney shale, Sawmill Creek Shale, Johns Creek Shale and Montour Shale.

See also

References

  1. ^ "Sonyea Group". USGS. Retrieved 2015-09-17.
  2. Colton, George W.; de Witt, Wallace Jr. (1958). "Stratigraphy of the Sonyea Formation of Late Devonian Age in Western and West-Central New York". United States Geological Survey. United States Department of the Interior. Retrieved 22 September 2015.
  3. Rickard, L.V.; Isachsen, Y.W.; Fisher, D.W. (1970). "Geologic map of New York: Finger Lakes sheet". New York State Museum. Retrieved 2015-09-17.
  4. "Sonyea Group (NYDs;5) on Sonyea Group (NYDs;5)".
Chronostratigraphy of New York
Ph
Pz
D
Upper
Famennian
Frasnian
Middle
Givetian
Eifelian
Lower
Emsian
S
Pridoli
Ludlow
Ludfordian
Gorstian
Wenlock
Homerian
O
Upper
Katian
Sandbian
Black River Group
Lowville Formation
Chronostratigraphy of Pennsylvania
Ph
Pz
P
Cisuralian
Dunkard Group

Greene Formation:

Washington Formation:
C
Gzhelian
Dunkard Group

Waynesburg Formation:
Monongahela Group

Uniontown Formation:

Pittsburgh Formation:
Kasimovian
Conemaugh Group

Casselman Formation:
Glenshaw Formation
Mahoning Formation
Moscovian
Allegheny Group

Freeport Formation:
Kittanning Formation
Clarian Formation
Pottsville Group

Beaver River Formation:
Mercer Formation
Bashkirian
Pottsville Group

Connoquenessing Formation:
Sharon Formation
M
Serpukhovian
Mauch Chunk Group
Viséan
Tournaisian
Pocono Group
D
Upper
Famennian
Venango Group
  • Gantz, Hundred-foot sand, Fifty-foot sand, Thirty-foot sand, Nineveh-Snee, Gordon Stray, Fourth Sand, Fifth Sand, Bayard Sand, Elizabeth Sand, Sweet Richard,
    Chadakoin Formation, First Warren
Bradford Group
  • Upper Warren, Lower Warren, Speechely Stray, Speechely, Balltown A, Balltown B, Balltown C, Sheffield, First Bradford, Second Bradford, Third Bradford, Kane
Elk Group
  • 1st Elk Sand, 2nd Elk Sand, 3rd Elk Sand, 4th Elk Sand, 5th Elk Sand
Ohio Shale
Catskill Group
Frasnian
Catskill Group
West Falls Group
Sonyea Group
Genesee Group / Harrell Shale
Middle
GivetianTully Limestone
Hamilton Group
Eifelian
Hamilton Group
Onondaga Limestone
  • Seneca
    Moorehouse
    Nedrow
    Edgecliff
Lower
Emsian
Huntersville Chert, Needmore Shale, Bois Blanc Formation
Oriskany Formation
Helderberg Group (geology)
Pragian
Helderberg Group (geology)
Lochkovian
Helderberg Group (geology)
S
Pridoli
Salina Group
Ludlow
Ludfordian
Salina Group
Gorstian
Salina Group
Wenlock
Homerian
Salina Group
Lockport Group
Llandovery
Clinton Group
Medina Group
O
Upper
Trenton Group
Black River Group

Loyalsburg Formation

Middle
Lower
Knox Supergroup
Beekmantown Group
Є
Furongian
Series 2
Stage 4
  • Grenville Complex
  • Chronostratigraphy of West Virginia
    Ph
    Cz
    Pe
    EoceneIgneous intrusives
    Mz
    JIgneous intrusives
    Pz
    P
    Cisuralian
    Asselian
    C
    Gzhelian
    Kasimovian
    Moscovian
    Bashkirian
    M
    Serpukhovian
    Viséan
    Tournaisian
    D
    Upper
    Famennian
    Frasnian
    Middle
    Givetian
    Eifelian
    Lower
    Emsian
    Pragian
    Lochkovian
    S
    Pridoli
    Ludlow
    Ludfordian
    Gorstian
    Wenlock
    Homerian
    Sheinwoodian
    Llandovery
    Telychian
    Aeronian
    O
    Upper
    Hirnantian
    Katian
    Sandbian
    Middle
    Darriwilian
  • Trenton Limestone
  • Black River Group
  • Dapingian
    Lower
    Tremadocian
  • Wells Creek Formation
  • Knox Group
    Є
    Furongian
    Stage 10
    Knox Group
    Chilhowee Group
    Antietam Formation
    Harpers Formation
    Weverton Formation
    Loudoun Formation
    Z
    Ediacaran
  • Catoctin Formation

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