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Articles 961 - 985 of 985
Full-Text Articles in Entire DC Network
Conodonts Of The Bakken Formation (Devonian And Mississippian), Williston Basin, North Dakota, Michael D. Hayes
Conodonts Of The Bakken Formation (Devonian And Mississippian), Williston Basin, North Dakota, Michael D. Hayes
Theses and Dissertations
The Bakken Formation is a thin (maximum 145 ft., 44 m), predominantly elastic unit in the subsurface of the Williston Basin in the United States and Canada. The formation consists of two, mostly non-calcareous, grayish-black to brownish-black shales separated by light to dark gray, calcareous and dolomitic siltstone and fine-grained sandstone. The carbonaceous, black shales of the Bakken produce a distinctive geophysical marker and are a major source rock for hydrocarbons in the Williston Basin.
Conodonts were selectively sampled from cores of the Bakken in North Dakota in an effort to determine the age and thermal maturity of the formation. …
Depositional Environments And History Of The Winnipeg Group (Ordovician), Williston Basin, North Dakota, Stephen C. Thompson
Depositional Environments And History Of The Winnipeg Group (Ordovician), Williston Basin, North Dakota, Stephen C. Thompson
Theses and Dissertations
The Winnipeg Group (Ordovician) in the Williston Basin, North Dakota, contains three formations. They are, in ascending order, the Black Island Formation, herein informally divided into lower and upper members, the Icebox Formation, and the Roughlock Formation. Strata of the Winnipeg Group (maximum thickness 400 ft., 122 m) represent the initial deposits of a Middle Ordovician craton-wide transgression. Throughout most of North Dakota, the Winnipeg is unconformably underlain by the Deadwood Formation (Upper Cambrian-Lower Ordovician) and conformably overlain by the Red River Formation (Upper Ordovician).
The strata of the lower member of the Black Island Formation consist of a red-bed …
Sedimentology Of The Bullion Creek And Sentinel Butte Formations (Paleocene) In A Part Of Southern Mckenzie County, North Dakota, Brian P. Wallick
Sedimentology Of The Bullion Creek And Sentinel Butte Formations (Paleocene) In A Part Of Southern Mckenzie County, North Dakota, Brian P. Wallick
Theses and Dissertations
The environment of deposition of the Bullion Creek and Sentinel Butte Formations (Paleocene) in western North Dakota has been variously ascribed to lacustrine, meandering fluvial, and deltaic settings. The purpose of this study was to interpret the depositional environments, depositional history, and provenance of the strata in T. 145 and 146 N., R. 102 W., McKenzie County, North Dakota.
A total of 24 stratigraphic sections were measured and described. In addition, paleocurrent data were gathered from primary sedimentary structures, positions of paleochannel outcrops were noted, and samples were collected. Laboratory work consisted of thin-section petrography, scanning electron microscopy, and X-ray …
Depositional Cycles And Coral Distribution, Mission Canyon And Charles Formations, Madison Group (Mississippian), Williston Basin, North Dakota, Douglas L. Waters
Depositional Cycles And Coral Distribution, Mission Canyon And Charles Formations, Madison Group (Mississippian), Williston Basin, North Dakota, Douglas L. Waters
Theses and Dissertations
The distribution of corals, other fossils, and rock types of the Madison Group in the Williston Basin were studied in 29 cores (involving over 6,200 feet of core) from the Bottineau, Tilston, Frobisher-Alida, and Ratcliffe intervals in the western half of North Dakota. Occurrence of rock types, corals, and other fossils (brachiopods, bryozoans, red algae, and gastropods) of the Mission Canyon and lower Charles Formations were plotted in three cross-sections against the informal marker-defined intervals (Tilston, Frobisher-Alida, and Ratcliffe), as identified from well logs. Distribution and abundance of corals in nine of the more extensive cores were related to interpreted …
Bivalve Associations Of The Cannonball Formation (Paleocene, Danian) Of North Dakota, Rosanne M. Lindholm
Bivalve Associations Of The Cannonball Formation (Paleocene, Danian) Of North Dakota, Rosanne M. Lindholm
Theses and Dissertations
The Cannonball Formation (Paleocene, Danian) is best exposed in southwest-central North Dakota. Here, two major lithotypes, mudstone and sandstone, occur. In this area, the Cannonball can be informally subdivided into four lithologic units: lower (primarily thinly-bedded sandstone and mudstone), lower-middle (sandstone), upper-middle (mudstone), and upper (sandstone). The Cannonball is also exposed in southwestern North Dakota where it occurs as two mudstone tongues (upper and lower).
