Index Catalog // ScholarsArchive@OSU

Marine geology of the continental margin off southern Oregon

Creator:: Spigai, Joseph John
Abstract:: The continental margin off southern Oregon, which includes the shelf and slope from Cape Blanco to the Oregon-California border, exhibits a distinctive marginal-plateau structural pattern which divides the margin into the continental shelf, the upper continental slope and its associated benches, and the lower continental slope. Lutum transport and deposition...
Resource Type:: Dissertation

Sedimentary texture--a key to interpret deep-marine dynamics

Creator:: Allen, David William
Abstract:: The processes responsible for transporting and depositing thick sections of coarse-grained terrigenous clastics on the abyssal floor and for forming associated sedimentary structures are still conjectural. Many workers attribute coarse deep-sea sediments and their probable lithified equivalent, the graywackes of flysch deposits to some type of density movement. Deductions concerning...
Resource Type:: Dissertation

Structure and stratigraphy of tertiary and quaternary strata, Heceta Bank, Central Oregon shelf

Creator:: Muehlberg, Gary Edward
Resource Type:: Masters Thesis

Sediment transport on the northern Oregon continental shelf

Creator:: Harlett, John Charles
Abstract:: The distribution of surface sediments on the northern Oregon continental shell is characterized by a nearshore sandy facies and an outer shelf muddy facies, separated by a mid-shelf zone of mixed sand and mud. Currents which have been measured at 130 centimeters above the bottom indicate that the distribution of...
Resource Type:: Dissertation

Deformation in the Peru Trench, 6⁰-10⁰S

Creator:: Prince, Roger Allan
Abstract:: Detailed surveys of several segments of the Peru Trench show that the region between 6° to 10⁰ S is an area of recent deformation. Seismic reflection records across the axis of the trench show faulting, uplift, and tilting of the sedimentary fill and the acoustic basement. Uplift of the acoustic...
Resource Type:: Masters Thesis

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

Cascadia channel : the anatomy of a deep-sea channel

Creator:: Griggs, Gary B.
Resource Type:: Dissertation

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

Tectonics of the East Pacific Rise, 5⁰ to 12⁰S

Creator:: Rea, David K.
Abstract:: The portion of the East Pacific Rise (EPR) between 5° and 12°S can be subdivided into three areas by fracture zones that offset the rise axis at about 6.5°S and 9°S. In all three regions, the spreading axis of the EPR is defined by a topographic block 300 to 350...
Resource Type:: Dissertation

Morphology, shallow structure, and evolution of the Peruvian continental margin, 6⁰ to 18⁰ S

Creator:: Masias Echegaray, Juan Antonio
Abstract:: Detailed bathymetric survey data were collected along the Peruvian continental margin and were compiled by the author and other investigators to construct a new bathymetric map for the area between 6° to 18°S latitude. Based on this map and individual bathymetric profiles, the continental shelf topography is essentially flat. Four...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Marine geology of the continental margin off southern Oregon

Sedimentary texture--a key to interpret deep-marine dynamics

Structure and stratigraphy of tertiary and quaternary strata, Heceta Bank, Central Oregon shelf

Sediment transport on the northern Oregon continental shelf

Deformation in the Peru Trench, 6⁰-10⁰S

Peruvian deep-sea sediments : evidence for continental accretion

Cascadia channel : the anatomy of a deep-sea channel

Sediments and tectonics of the Gorda-Juan de Fuca plate

Tectonics of the East Pacific Rise, 5⁰ to 12⁰S

Morphology, shallow structure, and evolution of the Peruvian continental margin, 6⁰ to 18⁰ S

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