Preliminary report on the geology of the near-surface coal beds in the Knife River area, North Dakota

Technical Report · Sat Jan 01 04:00:00 EST 1977

OSTI ID:6622388

Law, R

The Knife River Study area covers approximately 1900 mi/sup 2/ (4921 km/sup 2/) in western North Dakota. This report describes the structure and stratigraphy of the Sentinal Butte Member and the HT Butte lignite bed of the Tongue River Member of the Fort Union Formation (Paleocene). The subsurface data are based om well logs, correlation diagrams, and structure contour and isopach maps of the lignite beds. Stratigraphic locations and names of the lignite beds are shown. As many as 13 lignite beds may occur at any location, as shown on geophysical logs. This report describes only the four most continuous beds. In ascending stratigraphic order these beds are: the HT Butte bed of the Tongue River Member, and the Schoolhouse, Beulah-Zap, and Hazen beds of the Sentinel Butte Member.

• Research Organization: Geological Survey, Washington, DC (USA)
• OSTI ID: 6622388
• Report Number(s): USGS-OFR-77-485
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
011000* -- Coal
Lignite
& Peat-- Reserves
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& Exploration
BROWN COAL
CARBONACEOUS MATERIALS
COAL
COAL DEPOSITS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAMMA LOGGING
GAMMA-GAMMA LOGGING
GEOLOGIC DEPOSITS
GEOLOGY
LIGNITE
LITHOLOGY
NORTH AMERICA
NORTH DAKOTA
RADIOACTIVITY LOGGING
RESOURCES
ROCKY MOUNTAIN REGION
STRATIGRAPHY
USA
WELL LOGGING