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  2. Marcellus Formation - Wikipedia

    en.wikipedia.org/wiki/Marcellus_Formation

    The term "Marcellus Shale" is the preferred name throughout most of the Appalachian region, although the term "Marcellus Formation" is also acceptable within the State of Pennsylvania. [7] The unit was first described and named as the "Marcellus shales" by J. Hall in 1839.

  3. Marcellus natural gas trend - Wikipedia

    en.wikipedia.org/wiki/Marcellus_natural_gas_trend

    The Marcellus natural gas trend is a large geographic area of prolific shale gas extraction from the Marcellus Shale or Marcellus Formation, of Devonian age, in the eastern United States. [2] The shale play encompasses 104,000 square miles and stretches across Pennsylvania and West Virginia, and into eastern Ohio and western New York. [ 3 ]

  4. Mahantango Formation - Wikipedia

    en.wikipedia.org/wiki/Mahantango_Formation

    The Devonian Mahantango Formation is a mapped bedrock unit in Pennsylvania, West Virginia, and Maryland. [1] [2] [3] It is named for the North branch of the Mahantango Creek in Perry and Juniata counties in Pennsylvania. It is a member of the Hamilton Group, along with the underlying the Marcellus Formation Shale. [4]

  5. Southwestern Doubles Down on the Marcellus - AOL

    www.aol.com/2013/04/29/southwestern-doubles-down...

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  6. Washington Township, Westmoreland County, Pennsylvania

    en.wikipedia.org/wiki/Washington_Township...

    Washington Township is a township in Westmoreland County, Pennsylvania, United States. It was founded in 1789 from Salem Township. At that time, it included the present-day municipalities of Allegheny, Lower Burrell, Upper Burrell, and most of Bell. In 2020, the population of Washington Twp was 6,887. [2]

  7. Northern Tier (Pennsylvania) - Wikipedia

    en.wikipedia.org/wiki/Northern_Tier_(Pennsylvania)

    The Northern Tier region as a whole is notorious for its high unemployment and low per-capita incomes in comparison to the rest of Pennsylvania, though the discovery of the Marcellus Formation provided an economic boost in the 2000s and 2010s. The region's top two employers are government-funded services, specifically health care and education ...

  8. List of mapped rock formations in Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/List_of_mapped_rock...

    The following is a list of the mapped bedrock units in Pennsylvania. The rocks are listed in stratigraphic order. ... System Group name Formation name Member name Map ...

  9. Helderberg Group (geology) - Wikipedia

    en.wikipedia.org/wiki/Helderberg_Group_(geology)

    In Maryland and southern Pennsylvania, the Helderberg is divided into three formations. These are the New Creek Limestone, the Corriganville Limestone, and the Mandata Shale. The total thickness is about 60 feet. The formations weather easily and are poorly exposed except in cuts and quarries. [4]