Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Seismic arrays"”.
-
Study of three-dimensional heterogeneity beneath seismic arrays in central California and Yellowstone, Wyoming.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Science.
-
Planetary Seismology using Single-Station and Small-Aperture Arrays: Implications for Mars and Ocean Worlds
… single-station seismometers and small-aperture seismic arrays in analog settings can quantify instrument capabilities, develop methodologies to detect and locate seismicity, and constrain internal structure. First, I used a single-station seismometer in Germany to study how the NASA InSight …
-
Surface Wave Derived Shear Velocity Structure of the Gamburtsev Subglacial Mountains, Transantarctic Mountains, and West Antarctica and Shallow Seismicity of the Mariana and Tonga Subduction Zones
Recent advances in seismic instrumentation have allowed researchers to undertake focused investigations of regions previously inaccessible. From the bottom of the sea to the coldest, driest places on earth, we are now able to deploy seismometers to remote locations and be certain of collecting …
-
Monitoring and Imaging Seismic Velocity Changes Across Temporal and Spatial Scales
Relative changes in seismic velocity (dv/v) are associated with changes in mechanical properties of crustal materials, and can reflect the perturbations in stress fields, rock damage, and fluid content. Interferometry of seismic ambient noise enables the continuous monitoring of dv/v. In this …
-
Layered crustal and mantle structure and anisotropy beneath the Afar Depression and Malawi Rift Zone
… lithosphere. The studies herein represent teleseismic analyses of the velocity and thermomechanical structure of the crust and mantle beneath the Afar Depression and Malawi Rift Zone (MRZ) of the East African Rift System. Within the Afar Depression, the first densely-spaced receiver function …
-
Surface Wave Propagation and Global Crustal Tomography
… measurements that are valid in regions near seismic stations. Calculations of sensitivity kernels for inter-station measurements show that exact travelling-wave representation of Green tensor is necessary when station spacing is close to or smaller than the seismic wavelength. This …
-
Seismicity of the Bath County, Virginia locale
… blasts were monitored by mobile and fixed seismic arrays to develop a crustal velocity model in the Bath County, Virginia locale (June-August, 1982). The results indicate an upper-layer with P and S velocities of 5.45 km/sec and 3.07 km/sec respectively, and a thickness 3 km. Data from the …
-
Seismicity and structure of the eastern Gawler Craton and Lake Eyre region
… region is associated with pronounced intraplate seismic activity and thick sedimentary cover that potentially obscures the elusive boundary between older Proterozoic and younger Phanerozoic eastern Australia. Despite this, the area had limited seismic data coverage due to its remoteness and the …
-
Seismicity and structure of the eastern Gawler Craton and Lake Eyre region
… region is associated with pronounced intraplate seismic activity and thick sedimentary cover that potentially obscures the elusive boundary between older Proterozoic and younger Phanerozoic eastern Australia. Despite this, the area had limited seismic data coverage due to its remoteness and the …
-
Heterogeneities in the D” layer beneath the southwestern Pacific inferred from anomalous P- and S-waves
… Methode und der Aufspaltung des Gesamtempfängerarrays in Subarrays gewonnen wurde, deutet darauf hin, dass die beobachteten Diskontinuitäten als intermittierende laterale Heterogenitäten mit einer Wellenlänge von einigen hundert km charakterisiert werden können. Die Kern-Mantel-Grenze (KMG) …