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  • Other Sources  (5)
  • Rosenstiel School of Marine and Atmospheric Science  (3)
  • AGU (American Geophysical Union)
  • Cambridge University Press
  • Oxford Univ. Press
  • 1965-1969  (5)
  • 1
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    An evaluation of the U234/U238 method as a tool for dating pelagic sediments (1965)
    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research, 70 (14). pp. 3457-3474.
    Details
    Publication Date: 2017-12-21
    Description: The possibility of using the 15% excess U234 activity in oceanic uranium for dating pelagic sediments in the age range 100,000 years to more than 1 m.y. has been explored. Results from a series of analyses of bulk samples, mechanical separates, and acid leach fractions indicate that separation of authigenic uranium from detrital uranium by either mechanical or chemical means is impractical. Measurements on totally dissolved samples reveal that the sediments do not form a closed system; post-depositional migration of U234 in the sedimentary column takes place. Based on the experimental data obtained from three red-clay cores with sedimentation rates ranging from 2 to 6 mm/1000 yr, a model depicting diffusion of the U234 generated within the sediments is proposed. The diffusion equation includes three parameters: sedimentation rate, diffusion coefficient for U234, and fraction of the internally produced U234 subject to mobility. If the amount of U234 lost from these cores is typical, a sizeable part of the U234 excess in the sea must be from this source.
    Type: Article , PeerReviewed
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  • 2
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    Octopus maya, a new species from the bay of campeche, Mexico (1966)
    Rosenstiel School of Marine and Atmospheric Science
    In:  Bulletin of Marine Science, 16 (3). pp. 615-625.
    Details
    Publication Date: 2020-07-14
    Description: A new species of occllated octopus, Octopus maya, is described from nine specimens collected in the Bay of Campeche. The species, known only from the bay, was taken during a survey of the octopus fisheries and is the second described species of ocellated octopus from the Atlantic Ocean. It is characterized by a large double-ringed ocellus, large eggs attaining a length of 17 mm, and, in the male, a minute ligula. It is compared with other ocellated species from the Pacific and Indian oceans. A key to the eight species of shallow water octopus of the tropical Western Atlantic Ocean is included.
    Type: Article , PeerReviewed
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  • 3
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    A Note on Egg Deposition by Doryteuthis Plei (Blainville, 1823) and Its Comparison with Other North American Loliginid Squids (1965)
    Rosenstiel School of Marine and Atmospheric Science
    In:  Bulletin of Marine Science, 15 (3). pp. 589-598.
    Details
    Publication Date: 2020-07-15
    Description: Observations on egg laying in D. plei are reported. The similarities and differences of the egg deposition process, the egg mass structure and the mode of attachment in other North American loliginid squids are compared with that of D. plei.
    Type: Article , PeerReviewed
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  • 4
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    Octopods from the R/V Pillsbury southern Caribbean Cruise, 1966, with a description of a new species, octopus zonatus (1968)
    Rosenstiel School of Marine and Atmospheric Science
    In:  Bulletin of Marine Science, 18 (3). pp. 645-659.
    Details
    Publication Date: 2020-08-07
    Description: A new spccics of barred octopus is described from material collected aboard the R/V Pillsbury from off the Caribbean coast of Colombia. It is compared with its nearest relative, O. chierchiae from the tropical eastern Pacific. Descriptions are accompanied by detailed illustrations. Also recorded are: O. defilippi Yerany, O. jouhini Robson, O. vulgaris Cuvier, and Benthoctopus januarii Hoyle. A new key to the known shallow-water octopods of the western Atlantic is included.
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  • 5
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    The motion of a spherical liquid drop at high Reynolds number (1968)
    Cambridge University Press
    In:  Journal of Fluid Mechanics, 32 (2). pp. 367-391.
    Details
    Publication Date: 2020-03-11
    Description: The steady motion of a liquid drop in another liquid of comparable density and viscosity is studied theoretically. Both inside and outside the drop, the Reynolds number is taken to be large enough for boundary-layer theory to hold, but small enough for surface tension to keep the drop nearly spherical. Surface-active impurities are assumed absent. We investigate the boundary layers associated with the inviscid first approximation to the flow, which is shown to be Hill's spherical vortex inside, and potential flow outside. The boundary layers are shown to perturb the velocity field only slightly at high Reynolds numbers, and to obey linear equations which are used to find first and second approximations to the drag coefficient and the rate of internal circulation.
    Type: Article , PeerReviewed
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