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Vertical distribution of radioactivity in the Columbia River estuary

Creator:: Hanson, Peter James
Abstract:: In situ salinity, turbidity and temperature were measured at discrete depths and water samples for radioanalysis were simultaneously collected in the Columbia River Estuary using a specially designed instrument package. Particulate radioactivity was concentrated by filtration and the dissolved radioactivity by evaporation or ferric oxide bulk precipitation. Radioanalysis was by...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Peter James Hanson (Name of

Water tracing with soluble metal chelates and neutron activation analysis : a laboratory and field study

Creator:: Hanson, Peter James
Abstract:: Research on the application of soluble, metal chelates for water tracing using thermal neutron activation analysis for tracer determination has led to the development of several tracers with promising solution stabilities (conservative behavior) and determination sensitivities. The solution stabilities of the ethylenediamine tetraacetic acid (EDTA) and the diethylenetriamine pentaacetic acid...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF PETER JAMES HANSON for the Ph. D

Measurement of radiant energy over a mixed water body

Creator:: Maughan, Paul M.
Resource Type:: Dissertation
Full Text:: I wish to express my appreciation to Dr. Wayne V. Burt for his assistance in this research. I am

Rapid equilibrium response of a marine diatom to external and internal nutrient concentrations

Creator:: Lundy, Daniel Wayne
Abstract:: Batch cultures of Skeletonema costatum were grown under continual light saturation, with nitrogen nutrients in limiting concentrations. Population parameters measured included ¹⁴C uptake, chlorophyll a, particulate carbon and nitrogen, and ammonia, nitrate, and nitrite, concentrations. A method was developed for measuring cellular nutrient reservoirs in laboratory cultures of marine phytoplankton....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel Wayne Lundy (Name

Late Quaternary radiolarian paleo-oceanography of the Panama Basin, eastern equatorial Pacific

Creator:: Dinkelman, Menno Gustaaf
Abstract:: A total of 57 core top samples from the Panama Basin were used in a quantitative study of complete radiolarian thanatocoenoses to determine whether surface oceanographic conditions are reflected in the microplankton faunas deposited onto and buried in the sea floor. Information obtained from this study was used to resolve...
Resource Type:: Dissertation
Full Text:: . I thank Drs. Cyrus W. Field and Wayne V. Burt for their assistance as members of my committee. A

Mantle melting and heterogeneity along mid-ocean ridges : insight from basalt geochemistry along axial depth and morphologic gradients for intermediate spreading rate systems

Creator:: Russo, Christopher J.
Abstract:: This investigation focuses on gaining a better understanding of the complex relationship between melt generation, source variability and mid-ocean ridge morphology. The approach adopted here uses a variety of geochemical techniques to evaluate the ability of 'global' models to predict regional scale geochemical variability associated with axial depth and axial...
Resource Type:: Dissertation
Full Text:: Abstract approved: ____________________________________________________ David W. Graham This

Bacterioplankton in the Oregon upwelling system: distribution, cell-specific leucine incorporation, and diversity

Creator:: Longnecker, Krista
Abstract:: Marine bacterioplankton play an important role in global elemental cycles because they return carbon dioxide and nutrients to the biosphere as they reduce organic matter. Furthermore, marine bacterioplankton are not uniformly active, and subpopulations of the in situ community may be more or less active at any given time. Defining...
Resource Type:: Dissertation
Full Text:: members (Kate Field, Steve Giovannoni, Wayne Huber, and Ricardo Letelier) have also asked intriguing and

Effects of ocean water on the soluble-suspended distribution of Columbia River radio-nuclides

Creator:: Evans, David W. (David William), 1947-
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF DAVID WILLIAM EVANS (Name) in

The Southeast Indian Ridge water contents of MORB glasses and chemical effects of propagating rifts

Creator:: Sylvander, Brendan A.
Resource Type:: Masters Thesis
Full Text:: :_ David. M. Christie Water contents of over 200 MORB glasses from the Southeast Indian Ridge (SEIR

Radioactivity of sediments in the Columbia River estuary

Creator:: Jennings, Charles David
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF CHARLES DAVID JENNINGS for the M

ScholarsArchive@OSU

Vertical distribution of radioactivity in the Columbia River estuary

Water tracing with soluble metal chelates and neutron activation analysis : a laboratory and field study

Measurement of radiant energy over a mixed water body

Rapid equilibrium response of a marine diatom to external and internal nutrient concentrations

Late Quaternary radiolarian paleo-oceanography of the Panama Basin, eastern equatorial Pacific

Mantle melting and heterogeneity along mid-ocean ridges : insight from basalt geochemistry along axial depth and morphologic gradients for intermediate spreading rate systems

Bacterioplankton in the Oregon upwelling system: distribution, cell-specific leucine incorporation, and diversity

Effects of ocean water on the soluble-suspended distribution of Columbia River radio-nuclides

The Southeast Indian Ridge water contents of MORB glasses and chemical effects of propagating rifts

Radioactivity of sediments in the Columbia River estuary

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