415 research outputs found

    Revision of Mississippian Stratigraphic Nomenclature in Kansas

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    The following changes to the Mississippian stratigraphic nomenclature of Kansas are suggested: 1) the Chattanooga Shale is almost entirely Devonian in age with, perhaps, only the uppermost part early Mississippian; 2) the term Misener Sandstone should be used for a Devonian sandstone at the base of the Chattanooga, not for Mississippian sandstones at the base of the Mississippian carbonates; 3) Hannibal Shale should be used in Kansas instead of Boice Shale; 4) Compton Limestone should be used throughout Kansas instead of the somewhat poorly defined term "Chouteau Limestone," which should be abandoned; 5) Sedalia Formation should be used throughout the state (instead of Sedalia Dolomite); 6) Northview Shale should be used as a formation-rank unit in Kansas, occurring above the Sedalia Formation; 7) the term "Fern Glen Limestone" should be abandoned; 8) St. Joe Limestone Member should be replaced with Pierson Limestone at a formation rank; 9) Reeds Spring Limestone should be elevated from member rank to formation rank; 10) Elsey Formation is recognized only in the extreme southeastern part of Kansas (southeastern Cherokee County) where it is laterally continuous in adjacent parts of Missouri and Oklahoma; 11) Burlington-Keokuk Limestone should be used in those areas where lithostratigraphic separation is not possible; 12) the base of the Meramecian Stage probably occurs within the Warsaw Formation, not at its base as previously placed; 13) the Ste. Genevieve Limestone is Chesterian; 14) Cowley Formation is recognized as a formation-level stratigraphic unit (equivalent to all or part of the St. Louis-upper Chattanooga interval) in the subsurface of south-central Kansas; 15) the St. Louis Limestone in the subsurface of southwestern Kansas is composed of the Hugoton Member below and the Stevens Member above; and 16) the Shore Airport Formation is recognized as the post-Ste. Genevieve Chesterian unit in the subsurface of southwestern Kansas

    Revision of Mississippian Stratigraphic Nomenclature in Kansas

    Get PDF
    The following changes to the Mississippian stratigraphic nomenclature of Kansas are suggested: 1) the Chattanooga Shale is almost entirely Devonian in age with, perhaps, only the uppermost part early Mississippian; 2) the term Misener Sandstone should be used for a Devonian sandstone at the base of the Chattanooga, not for Mississippian sandstones at the base of the Mississippian carbonates; 3) Hannibal Shale should be used in Kansas instead of Boice Shale; 4) Compton Limestone should be used throughout Kansas instead of the somewhat poorly defined term "Chouteau Limestone," which should be abandoned; 5) Sedalia Formation should be used throughout the state (instead of Sedalia Dolomite); 6) Northview Shale should be used as a formation-rank unit in Kansas, occurring above the Sedalia Formation; 7) the term "Fern Glen Limestone" should be abandoned; 8) St. Joe Limestone Member should be replaced with Pierson Limestone at a formation rank; 9) Reeds Spring Limestone should be elevated from member rank to formation rank; 10) Elsey Formation is recognized only in the extreme southeastern part of Kansas (southeastern Cherokee County) where it is laterally continuous in adjacent parts of Missouri and Oklahoma; 11) Burlington-Keokuk Limestone should be used in those areas where lithostratigraphic separation is not possible; 12) the base of the Meramecian Stage probably occurs within the Warsaw Formation, not at its base as previously placed; 13) the Ste. Genevieve Limestone is Chesterian; 14) Cowley Formation is recognized as a formation-level stratigraphic unit (equivalent to all or part of the St. Louis-upper Chattanooga interval) in the subsurface of south-central Kansas; 15) the St. Louis Limestone in the subsurface of southwestern Kansas is composed of the Hugoton Member below and the Stevens Member above; and 16) the Shore Airport Formation is recognized as the post-Ste. Genevieve Chesterian unit in the subsurface of southwestern Kansas

    Combustion of hydrogen injected into a supersonic airstream (a guide to the HISS computer program)

