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Filtering by: Contributor advisor sim Bibee, L. Dale Remove constraint Contributor advisor sim: Bibee, L. Dale

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A comparison of seismic properties of young and mature oceanic crust

Creator:

Bee, Michel

Abstract:

Seismic properties (P, S velocities and Poisson's ratio) of young (0.75 m.y.) and mature (110 m.y.) oceanic crust are obtained by studying explosive refraction data collected in the Pacific Ocean using ocean bottom and downhole seismometers. A comparison of the results for the two regions indicates that the upper crustal...

Resource Type:

Dissertation
Microseismicity on the Gorda Ridge

Creator:

Solano-Borrego, Ariel E.

Abstract:

The seismicity at the northern section of the Gorda Ridge has been studied with Ocean Bottom Seismographs. Nearly one hundred earthquakes were located with RMS travel time residuals less than 0.5 seconds. Most of these events lie within or near the array and they are probably associated with the dynamics...

Resource Type:

Masters Thesis
Crustal structure and seismicity of the Gorda Ridge

Creator:

Solano-Borrego, Ariel E.

Abstract:

We have determined the seismic crustal structure of the northern part of the Gorda Ridge using signals generated by explosive charges and recorded on Ocean Bottom Seismometers. The shot pattern forms two parallel lines, one on the east flank and the other along the median valley. Inversion of the travel...

Resource Type:

Dissertation
Sonobuoy refraction study of the crust in the Gorda Basin

Creator:

Cook, Jeffrey A.

Abstract:

The Gorda Basin is a young oceanic plate which comes in direct contact with the convergent margin of western North America. Two long sonobuoy refraction profiles crossing the basin provide nearly continuous data for computing the velocity structure of the crust and adjacent continental slope. Time-term analysis utilizing multiple receivers...

Resource Type:

Masters Thesis
Seismic refraction survey of crustal and upper mantle structures in the West Philippine Basin

Creator:

Goodman, Dean

Abstract:

Crustal and upper mantle structures in the West Philippine Basin, along 17-18°N, have been determined using explosions as sources and ocean bottom seismometers to measure refracted compressional waves. Seismic refraction profiles out to nearly 500 km were completed. Shallow structure was measured using small shots, 1-240 lbs., and the deeper...

Resource Type:

Masters Thesis
Shallow crustal structure of the caldera of Axial Seamount, Juan de Fuca ridge

Creator:

van Heeswijk, Marijke

Abstract:

An airgun refraction line along the length of the caldera of Axial Seamount as recorded by three Ocean Bottom Seismometers has been analyzed using the tau-zeta inversion technique (Dorman and Jacobson, 1981). Five resulting velocity profiles show that the seismic velocities of the upper 1.4 km of the crust are...

Resource Type:

Masters Thesis

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Academic Affiliation

Geology6

Advisor

Bibee, L. Dale6

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1981 to 1987

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Creator

Solano Borrego, Ariel E.2
Bee, Michel1
Cook, Jeffrey A.1
Goodman, Dean1
van Heeswijk, Marijke1

Date

Date range begin – Date range end

Current results range from 1980 to 1986

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Decade

1980-19896

Degree Field

Geophysics6

Degree Level

Master's4
Doctoral2

Degree Name

Master of Science (M.S.)4
Doctor of Philosophy (Ph.D.)2

Language

English [eng]6

Non-Academic Affiliation

Oregon State University. Graduate School6

Peer Reviewed

No6

Resource Type

Masters Thesis4
Dissertation2

Rights Statement

Copyright Not Evaluated6

Subject

Earth -- Crust2
Gorda Ridge2
Sea-floor spreading2
Geology -- Pacific Ocean1
Geology -- Pacific Ocean -- Gorda Ridge1
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