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Showing 1 to 20 of 109 for “"Geology--North Dakota"”.
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A geomagnetic survey of parts of Pierce, Benson, Sheridan and Wells counties
… These highs and lows form at least one northeasterly trend which may be an irregular basement ridge. A promising place to look for oil accumulation might then be on there lower intensity magnetic highs and lows, which may reflect both basement and the overlying sedimentary structures. …
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The Spearfish Formation in the Williston Basin of western North Dakota
… been traced into the Williston Basin of western North Dakota. In the basin, the formation can be divided into three members. In ascending order these are: (1) a lower gray shale and red siltstone unit herein named the Belfield Member, (2) a middle salt unit, the Pine Salt Member, and (3) an upper …
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The micropaleontology and stratigraphy of the subsurface "Heath" formation (Mississippian-Pennsylvanian) of western North Dakota
… Formations in the subsurface of southwestern North Dakota, is a source of petroleum in the Scoria-Fryburg, Rocky Ridge and Dickinson oil fields. Cores, cut from the interval under study, of twenty wells in this area, were the source of fossil and lithologic samples studied. Changes in …
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The upper Red River Formation (Ordovician) in western North Dakota
<p>The upper Red River Formation in Western North Dakota consists of cyclic sedimentary rocks having four main porosity zones which contain most of the oil and gas found in the formation. It was divided into three distinct units that were traced throughout western North Dakota on mechanical logs. …
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Applied geology in the Beulah-Hazen area, Mercer County, west-central North Dakota
… around the small towns of Beulah and Hazen, North Dakota, will cause rapid growth and necessitate the develop ment of new subdivisions and expansion of present sewage disposal facili ties. A detailed geologic study of a 9 0-square mile area surrounding the two towns was undertaken to provide …
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Annotated bibliography of the geology of North Dakota, 1806-1959
<p>References to the literature on North Dakota geology published between 1805 and 1960 are listed in this annotated bibliography. Published bibliographies on North American geology, bibliographies on geological subjects important to North Dakota, unpublished lists of references, and references …
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Mollusks from Wisconsinan (Pleistocene) ice-contact sediments of the Missouri Coteau in central North Dakota
… 50 by 300 miles in extent) in central North Dakota.</p> <p>Fossil mollusks, contained in sediments deposited in contact with the stagnant ice at 40 sites, are represented by 23 species including polecypods of the families Unionidae and Sphaeriidae and gastropods of the families …
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The petroleum geology of the Midale subinterval in north central North Dakota
… an important petroleum producing unit in North Dakota, is a dolomitized limestone which is approximately 40 feet thick. A detailed study of 17 oil fields in north central North Dakota was conducted to determine the petroleum geology of the Midale subinterval. The study was done with the …
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Surface geology for land use planning, Minot, North Dakota area
… along both sides of the Souris River in north-central North Dakota. The area can be divided into the flat Souris River floodplain, the steeply sloping sides of the Souris and Des Lacs meltwater channels and larger tributaries, and the gently undulating uplands dissected by small streams. …
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The structural and stratigraphic relationships in the Paleozoic rocks of eastern North Dakota
… commonly defined Paleozoic rock units in eastern North Dakota has been determined by a study of mechanical well logs. Isopachous wops of these units reveal several positive areas which persisted and influenced sedimentation and unit thickness throughout most of the Paleozoic Era. Precambrian …
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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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Concretions and nodules in the Hell Creek Formation, southwestern North Dakota
… Formation (Upper Cretaceous) in southwestern North Dakota consists of lagoonal and floodplain deposits and contains abundant concretions and nodules. Representative specimens of the concretions and nodules and their corresponding enclosing sediments were analyzed by thin section and by …
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Recent fluvial geology in western North Dakota
… Mr. Clayton was chairman. </p><p> In western North Dakota many drainage channels that are incised into valley fill are characterized by steep, unvegetated sides. Many such channels contain actively eroding scarps. The origin of these scarps is most frequently related to increased water …
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Glacial geology and stratigraphy of southeastern Pierce and southwestern Benson counties, North Dakota
… Pierce and southwestern Benson Counties, North Dakota (T. 152 N. through T. 154 N., R. 70 W. through R. 73 W.).</p> <p>,</p> <p>Field mapping and subsequent analyses were attempted to differentiate the drifts of the Leeds and Souris lobes, to determine the sequence and duration of events …
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The Rhame bed (Slope Formation, Paleocene), a silcrete and deep weathering profile, in southwestern North Dakota
… Rhame Bed was mapped in western Slope County and north central Bowman County. The bed outcrops on the tops of buttes, at the present groJnd surface in large level areas, or in steep slopes. Although the bed is laterally discontinuous, it is a clearly mappable unit.</p> <p>The Rhame Bed typically …
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Glacial Geology of south-central Kidder County, North Dakota
… by ice sheets which invaded the areas from the northeast and east. Bedrock of Cretaceous age underlies the drift mantle. The drift on the surface in Kidder County represents the Cary and Mankato substages of the Wisconsin Stage of Pleistocene series.</p> <p>Three types of moraines, ground, …
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Jurassic stratigraphy of the southern two-thirds of North Dakota
<p>Jurassic rocks in the southern two-thirds of North Dakota consist mainly of limestone, shale, anhydrite, and salt of the Piper Formation; shaly limestone, calcareous and non-calcareous shales of the Rierden Formation; shale and sandstone of the Swift Formation; and, at the top, non-marine shale …
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Glacial geology of western Sheridan County, North Dakota
<p>Western Sheridan County, in central North Dakota, lies within three physiographic districts; The Missouri Coteau district, the Sheyenne River district, and the Martin subdistrict. The Missouri Coteau district is characterized by thick drift, knob and kettle topography, and non-integrated …
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