Trenton Group
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The Trenton Group is a geologic unit in
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
and
Michigan Michigan ( ) is a peninsular U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, Upper Midwestern United States. It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, ...
,
Ohio Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...
, New York State and
Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
,
Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...
, and
West Virginia West Virginia is a mountainous U.S. state, state in the Southern United States, Southern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States.The United States Census Bureau, Census Bureau and the Association of American ...
in the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
. It dates back to the
Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...
period.


See also

* List of fossiliferous stratigraphic units in Michigan *
Trenton Gas Field The Trenton Gas Field is located in east central Indiana and the most western portion of west central Ohio. The field was discovered in 1876, but the size and magnitude of the field was not known until the 1880s. The field was the largest natural g ...
*
Indiana gas boom The Indiana gas boom was a period of active drilling and production of natural gas in the Trenton Gas Field, in the US state of Indiana and the adjacent northwest part of Ohio. The boom began in the early 1880s and lasted into the early 20th cent ...
*
Petroleum industry in Ohio The petroleum industry in Ohio dates from 1859. Ohio continues to produce significant quantities of oil and gas, having produced more than 1 billion barrels of oil and 9 trillion cubic feet of natural gas since 1860. Unconventional resources, p ...


References

* Ordovician System of North America Ordovician Michigan Ordovician geology of New York (state) Ordovician geology of Virginia Ordovician southern paleotemperate deposits Middle Ordovician Series Limestone formations of the United States Limestone groups of Canada Chert groups {{NewYork-geologic-formation-stub