Index Catalog // ScholarsArchive@OSU

Late quaternary oceanic circulation along the Pacific Coast of South America

Creator:: Molina-Cruz, Adolfo
Abstract:: The distribution patterns of quartz and opal contents and the distribution patterns of radiolarian assemblages, in the sediments of the southeastern Pacific, are largely controlled by both the surface winds and the mixed-layer oceanic circulation. The distribution pattern of quartz is related to eolian and ice-rafted transport, as well as...
Resource Type:: Dissertation
Full Text:: ) the surface Subantarctic-Temperate water mass, 3) the Chile Current, 4) the Peru Current, 5) the

Holocene accumulation rates of pelagic sediment components in the Panama Basin, Eastern Equatorial Pacific

Creator:: Swift, Stephen Atherton
Abstract:: Holocene bulk sediment and component accumulation rates were measured in twenty-eight piston and gravity cores taken from the floor of the western Panama Basin and on the surrounding ridges. Radiocarbon ages and oxygen isotope curves provided Holocene age control in nine cores. Time datums in nineteen other cores were inferred...
Resource Type:: Masters Thesis
Full Text:: remaining cores (Table 5). The density of core V19-29 for which there was no textural data, was calculated

Sedimentary basins of the Peru continental margin : structure, stratigraphy, and cenozoic tectonics from 6°S to 16°S latitude

Creator:: Thornburg, Todd Mark
Resource Type:: Masters Thesis
Full Text:: . Seismic reflection line interpretations across 22 the West Pisco Basin (13°S to l6°S lat.) 5 Geophysical

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:: basis of carbonate stratigraphies to levels no older than 130, 000 years B. P. Although the sample

Paleo-oceanography of the subtropical southeastern Pacific during late Quaternary : a study of radiolaria, opal and quartz contents of deep-sea sediments

Creator:: Molina-Cruz, Adolfo
Abstract:: Micropaleontological data have been analyzed through mathematical and statistical procedures, in order to: (1) establish the distribution pattern of radiolarian assemblages in the surface sediments, (2) establish the relationship of these assemblages with oceanographic variables, (3) determine the faunal composition down-core with respect to the faunal surface pattern, and (4)...
Resource Type:: Masters Thesis
Full Text:: Equatorial factor, (3) the Peru (current) factor, (4) the Chile (current) factor, and (5) the Backwater

Late Neogene tectonics of the mouth of the Gulf of California

Creator:: Ness, Gordon Everett
Abstract:: Anomaly timescales for the last 90 million years, derived from marine magnetic profiles and published prior to mid-1979, are summarized, illustrated for comparison, and critically reviewed. A revised timescale is constructed using calibration points which fix the ages of anomalies 2.3', 5.5, 24, and 29. An equation is presented for...
Resource Type:: Dissertation
Full Text:: forming within the gulf was slowly subducting beneath Baja California. By 4-5 MY subduction ceased and

Sedimentation in small active-margin estuaries of the northwestern United States

Creator:: Peterson, Curt D.
Resource Type:: Dissertation
Full Text:: dominated deposition (10 x to 7.5 x yrs B.P.); (2) deep-water estuarine deposition (7.5 x 10 to 5 x yrs B.P

Relation between natural radioactivity in sediment and potential heavy mineral enrichment on the Washington continental shelf

Creator:: Scheidt, Ronald Carl
Abstract:: Natural radionuclides may be indicators for dense mineral placers along marine shorelines. Relict beach and river deposits occur in continental shelf sediments. These deposits result from the reworking of beach sands by wave action during the Holocene Transgression. Some dense, resistant minerals associated with placer deposits are known to contain...
Resource Type:: Masters Thesis
Full Text:: Hypersthene l(?) 3.4-3.5 5-6 aG taken as 1. 0. bData from Berry and Mason, 1959. CEstimates only, no data

The relationship between sedimentation rate and total organic carbon content in ancient marine sediments

Creator:: Ibach, Lynne E. Johnson
Abstract:: Sedimentation rate could become a new exploration tool for evaluating the source rock potential of sedimentary basins in frontier regions. Petroleum source rocks are defined on the basis of total organic carbon by weight percent. An analysis of Deep Sea Drilling Project (DSDP) cores indicates that there exists quantitative relationships...
Resource Type:: Masters Thesis
Full Text:: ................................................... 3 Lithology................................................. 5 Age

The classification and structure of marine macrobenthic assemblages at Arthur Harbor, Anvers Island, Antarctica

Creator:: Richardson, M. D. (Michael D.)
Abstract:: In January-February 1971 five replicate 0.07 m² Van Veen grabs were obtained from each of 12 stations in Arthur Harbor and nine Van Veen grabs were obtained from two stations in nearby Bismark Strait. The 69 grab samples yielded 78,395 individuals which were separated into 282 taxa, including 108 species...
Resource Type:: Dissertation
Full Text:: taxa, including 108 species of annelids (54. 5% of the in- dividuals), 117 species of arthropods (30.3

ScholarsArchive@OSU

Late quaternary oceanic circulation along the Pacific Coast of South America

Holocene accumulation rates of pelagic sediment components in the Panama Basin, Eastern Equatorial Pacific

Sedimentary basins of the Peru continental margin : structure, stratigraphy, and cenozoic tectonics from 6°S to 16°S latitude

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

Paleo-oceanography of the subtropical southeastern Pacific during late Quaternary : a study of radiolaria, opal and quartz contents of deep-sea sediments

Late Neogene tectonics of the mouth of the Gulf of California

Sedimentation in small active-margin estuaries of the northwestern United States

Relation between natural radioactivity in sediment and potential heavy mineral enrichment on the Washington continental shelf

The relationship between sedimentation rate and total organic carbon content in ancient marine sediments

The classification and structure of marine macrobenthic assemblages at Arthur Harbor, Anvers Island, Antarctica

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