Now showing items 21-40 of 977

  • Geomagnetic variations in the Northwest Atlantic : implications for the electrical resistivity of the oceanic lithosphere 

    Poehls, Kenneth Allen (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-10)
    A geomagnetic variation study on mature oceanic lithosphere in the North Atlantic just south of Bermuda has revealed the presence of at least one layer of low electrical resistivity. The low resistivity layer of approximately ...
  • Gravity base stations in Indonesia and in the southwest Pacific 

    Jezek, Peter (Woods Hole Oceanographic Institution, 1976-06)
    During October, November, and December of 1975, seventy gravity base stations were established on the islands of eastern Indonesia (Timor, Wetar, Leti, Moa, Sermata, Babar, Ambon, Seram, Manawoko, Kasiui, Kao Besar, ...
  • The origin and tectonic history of the Southwest Philippine Sea 

    Louden, Keith E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-09)
    This thesis is a collection and analysis of seafloor magnetic anomalies, bathymetry, and the paleomagnetism of DSDP sediments and basalt in the West Philippine Basin, in an attempt to resolve questions about its origin ...
  • The hydrothermal alteration of oceanic basalts by seawater 

    Humphris, Susan E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-10)
    Considerable geological and geophysical evidence now exists to support the hypothesis that seawater circulates through freshly intruded basalt at the mid-ocean ridges. As a consequence of this process, reactions between ...
  • The origin of the ninetyeast ridge and the northward motion of India, based on DSDP paleolatitudes 

    Peirce, John Wentworth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-01)
    This thes is is a collection of papers on the paleomagnetics of samples from several Deep Sea Drilling Project (DSDP) sites in the Indian Ocean. These papers present the basic paleomagnetic data, discuss the statistical ...
  • Fine-grained sediment and industrial waste distribution and dispersal in New Bedford Harbor and Western Buzzards Bay, Massachusetts 

    Summerhayes, Colin P.; Ellis, Jeffrey P.; Stoffers, Peter; Briggs, Scott R.; Fitzgerald, Michael G. (Woods Hole Oceanographic Institution, 1977-04)
    New Bedford Harbor and its approaches form the estuary of the Acushnet River in southeastern Massachusetts. The estuary is weakly stratified and only partially mixed because river discharge is very small. It appears to ...
  • Descriptions of WHOI sediment cores : volume 5 

    Johnson, David A.; Driscoll, A. H. (Woods Hole Oceanographic Institution, 1977-04)
    This report supplements Volumes 1-4 of the core descriptions published previously in this sequence (Johnson and Driscoll, 1975). It contains visual descriptions and smear slide analyses for all cores received in the ...
  • The structural and sedimentological evolution of the Somali Basin : paleoceanographic interpretations 

    Burroughs, Richard H. (Woods Hole Oceanographic Institution, 1977-07)
    The paleooceanographic development of the Somali Basin in the Northwestern Indian Ocean is determined through considering the structural, evolution of the area; its influence on Neogene atmospheric and oceanic circulation ...
  • Fluxes, dynamics and chemistry of particulates in the ocean 

    Gardner, Wilford D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-10)
    Sediment traps designed to yield quantitative data of particulate fluxes have been deployed and successfully recovered on four moorings in the deep sea. The traps were designed after extensive calibration of different ...
  • Studies of deep-sea sedimentary microtopography in the North Atlantic Ocean 

    Flood, Roger D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1978-01)
    Many of the small-scale topographic features (dimensions of centimeters to kilometers) found on the Blake-Bahama Outer Ridge (western North Atiantic, water depth greater than 4000 m) and in the Rockall Trough (northeastern ...
  • The crustal structure and subsidence history of aseismic ridges and mid-plate island chains 

    Detrick, Robert S. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1978-09)
    This thesis consists of three papers examining problems related to the crustal structure, isostasy and subsidence history of aseismic ridges and mid-plate island chains. Analysis of gravity and bathymetry data across the ...
  • The Influence of differential production and dissolution on the stable isotope composition of planktonic foraminifera 

    Erez, Jonathan (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1978-11)
    Planktonic foraminifera from plankton tows, sediment traps and sediments from the central North Atlantic were studied in order to understand how they acquire their oxygen and carbon isotope compositions. Shallow dwelling ...
  • Geology of the passive margin off New England 

    Austin, James A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1978-12)
    The results of a detailed geophysical investigation conducted by the Woods Hole Oceanographic Institution in 1975 have been used in conjunction with other available information to reconstruct the geologic history of ...
  • Comparison of laboratory and in situ compressional-wave velocity measurements on sediment cores from the western North Atlantic 

    Tucholke, Brian E.; Shirley, Donald J. (American Geophysical Union, 1979-02-10)
    Laboratory and in situ velocity measurements have been made on six piston cores taken in the western North Atlantic Ocean. Sediments from the southwestern Bermuda Rise and Greater Antilles Outer Ridge are clays having ...
  • The evolution of the Indian Ocean triple junction and the finite rotation problem 

    Tapscott, Christopher Robert (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-06)
    A major goal in the study of plate tectonics is the acquisition of a knowledge of the history of relative motion among the rigid plates of the earth's lithosphere. The three papers of this thesis contribute to this effort ...
  • Bottom currents and abyssal sedimentation processes south of Iceland 

    Shor, Alexander N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-10)
    An investigation was carried out to observe the geologic effects of steady bottom currents on sediments of East Katla Ridge on the southern insular rise of Iceland. Near-bottom southwest to west-flowing currents exceeded ...
  • The nature and origin of fine-scale sea-floor relief 

    Shih, John Shai-Fu (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-12)
    Bathymetric profiles of mid-ocean ridges show that the morphology of ridge crests and the roughness of sea-floor relief created there is commonly related to the spreading rate. To study the creation of fine-scale sea-floor ...
  • Geothermal processes at the Galapagos Spreading Center 

    Green, Kenneth Edward (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-02)
    The measurements of the heat flow field of the Galapagos Spreading Center in an area of about 570 km2 reveal the planform of the conductive flux and permit the first truly areal estimate of the near-axis heat flux for ...
  • Composition and characteristics of particles in the ocean : evidence for present day resuspension 

    Richardson, Mary Josephine (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-05)
    This study of particulate matter in the water column and the underlying surface sediments verifies the occurrence of local, present-day resuspension in the deep sea. The location of the major portion of this work was the ...
  • Applications of time series analysis to geophysical data 

    Chave, Alan D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-06)
    This thesis consists of three papers applying the techniques of time series analysis to geophysical data. Surface wave dispersion along the Walvis Ridge, South Atlantic Ocean, is obtained by bandpass filtering the ...