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Lockport Group information


Lockport Group
Stratigraphic range: Sheinwoodian-Homerian
~433–427 Ma
PreꞒ
O
S
D
C
P
T
J
K
Pg
N
TypeGroup
Unit ofCayugan Series
Sub-units
  • Guelph Formation
  • Eramosa Formation
  • Goat Island Formation
  • Gasport Formation
UnderliesVernon Formation
OverliesClinton Group
Lithology
PrimaryDolomite
OtherLimestone, Chert
Location
RegionLockport Group New York, Lockport Group Ohio, Lockport Group Pennsylvania, Lockport Group West Virginia
CountryLockport Group United States, Lockport Group Canada
ExtentAppalachian Basin, Michigan Basin

The Lockport Group is a geologic group in the Appalachian Basin and Michigan Basin in the northeastern United States and Canada. This unit makes up the Niagara Escarpment. Its most famous feature is Niagara Falls. The unit outcrops in New York, Ontario, Michigan, Wisconsin, and Illinois.[1]

  1. ^ Kelly, Peter E. (2007). The last stand : a journey through the ancient cliff-face forest of the Niagara Escarpment. Douglas W. Larson. Toronto: Natural Heritage Books. ISBN 978-1-55488-332-5. OCLC 768163291.

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Lockport Group

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The Lockport Group is a geologic group in the Appalachian Basin and Michigan Basin in the northeastern United States and Canada. This unit makes up the...

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Clinton Group

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in Pennsylvania. It is overlain by the shales and carbonates of the Lockport Group in New York, the McKenzie Formation in Pennsylvania, and the Sneedville...

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Gasport Formation

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Ohio Basin. It is a part of the Lockport Group of carbonates. It is the lowest and oldest formation within the Lockport. The Gasport is found in Michigan...

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Goat Island Formation

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the Appalachian Basin. It is one of the formations that make up the Lockport Group of the Silurian period. Goat Island, USGS, National Geologic Map Database...

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Salina Group

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predominantly the Lockport; in parts central to northeast Pennsylvania it overlies the Bloomsburg Formation. It also underlies the Helderberg Group. Being a thick...

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Medina Group

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correlations of the Niagaran provincial series (Medina, Clinton, and Lockport groups) in the type area of western New York" (PDF). U.S. Geological Survey...

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Eramosa Member

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44.6; -81.1 The Eramosa Member is a Silurian stratigraphic unit of the Lockport Formation exposed along the Niagara Escarpment in Ontario and western New...

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Monongahela Formation

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and Maryland. It is dated to the Carboniferous period. The top of the group is marked by the Waynesburg Coal (No. 11 Coal) and its base is marked by...

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West Falls Group

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Falls Group is a geologic group in the Appalachian Basin. It dates back to the Devonian period. Also stratigraphically equivalent to the Portage Group. The...

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Marcellus Formation

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classified as the basal unit of the Hamilton Group (Dh), lying beneath the Mahantango Formation (Dmh) member of this group in Pennsylvania and Maryland. In New...

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Knox Supergroup

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The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is...

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Rhinestreet Formation

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Homerian Lockport Group Gasport Dolomite Guelph Dolomite Goat Island Dolomite...

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Trenton Group

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The Trenton Group is a geologic unit in Canada and Michigan, Ohio, New York State and Indiana, Pennsylvania, and West Virginia in the United States. It...

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Dunkard Group

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The Permian Dunkard Group (Pd) is an area of rock, Early Permian in age, in the south of Ohio, southwestern Pennsylvania, West Virginia and the hilltops...

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Ohio Shale

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Homerian Lockport Group Gasport Dolomite Guelph Dolomite Goat Island Dolomite...

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Burket Shale

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Shale or Geneseo Shale is the lowest member of the Harrell Shale/Genessee Group. The Burket is an organic-rich black shale that rests just above the Tully...

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Catskill Group

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The Devonian Catskill Group or the Catskill Clastic wedge is a unit of mostly terrestrial sedimentary rock found in Pennsylvania and New York. Minor marine...

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Allegheny Group

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The Allegheny Group, often termed the Allegheny Formation, is a Pennsylvanian-age geological unit in the Appalachian Plateau. It is a major coal-bearing...

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Cincinnati Group

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The Cincinnati Group is a geologic group in Kentucky, Ohio and Indiana. It is Upper Ordovician. Earth sciences portal United States portal Ohio portal...

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Damen Group

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the Damen 4708 design, and will be built by the Bollinger Shipyards of Lockport, Louisiana. The firm fixed-price contract for the first ship is worth €88m...

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Chagrin Shale

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Homerian Lockport Group Gasport Dolomite Guelph Dolomite Goat Island Dolomite...

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Lockport AFS

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Lockport Air Force Station is a closed United States Air Force ADCOM General Surveillance Radar station in Cambria, New York. Initially established at...

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Hampshire Group

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Homerian Salina Group Vernon Formation Lockport Group Guelph Formation Eramosa Formation Goat Island Formation Gasport Formation...

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Onondaga Limestone

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The Onondaga Limestone is a group of hard limestones and dolomites of Devonian age that forms geographic features in some areas in which it outcrops;...

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Tully Formation

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Homerian Salina Group Vernon Formation Lockport Group Guelph Formation Eramosa Formation Goat Island Formation Gasport Formation...

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Genesee Formation

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The Genesee Formation (Group) is a geologic formation in New York. It is equivalent the Harrell Shale in Pennsylvania. It date back to the Upper Devonian...

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Hamilton Group

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The Hamilton Group is a Devonian-age geological group which is located in the Appalachian region of the United States. It is present in New York, Pennsylvania...

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