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- Geology (42)
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- Geology--North Dakota--McKenzie County; Sedimentation and deposition--North Dakota--McKenzie County (3)
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Articles 361 - 365 of 365
Full-Text Articles in Entire DC Network
The Occurrence And Distribution Of Selenium In North Dakota Ground Waters, Hjalmer V. Peterson
The Occurrence And Distribution Of Selenium In North Dakota Ground Waters, Hjalmer V. Peterson
Theses and Dissertations
No abstract provided.
The Sorption Of Fluoride Ion With Special Reference To Fluoride Removal From Potable Waters, Phillip W. West
The Sorption Of Fluoride Ion With Special Reference To Fluoride Removal From Potable Waters, Phillip W. West
Theses and Dissertations
The recent discovery that even very small concentrations of fluorides in drinking waters are sufficient to cause the serious dental dystrophy commonly known as mottled enamel, has around widespread interest and concern. Federal and State surveys have been conducted to determine the geographical distribution of the malady, and the fluoride contents of water supplies.
County dental surveys, conducted by the United States Public Health Department with the cooperation of local dentists, have located the regions throughout the country where mottled enamel is endemic and among these localities is an area in southeastern North Dakota and adjacent territory in South Dakota …
Geology And Ground Water Resources Of Burke, Divide, Mountrail, And Williams Counties In North Dakota, Andrew G. Alpha
Geology And Ground Water Resources Of Burke, Divide, Mountrail, And Williams Counties In North Dakota, Andrew G. Alpha
Theses and Dissertations
No abstract provided.
A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn
A Study Of The Colloid Obtained From Weathered Lignite, Cecil O. Lohn
Theses and Dissertations
When Lignite is exposed to the action of weather it undergoes various changes, probably due to oxidation. Surface beds of lignite are often rejected by the miners as inferior coal, due to the weathered condition. But when this weathered lignite is treated with sodium hydroxide, and the resulting solution allowed to evaporate to dryness, there is left a hard, shiny substance very similar in appearance to hard coal. This dried product has been exploited under the name of Dakolite. When dispersed in water this product makes a very good wood stain.
Tests made on Dakolite show that it has colloidal …
Geology Of The Killdeer Mountains, Dunn County, North Dakota, Terence T. Quirke
Geology Of The Killdeer Mountains, Dunn County, North Dakota, Terence T. Quirke
Theses and Dissertations
No abstract provided.