Index Catalog // ScholarsArchive@OSU

Cenozoic biogenic silica sedimentation in the Antarctic Ocean, based on two deep sea drilling project sites

Creator:: Brewster, Nancy Ann
Abstract:: The Antarctic Ocean during the Cenozoic experienced four periods of increased surface productivity: the Middle Eocene; the beginning of the Miocene; the Middle Miocene; and near the Miocene-Pliocene boundary. The fourth increase in productivity began five million years ago and has since progressively increased to the present level of intense...
Resource Type:: Masters Thesis

Physical-biological interactions in the Southern Ocean

Creator:: Moore, Jefferson Keith
Abstract:: Physical-biological interactions in the Southern Ocean were investigated using remote sensing data from several different satellite sensors. Satellite sea surface temperature data were used to study the dynamics of the Antarctic Polar Front (PF). Satellite ocean color data were used to estimate surface chlorophyll concentrations and their relation to various...
Resource Type:: Dissertation
Full Text:: phytoplankton biomass seen at the Antarctic coast and near Southern Ocean islands. Interactions between ocean

Spatial structure of the physical and biological distributions across the Antarctic Polar Front in austral spring and summer

Creator:: Howard, Cidney
Abstract:: Mesoscale surveys to examine the relationship between the physical processes and biological response along the Antarctic Polar Front (PF) were conducted as part of the US JGOFS Southern Ocean Program during austral spring and summer 1997/98. Multiple crossings of the PF near 170° W, using a towed undulating instrument, provided...
Resource Type:: Masters Thesis
Full Text:: in the deep ocean. A small fraction of the sinking organic matter is buried as sediment and results

Consolidation characteristics of calcareous deep sea-floor sediments from the Panama Basin

Creator:: Kao, Yeoung Ting
Abstract:: Calcareous sediments containing a large percentage of foraminiferal microskeletal tests were taken from sites in the Panama Basin and subjected to an investigation to determine the consolidation characteristics of this type of soil. The consolidation-stress curves and the time rate of consolidation curves in particular were investigated in this study....
Resource Type:: Masters Thesis
Full Text:: deep ocean sediment. They indicated that at low effective stresses the value of rate of secondary

A microprobe study of metalliferous sediment components

Creator:: Eklund, William Alan
Abstract:: Examination of polished sections of manganese micronodules from metalliferous sediments from the Bauer Deep reveals sequences of ferromanganese deposition which are consistent for micronodules from a single sediment sample and imply a common depositional history for members of such assemblages. The relatively simple 'stratigraphy' of manganese micronodules, as compared to...
Resource Type:: Masters Thesis
Full Text:: MICROPROBE STUDY OF METALLIFEROUS SEDIMENT COMPONENTS Abstract approved: Examination of polished sections

Trace element studies of metalliferous sediments in cores from the East Pacific Rise and Bauer Deep, 10⁰ S

Creator:: Kendrick, John William
Abstract:: Major (Fe, Mn, Al) and minor (Cr, Mo, Pb, Zn, Cd) element analyses of metalliferous sediments in cores from the East Pacific Rise and Bauer Deep indicate that the Bauer Deep sediments are similar in chemistry and origin to metalliferous sediments of the East Pacific Rises. Fe, Pb, and Zn...
Resource Type:: Masters Thesis
Full Text:: important if actively spreading mid-ocean ridges are a source of rnetalliferous sediment. The disagreement

Peruvian deep-sea sediments : evidence for continental accretion

Creator:: Rosato, Victor Joseph
Abstract:: In order to determine whether the sediments found on the landward wall of the Peru Trench are accreted Nazca Plate sediments, the clay mineralogy and organic carbon contents of 52 surface samples were submitted to factor analysis. Q-mode factor analysis resolved the data from the Nazca Plate and Peru continental...
Resource Type:: Masters Thesis
Full Text:: diatom-rich Quaternary dolomite that probably originated as calcareous sediment on the Nazca Ridge. If

Sediments and tectonics of the Gorda-Juan de Fuca plate

Creator:: Phipps, James B.
Abstract:: Cores taken from the ridge areas of the Gorda-Juan de Fuca plate have a sedimentation rate that is appropriate for the study of late Quaternary stratigraphy. An analysis of the clay and silt mineralogy of the cores using X-ray diffraction methods and by noting changes in the foraminiferan-radiolarian abundances in...
Resource Type:: Dissertation
Full Text:: into the marine environment. Such sediment also increased the quartz abundance in the quartz-rich

Elemental distributions in the components of metalliferous sediments from the Bauer and Roggeveen Basins - Nazca Plate

Creator:: Lopez, Carlos
Abstract:: Major and trace element analyses were made on biogenic carbonate, silica, and fish debris and on authigenic philhipsite, micronodules, and yellow and brown aggregates recovered from Bauer and Roggeveen Basin metalliferous sediments. Phase components and the bulk samples were analyzed by INAA and MS methods. Leachates and residues from ammonium...
Resource Type:: Masters Thesis
Full Text:: fine sediment fractions were also analyzed. The mild acid leach removed fish debris and carbonate

Holocene sediments of the South Atlantic Ocean : the calcite compensation depth and concentrations of calcite, opal and quartz

Creator:: Ellis, David Burl
Abstract:: The concentrations of calcite, opal and quartz have been measured in 113 South Atlantic core tops. The remainder of the total sample has been calculated as clay. A method for the quantitative determination of opal has been developed. Calcite is the dominant factor in South Atlantic sediments; its pattern can...
Resource Type:: Masters Thesis
Full Text:: the Antarctic Bottom Water (AABW) to be the single most important factor responsible for the sediment

ScholarsArchive@OSU

Cenozoic biogenic silica sedimentation in the Antarctic Ocean, based on two deep sea drilling project sites

Physical-biological interactions in the Southern Ocean

Spatial structure of the physical and biological distributions across the Antarctic Polar Front in austral spring and summer

Consolidation characteristics of calcareous deep sea-floor sediments from the Panama Basin

A microprobe study of metalliferous sediment components

Trace element studies of metalliferous sediments in cores from the East Pacific Rise and Bauer Deep, 10⁰ S

Peruvian deep-sea sediments : evidence for continental accretion

Sediments and tectonics of the Gorda-Juan de Fuca plate

Elemental distributions in the components of metalliferous sediments from the Bauer and Roggeveen Basins - Nazca Plate

Holocene sediments of the South Atlantic Ocean : the calcite compensation depth and concentrations of calcite, opal and quartz

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