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    A computer program based on a finite-difference, implicit numerical integration scheme is described for the prediction of hydrogen injected into a supersonic airstream at an angle ranging from normal to parallel to the airstream main flow direction. Results of calculations for flow and thermal property distributions were compared with 'cold flow data' taken by NASA/Langley and show excellent correlation. Typical results for equilibrium combustion are presented and exhibit qualitatively plausible behavior. Computer time required for a given case is approximately one minute on a CDC 7600. A discussion of the assumption of parabolic flow in the injection region is given which demonstrates that improvement in calculation in this region could be obtained by a partially-parabolic procedure which has been developed. It is concluded that the technique described provides an efficient and reliable means for analyzing hydrogen injection into supersonic airstreams and the subsequent combustion

    Combustion of hydrogen-air jets in local chemical equilibrium: A guide to the CHARNAL computer program

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    A guide to a computer program, written in FORTRAN 4, for predicting the flow properties of turbulent mixing with combustion of a circular jet of hydrogen into a co-flowing stream of air is presented. The program, which is based upon the Imperial College group's PASSA series, solves differential equations for diffusion and dissipation of turbulent kinetic energy and also of the R.M.S. fluctuation of hydrogen concentration. The effective turbulent viscosity for use in the shear stress equation is computed. Chemical equilibrium is assumed throughout the flow

    Light-intensity modulator withstands high heat fluxes

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    Mechanism modulates and controls the intensity of luminous radiation in light beams associated with high-intensity heat flux. This modulator incorporates two fluid-cooled, externally grooved, contracting metal cylinders which when rotated about their longitudinal axes present a circular aperture of varying size depending on the degree of rotation

    A Reference Section for the Pennsylvanian Lorton Coal Bed (Root Shale: Wabaunsee Group) in Kansas

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    The Lorton coal bed (Wabaunsee Group: Virgilian) of Late Pennsylvanian age is formally recognized as a bed-level stratigraphic unit in the Root Shale in Kansas. A stratigraphic reference section in Lyon County, Kansas, is given for the Lorton coal bed

    Dependent and independent data in paleontology: Tools for the sedimentary modeler

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    The relationship of paleontology to sedimentologic and stratigraphic modeling can be viewed as dependent, independent, or some combination of the two. Independent paleontologic data are taxonomy based and include standard paleontologic techniques, such as biostratigraphy. Tremendous advances in temporal acuity have resulted from our ability to analyze standard biostratigraphic data bases through the different methodologies of quantitative biostratigraphy. Dependent paleontologic data result from biotic responses to externally mediated physical parameters (e.g., sea level, climate, sediment accumulation rate). Thus, for example, trace-fossil distribution can be used with care as a tool to help discern transgressive-regressive events. In addition, biotic event horizons (epiboles) can be used as indicators of temporal equivalency across complex depositional facies mosaics and thus serve as important markers for regional correlation

    A Reference Section for the Pennsylvanian Lorton Coal Bed (Root Shale: Wabaunsee Group) in Kansas

    Get PDF
    The Lorton coal bed (Wabaunsee Group: Virgilian) of Late Pennsylvanian age is formally recognized as a bed-level stratigraphic unit in the Root Shale in Kansas. A stratigraphic reference section in Lyon County, Kansas, is given for the Lorton coal bed

    Dependent and independent data in paleontology: Tools for the sedimentary modeler

    Get PDF
    The relationship of paleontology to sedimentologic and stratigraphic modeling can be viewed as dependent, independent, or some combination of the two. Independent paleontologic data are taxonomy based and include standard paleontologic techniques, such as biostratigraphy. Tremendous advances in temporal acuity have resulted from our ability to analyze standard biostratigraphic data bases through the different methodologies of quantitative biostratigraphy. Dependent paleontologic data result from biotic responses to externally mediated physical parameters (e.g., sea level, climate, sediment accumulation rate). Thus, for example, trace-fossil distribution can be used with care as a tool to help discern transgressive-regressive events. In addition, biotic event horizons (epiboles) can be used as indicators of temporal equivalency across complex depositional facies mosaics and thus serve as important markers for regional correlation

    User Empowerment during a Coercive Organizational Transformation Enabled by Information Systems Change

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    Examines the effects of a small empowerment during the information system conversion phase of a directively managed transformation. Motivational benefits of employee empowerment in facilitating organizational change and promoting organization effectiveness; Use of a participative, collaborative or consultative change-management strategy; Important objective of information system development; Details on the study and its findings
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