Preliminary report on 1975 drilling of lignites in western North Dakota: Adams, Bowman, Dunn, Hettinger, McLean, Mercer, Oliver, Slope, and Williams Counties

Technical Report · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7311296

A drilling program was conducted in western North Dakota by the North Dakota Geological Survey under a grant from the U.S. Geological Survey. The drilling was done as part of the U.S. Geological Survey's program to evaluate and classify mineral lands in the public domain. The purpose of the program was to gather data on the thickness, quality, extent, and recoverability of lignite beds and the lithologic characteristics of the coal-bearing unit, the Fort Union Formation (Paleocene), in western North Dakota. Geophysical logs, lists of lignite beds, and locations of the test holes are included. The descriptive terms, sand, silt, and clay, reported by the geologist, were modified to sandstone, siltstone, and claystone to conform to the U.S. Geological Survey's policy of using lithologic (rock-unit) terms for bedrock formations. A core sample was taken from one test hole and is currently being analyzed for proximate analyses, Btu/lb values, form of sulfur present, and trace elements. Chemical analyses are also being run on the ash. Samples were described as collected and no depth adjustments based on logs were made. The lists of lignite beds were made from the density logs.

• Research Organization: Geological Survey, Washington, DC (USA); North Dakota Geological Survey, Grand Forks (USA)
• OSTI ID: 7311296
• Report Number(s): USGS-OFR-76-869
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
011000* -- Coal
Lignite
& Peat-- Reserves
Geology
& Exploration
ASHES
BROWN COAL
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CLAYS
COAL
COAL DEPOSITS
COMBUSTION PROPERTIES
DRILLING
ENERGY SOURCES
EVALUATION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
INFORMATION
LIGNITE
LITHOLOGY
MAPS
MINERALS
NORTH AMERICA
NORTH DAKOTA
RESIDUES
RESOURCES
ROCKS
ROCKY MOUNTAIN REGION
SANDSTONES
SEDIMENTARY ROCKS
SILT
TABLES
USA