The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus, New …

The Marcellus Shale, also referred to as the Marcellus Formation, is a Middle Devonian -age, black, low-density, carbonaceous (organic-rich) shale that occurs in the subsurface beneath much of Ohio, …

In the Marcellus Shale, the natural gas varies from wet in the western portion of the state and to dry in the northeast as shown on the map. This geologic cross section depicts the extent and depth of the …

The massive Marcellus shale is arguably the star of the Appalachian Basin plays. It is the largest and one of the deepest natural gas play in the United States, located directly under the Mahantongo and …

Major shale deposits currently being developed in the United States include the Antrim, Barnett, Fayetteville, Haynesville, Marcellus, and Woodford Shale. Those shale deposits all have the …

Mar 4, 2022 · The Middle Devonian Marcellus Shale of the Appalachian Basin is the most extensive shale play in the U.S., covering about 66,600,000 acres (USGS Marcellus Shale Assessment Team, …

The Marcellus Middle Devonian-age organic-rich formation, also known as Marcellus Shale, extends in the subsurface from New York State in the north to northeastern Kentucky and Tennessee in the …

Oct 3, 2019 · The assessment unit map for the Marcellus Shale within the Appalachian Basin. Although it occupies similar areas as the Point Pleasant-Utica Shale, the Marcellus is much younger, having …

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The natural gas is trapped in low-permeability shale, and requires the well completion method of hydraulic fracturing to allow the gas to flow to the well bore. The surge in drilling activity in the …