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Showing 1 to 20 of 645 for “"north dakota"”.
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Drumlins in North Dakota
… glacially formed longitudinal ridges found in northeastern North Dakota can be referred to as either drumlins or drumlinized ground moraine depending on their size, shape, composition, and interpreted origin. </p> <p>Most of the drumlins observed in North Dakota are cored with glacial outwash …
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Multiple Till in North Dakota
… information on the pleistocene geology of North Dakota. Field and laboratory studies have been completed on a glacial till exposure in the Inkster area. From the results obtained, it is the belief of the author that multiple till does occur in North Dakota.</p>
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The basement of North Dakota
… of this report is to study the basement rocks of North Dakota. The basement rocks of North Dakota may be divided into two categories. The eastern division comprises deeply weathered material and extends from the Red River westward for approximately thirty miles. The western division essentially …
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Activated Carbon from North Dakota Lignite
<p>Activated carbon was produced by reacting lignite char with steam in a fluidized-bed reactor which was designed and constructed for this study. Effects of three variables temperature, residence time and particle size, at four levels were studied statistically using a Latin square design. When …
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Salt Drilling Problems in North Dakota
… problem. The major salt deposits of western North Dakota may be placed in three evaporite types: normal marine, penesaline, and saline. The four major formations encountered in oil well drilling are the Prairie Evaporite of Devonian age, Mississippian Charles, Permian Opeche, and the …
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Tills of Kidder County, North Dakota
<p>Kidder County, located in south-central North Dakota, is completely covered by drift of the Wisconsin stage. Irregular preglacial topography, large amounts or confusing “stagnation” moraine, and a blanket of outwash over much of the county make differentiation of tills of different glacial …
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Deflation basin stratigraphy: southwestern North Dakota
… from a number of shallow basins in southwestern North Dakota and the comparison of this sequence with other work either in the area or in similar geographic environments. </p><p>Samples were obtained by augering, coring, and trenching selected basins. They were analyzed by means of: core …
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Glacial Stratigraphy of northeastern North Dakota
… of glacial sediment have been recognized in northeastern North Dakota. Three formations, the Falconer Formation (Harris and others, 1974}, the Dahlen, and Gardar Formations (Salomon, 1975). Have been previously recognized. Four formations, the Hansboro, Vang, Tiber and Cando Formations are …
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Washboard moraines in northeastern North Dakota
… till ridges occurring in glaciated regions of North America. Washboard moraines have, in the past, been confused with similar transverse features such as ribbed moraines and De Geer moraines. No previous work had been done on washboard moraines in North Dakota prior to this study. Objectives of …
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Geology of McLean County, North Dakota
<p>McLean County, in west-central North Dakota on the east side of the Williston Basin, is covered by 8,500 to 13,000 feet of Paleozoic, Mesozoic, and Cenozoic rocks, which dip to the west at low angles. The Tertiary Tongue River and Sentinel Butte Formations are widely exposed in McLean County, …
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Glacial stratigraphy of southeastern North Dakota
… in the glacial sediment {till) of southeastern North Dakota. Five of these units are not formally named; eventually most of these units will be correlated with formations in surrounding regions. Two of these units, Gardar and Dahlen, are formations recognized in northeastern North Dakota {Hobbs, …
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Oil and Politics in North Dakota
In the past decade, North Dakota has experienced a substantial shift in economic and political activity due to oil. In addition to jobs and revenue, corporate interests have surged into the state with a dominating force. As players in a highly valued industry, oil companies have worked hard to …
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Ecology of Gray Partridge in North Dakota
… gray partridge (Perdix perdix) ecology in north-central North Dakota during 1985-87. The primary goals of this study were to identify habitats important to gray partridge survival and nesting, and to provide baseline data on partridge ecology in North Dakota. I captured and radio-tagged 100 …
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African Americans in North Dakota 1800-1940
… and have been involved in every stage of North Dakota's history from 1800 to 1940. However, historians generally have neglected the existence of black people in North Dakota's past. This study examined the participation by African Americans in North Dakota's social and economic history …
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