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Showing 1 to 5 of 5 for “"Lignite -- North Dakota"”.
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Experiments in the Explosive Pulverization of North Dakota Lignite
… States Bureau of Mines and the University of North Dakota have conducted extensive investigation aimed toward the up-grading of lignite coal. These investigations include steam drying, carbonation, briquetting, and gasification of North Dakota lignite. Research work by both the Bureau of Mines …
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The geohydrology and hydrogeochemistry of the proposed Garrison Lignite Mine
… study is a necessity before the opening of any lignite mine in North Dakota. The study becomes an important reference for the environmental impact during mining and after reclamation.</p> <p>This report is a groundwater study of the Proposed Garrison Lignite Mine, McLean County, North Dakota. …
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A survey of 24 elements in North Dakota lignite (Fort Union Group, Paleocene) and possible geologic implications
… carbonaceous shale, lignitic shale, and lignite samples were collected from western North Dakota for element analysis during May 1978, April 1979, and August 1979. Lignite was collected from the Sentinel Butte Formatlon--Hagel Bed (Oliver and McClean Counties), Beulah-Zap Bed (Mercer …
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A mineralogical study of the Harmon lignite bed, Bullion Creek Formation (Paleocene), Bowman County, North Dakota
<p> Study of the Harmon lignite bed at the Gascoyne Mine in Bowman County, North Dakota showed that most of the minerals in the coal lithobodies were detrital in origin and that variable ash deposition during combustion may be caused by variations in types and quantities of mineral phases. </p><p> …
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Western North Dakota lignite strip mining processes and resulting subsurface characteristics
<p>Data on subsurface conditions obtained prior to strip mining is useful in planning effective mining and reclamation procedures as well as predicting the subsurface characteristics after reclamation. The redistribution of the overburden sediments is less predictable, however.</p> <p>Through field …