During July and August, 1982, thirteen Cannonball outcrops were studied. Bivalves, along with other macrofossils, were collected quantitatively in an attempt to determine fossil species dominance. Rock samples were also collected and analyzed for textural …
Paleohydraulics Of Pleistocene Drainage Development Of The Souris, Des Lacs, And Moose Mountain Spillways, Saskatchewan And North Dakota, Mark L. Lord
Theses and Dissertations
Recent recognition of the rapid draining of numerous glacial lakes, including some in the Northern Plains, has revealed 'a need for further research concerning this process. Geomorphic interpretation of the Souris, Des Lacs, and Moose Mountain Valleys, and the gravel deposits in them, has resulted in the recognition of five phases in the development of the drainageways. Textural analyses and paleohydraulic methods were applied to the sediments associated with each phase to distinguish and characterize the discharges. Four of the five phases of development involved short-lived, high velocity (>4 m/s) discharges resulting from the rapid draining of glacial lakes; …
The Ashern Formation (Middle Devonian) In The Williston Basin, North Dakota, Frederick K. Lobdell
The Ashern Formation (Middle Devonian) In The Williston Basin, North Dakota, Frederick K. Lobdell
Theses and Dissertations
The Ashern Formation (Middle Devonian) is the basal unit of the Kaskaskia Sequence in North Dakota. It unconformably overlies the Interlake Formation (Silurian) and underlies, probably paraconformably, the Winnipegosis Formation (Middle Devonian). The Ashern is present in the northwestern one-half of the state, and attains a maximum thickness of 180 feet (55 meters) The Ashern Formation may be subdivided into a lower red member and an upper gray member. The latter directly overlies the Interlake Formation where the red member is absent. Both members are argillaceous, microcrystalline dolostones containing minor quartz silt. Anhydrite, present in both members, is much more …
Groundwater-Lake Interactions, Wood Lake, Benson County, North Dakota, Lori J. Ferguson
Groundwater-Lake Interactions, Wood Lake, Benson County, North Dakota, Lori J. Ferguson
Theses and Dissertations
Wood Lake is a kettle lake within the McHenry end moraine (late Wisconsinan) in eastern Benson County, North Dakota. It is part of the Devils Lake interior basin, near the drainage divide between the Devils Lake basin and the Big Coulee - Sheyenne River drainage. The moraine deposits, part of the Coleharbor Group, are composed of complexly interfingering lenses of gravel, sand, silt, and clay within the till.
Water levels in piezometers around Wood Lake indicate groundwater flows from the southwest into the west side of the lake and out of the lake along the east shore, toward the northeast. …
Heavy Minerals Of The Cretaceous Hell Creek And Paleocene Ludlow Formations Of Slope And Bowman Counties, North Dakota, Robert A. Farris
Heavy Minerals Of The Cretaceous Hell Creek And Paleocene Ludlow Formations Of Slope And Bowman Counties, North Dakota, Robert A. Farris
Theses and Dissertations
The Cretaceous Hell Creek and Paleocene Ludlow Formations of southwestern North Dakota are nonmarine sediments of alluvial origin. The heavy minerals of these formations were specifically studied to determine the source rock types and their provenance, and generally assess the diagenetic processes which affected the heavy minerals.
