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  • Articles  (14,897)
  • 1965-1969  (14,897)
  • 1965  (14,897)
  • Geosciences  (9,229)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (5,802)
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  • Articles  (14,897)
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  • 1965-1969  (14,897)
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  • 1
    Electronic Resource
    Electronic Resource
    FALLING DROP USED FOR GRAIN-SIZE ANALYSIS OF FINE-GRAINED MATERIALS (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: To facilitate simultaneous performances of numerous grain-size analyses covering the silt and clay fractions, a method has been worked out and the necessary equipment constructed for utilizing a falling drop for determining densities of particle suspensions. A drop is taken out by means of a micro-syringe at the desired depth in a sedimentation vessel, and ejected into a column of an organic liquid with a slightly lower density. The drop then falls with a constant speed and the time measured with a stopwatch over a certain distance is a measure of the density of the drop, and hence also of the particle concentration in the sedimentation vessel where the drop is taken. In this way it is easily possible to work through twenty samples in a normal working day, including removal of organic matter, dispersion, washing (to remove effects of soluble salts) and evaluating the final results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01566.x
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  • 2
    Electronic Resource
    Electronic Resource
    THE DEVELOPMENT OF OVERGROWTHS FROM ECHINODERM FRAGMENTS (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: An overgrowth from an echinoderm fragment is a single crystal of calcite in lattice continuity with the calcite crystal of the host. The development history of echinoderm overgrowths during cementation has been elucidated by the identification of iron-bearing and iron-free calcites within the overgrowths by employing staining techniques.The iron-bearing parts of the overgrowths described do not stain uniformly for iron. Instead they exhibit a succession of light and dark stained sub-zones, which represent the shapes of the overgrowths during their development.The pattern of zoning around basal sections of crinoid ossicles is comparatively simple. The innermost zones follow the outlines of the ossicles. Later zones adopt first quasi-hexagonal outlines with curved sides, and then true hexagonal zones of prismatic habit. Such basal sections of ossicles give well-centred conoscope images and are therefore, oriented perpendicular to the c-axis directions of their calcites.Vertical sections through overgrowths show a more complex zoning: above and below the articulating surfaces of ossicles the zones are wide, and have a marked zig-zag outline, with the axes of the spires parallel to the vertical axes of the ossicles and parallel to the c-axes of the crystals. Along the sides of the ossicles the zones are narrow and straight. The multiple terminations in the c-axis direction reduce in number away from the surface of the ossicle and, if the original pore-spaces are sufficiently large, ultimately yield a single scalenohedron-type termination. The multiple terminations have their origins on the articulating surfaces of the ossicles. In life these surfaces were perforated by the entrances to the numerous minor canals which ramify the ossicles. The multiplicity of terminations resulted from more rapid crystal growth from the surface of the ossicle between canals (c-axis direction) than from the surfaces of the canals themselves (direction perpendicular to the c-axis).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb02113.x
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  • 3
    Electronic Resource
    Electronic Resource
    TEXTURAL STUDIES OF GRADED BEDDING. OBSERVATION AND THEORY (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Published data and new observations from the Tertiary and Ordovician show that non-multiple, continuously graded beds from turbidite sequences have size decline curves that are either convex, concave, or straight.Utilizing a physical model and knowledge of fluid mechanics of turbulent transport, a formula relating both median and maximum grain-size to height above the base of the graded bed was obtained. This analysis suggests that the shape of the size decline curve in a continuously graded bed depends on the initial size distribution of particles carried by the turbulent current.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01563.x
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  • 4
    Electronic Resource
    Electronic Resource
    RECHERCHES SUR LE COMPORTEMENT HYDRAULIQUE DES DEBRIS ORGANOGENES (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Presentation of investigations on the hydraulic content of fragments of lamelli-branches dredged on the continental shelf (diameters between 12 and 0.51 mm).These lamellar fragments have fall velocities greatly different from those of quartz grains with which they are able to coexist in a sediment. The data of G. Rittinger (in TRASK, 1939) and R. W. Budryk (in TRASK, 1939) are not applicable to these fragments.The author points out the interest of a basic documentation for the dynamic study of sedimentation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01565.x
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  • 5
    Electronic Resource
    Electronic Resource
    HIGH pH AND PRIMARY DOLOMITE (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb02117.x
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  • 6
    Electronic Resource
    Electronic Resource
    HIGH pH AND PRIMARY DOLOMITE, COMMENTS ON THE REPLY BY G. V. CHILINGAR AND H. J. BISSELL (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb02119.x
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  • 7
    Electronic Resource
    Electronic Resource
    FLUVIATILE SEDIMENTARY STRUCTURES IN THE WOOD BAY SERIES (DEVONIAN) OF SPITSBERGEN (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 5 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: A noteworthy feature of parts of the Series is the development of cyclothems which consist of: scoured surface, coarse member, fine member, scoured surface. General environments, suggested by this and fossil evidence, are: erosion in river bed, deposition in river bed, deposition in overbank area, erosion in river bed. Structures within the sets of strata include: no lamination, flat bedding, small and large-scale cross-lamination, parting lineation. The significance of each is discussed. Sole structures, occurring on the scoured surfaces, are described. They include: groove casts, crescents, flute casts, a variety of long welts, and unoriented structures. These are mainly scour structures but some may be subaerial marks, and there is also evidence for post-depositional flowage. The value of these structures as indicators of palaeocurrent and ultimately palaeoslope directions is discussed with examples. Measurements of sole structures, parting lineations and ripples have been more profitable than large-scale cross-stratification or contorted lamination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01557.x
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  • 8
    Electronic Resource
    Electronic Resource
    ON THE ATECTONIC ORIGIN OF FOLDS IN LIMESTONE (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 4 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: In principle, sedimentary folding in Early Ordovician limestones in Sweden corres- ponds to the arching of a marble plaque on the wall of the “H6tel de Ville” of Cham- bery. This folding is due to dilatation within an unyielding frame by the swelling of a certain layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01554.x
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  • 9
    Electronic Resource
    Electronic Resource
    IN DEFENCE OF POINT COUNTING ANALYSIS, A DISCUSSION (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 4 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01291.x
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  • 10
    Electronic Resource
    Electronic Resource
    Book Reviews (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 4 (1965), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Books review in this article: Stratigraphy and Sedimentation, 2 ed. W. C. Krumbein and L. L. SlossLimestone building Algae and Algal Limestones. J. HARLAN JOHNSON.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1965.tb01294.x
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