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Three Forks Formation


  • URI(s)

  • Instance Of

  • Scheme Membership(s)

  • Collection Membership(s)

  • Variants

    • Three Forks Shales
  • Broader Terms

  • Closely Matching Concepts from Other Schemes

  • Sources

    • found: Work cat.: Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016, 2017:page 1 (Three Forks Formation; Late Devonian to Early Mississippian)
    • found: Assessment of Undiscovered Oil Resources in the Bakken and Three Forks Formations, Williston Basin Province, Montana, North Dakota, and South Dakota, 2013, 2013:page 2 (The Three Forks Formation consists of interbedded grayishgreen dolomitic mudstones, pink to tan silty dolostones, and anhydrite. It is unconformably overlain by the Pronghorn Member of the Bakken Formation. The Three Forks Formation reaches a maximum thickness of 270 feet in the central portion of the basin (Bottjer and others, 2011) and is divided stratigraphically into lower and upper units, with variable oil saturations)
    • found: Nomenclature and correlation of lithologic subdivisions of the Jefferson and Three Forks Formations of southern Montana and northern Wyoming, 1965:page N1 (Three Forks Formation (Devonian and Mississippian) comprises the Logan Gulch, Trident, and Sappington Members; These members are described at the classic type section of the Jefferson and Three Forks Formations near Logan, Mont., and their distribution in southern Montana and northern Wyoming) page N7 (The name Three Forks Shales was applied by Peal to beds resting on the Jefferson Formation and underlying his Madison Limestone of Mississippian age north of the Gallatin and East Gallatin Rivers and east of the junction of the three forks of the Missouri River; name was changed to Three Forks Formation by Haynes because "the strata called the Three Forks Shales by Dr. Peale are a composite series and include limestones and shales and some sandstones")
    • found: Shale Experts WWW site, Oct. 13, 2017:Bakken Shale & Three Forks Overview (map shows Three Forks formation in Saskatchewan, Manitoba, North Dakota, South Dakota, and Montana)
    • notfound: GNIS, September 5, 2017;Col. Lipp. Gaz.
  • Change Notes

    • 2017-09-05: new
    • 2017-11-03: revised
  • Alternate Formats

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