The heavy minerals include zircon, rutile, tourmaline, garnet, ilmenite, spinel, apatite, epidote, sphene, pyroxene, dolomite, biotite, andalusite, pyrite, monazite, and barite. Most of the heavy minerals have angular shapes, indicating one cycle of erosion and deposition.
The heavy mineral percentages of the concretions and surrounding sediments were compared within and between the Hell …
Stratigraphy And Depositional Environments Of The Fox Hills Formation (Upper Cretaceous), Bowman County, North Dakota, Daniel J. Daly
Stratigraphy And Depositional Environments Of The Fox Hills Formation (Upper Cretaceous), Bowman County, North Dakota, Daniel J. Daly
Theses and Dissertations
The sedimentary structures, trace fossils, and lithology of the Upper Cretaceous Fox Hills Formation in Bowman County, North Dakota, were studied during the summer of 1979 and the spring of 1983. Twenty-three stratigraphic sections were measured and described and lithologic samples were collected for textural and mineralogical analysis, also, the major outcrops of the formation in the Dakotas and Montana were visited.
The formation in the study area was previously defined as a 27-mthick sandstone unit, containing three members--ascending, Trail City, Timber Lake, and Colgate--that was conformable with the underlying Pierre and overlying Hell Creek Formations. The Fox Hills, as …
Stratigraphy And Depositional Environments Of The Three Forks Formation (Upper Devonian), Williston Basin, North Dakota, Gayle M. Dumonceaux
Stratigraphy And Depositional Environments Of The Three Forks Formation (Upper Devonian), Williston Basin, North Dakota, Gayle M. Dumonceaux
Theses and Dissertations
The Three Forks Formation (Upper Devonian) is present in the subsurface in the western two-thirds of North Dakota and is generally conformable with the underlying Birdbear Formation and the overlying Bakken Formation.
The Three Forks attains a maximum thickness of 265 feet (81 meters) in the central basin, east and south of the Nesson Anticline, and thins to an erosional edge in eastern North Dakota. The Three Forks is composed of micrite and dolomicrite, which may be fcssiliferous and argillaceous. From the study of core samples and detailed petrographic analysis of thin sections, five lithofacies were recognized and their extent …
The Geochemical Evolution Of Saline Groundwater Within A Fresh Water Aquifer South Of Oakes, North Dakota, David L. Williams
The Geochemical Evolution Of Saline Groundwater Within A Fresh Water Aquifer South Of Oakes, North Dakota, David L. Williams
Theses and Dissertations
An area of saline/brackish groundwater south of Oakes, North Dakota has been reported by the North Dakota State Water Commission. The concentrated water (over 12,000 mg/L of total dissolved solids) is in direct hydraulic connection with relatively fresh water and shows an abrupt change in concentration and water chemistry between these two end members. The saline/brackish water is beneath a shallow trough or depression which has an approximate area of 6 square miles (15.5 square kilometres). The trough is within the northern part of the Glacial Lake Dakota plain. Sediments in the lake plain, which is an unconfined aquifer, are …
Software And Development Process Quality Metrics, Robert Yacobellis
Software And Development Process Quality Metrics, Robert Yacobellis
Robert H Yacobellis
No abstract provided.
Possibilities For Finite Grand Unification With N = 2 Supersymmetry, Asim Gangopadhyaya
Possibilities For Finite Grand Unification With N = 2 Supersymmetry, Asim Gangopadhyaya
Asim Gangopadhyaya
Method And Apparatus For Division Employing Associative Memory Us:4466077, Robert Iannucci, James Kleinsteiber
Method And Apparatus For Division Employing Associative Memory Us:4466077, Robert Iannucci, James Kleinsteiber
Robert A Iannucci
No abstract provided.
Topoi And Categories Of Fuzzy Sets, Lawrence Stout
Topoi And Categories Of Fuzzy Sets, Lawrence Stout
Lawrence N. Stout
Let H be a completely distributive lattice and hence a Heyting algebra. Goguen's category of fuzzy sets Set(H) Eytan's logos Fuz(H) and the topos of sheaves on H, Sh(H), are interconnected by pairs of adjoint functors between them. Each of the categories has a predicate calculus. These predicate calculi are related through the functors between the categories. Change of base lattice gives rise to several functors which preserve or reflect specific kinds of statements in the predicate calculi. This paper gives details of the categories, the predicate calculi attached to them, the functors between the categories, and the preservation properties …
Predicting The Proton Mass From Pi-Pi-Scattering Data, Jf Donoghue, E Golowich, Br Holstein
Predicting The Proton Mass From Pi-Pi-Scattering Data, Jf Donoghue, E Golowich, Br Holstein
Barry R Holstein
We relate experimental information on ππ scattering to tree-level effective chiral Lagrangians. The result is of a form similar to that used in Skyrme-type models of the proton, where the nucleons are described as topologically stable solitons of the chiral fields. In such models, one can express the proton mass in terms of measured scattering data, with the result Mp=880±300 MeV. We interpret this as a consistency test for the Skyrme models.
Chemistry Of Singlet Oxygen. 47. 9,10-Dicyanoanthracene-Sensitized Photooxygenation Of Alkyl-Substituted Olefins, Thomas Goyne, Yasuhiko Araki, Diane Dobrowolski, Douglas Hanson, Zhi Jiang, Kenneth Lee, Christopher Foote
Chemistry Of Singlet Oxygen. 47. 9,10-Dicyanoanthracene-Sensitized Photooxygenation Of Alkyl-Substituted Olefins, Thomas Goyne, Yasuhiko Araki, Diane Dobrowolski, Douglas Hanson, Zhi Jiang, Kenneth Lee, Christopher Foote
Thomas Goyne
No abstract provided.
Nonergodicity In Path Integral Molecular Dynamics, Randall W. Hall, B. J. Berne
Nonergodicity In Path Integral Molecular Dynamics, Randall W. Hall, B. J. Berne
Randall W. Hall
A Path Integral Monte Carlo Study Of Liquid Neon And The Quantum Effective Pair Potential, Devarajan Thirumalai, Randall W. Hall, Bruce J. Berne
A Path Integral Monte Carlo Study Of Liquid Neon And The Quantum Effective Pair Potential, Devarajan Thirumalai, Randall W. Hall, Bruce J. Berne
Randall W. Hall
Asymptotic Theory Of Perturbed General Disconjugate Equations Ii, William F. Trench
Asymptotic Theory Of Perturbed General Disconjugate Equations Ii, William F. Trench
William F. Trench
No abstract provided.
Asymptotic Behavior Of Solutions Of An N-Th Order Differential Equation, William F. Trench
Asymptotic Behavior Of Solutions Of An N-Th Order Differential Equation, William F. Trench
William F. Trench
No abstract provided.
Maximal Functions Measuring Smoothness, Ronald A. Devore, Robert C. Sharpley
Maximal Functions Measuring Smoothness, Ronald A. Devore, Robert C. Sharpley
Robert Sharpley
Maximal functions which measure the smoothness of a function are introduced and studied from the point of view of their relationship to classical smoothness and their use in proving embedding theorems, extension theorems and various results on differentiation. New spaces of functions which generalize Sobolev spaces are introduced.
Theology In A Digital World - Speech, October 2, 1984, David Morgan Lochhead
Theology In A Digital World - Speech, October 2, 1984, David Morgan Lochhead
Dr. David Morgan Lochhead
David Morgan Lochhead promoted to Full Professor of the Vancouver, October 2, 1984. His address was entitled: Theology in a Digital World. Epiphany Chapel, VST
Asymptotics Of Differential Systems With Deviating Arguments, William F. Trench
Asymptotics Of Differential Systems With Deviating Arguments, William F. Trench
William F. Trench
No abstract provided.