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Oceanography and Atmospheric Sciences and Meteorology
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
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Full-Text Articles in Physical Sciences and Mathematics
Geological Structures And Crustal Architecture Of The Cascadia Subduction Zone From The Integration Of Multiple Geophysical Datasets, Asif Ashraf
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
The Cascadia subduction zone (CSZ) has a high potential for an inevitable and devastating megathrust earthquake. This margin is characterized by a complex seismicity pattern. Particularly in Oregon, there is a seismically quiescent zone bounded by high seismicity regions to the north and south. To comprehend these variations in seismicity, it is important to study the differences in crustal architectures and physical properties (densities and magnetic susceptibilities) along the CSZ. The primary objectives are to develop two plate-scale 2D integrated models through different seismicity zones and to map major tectonic structures from filtered potential fields. The Juan de Fuca oceanic …
Drone-Based Magnetic Surveying In Eastern Nebraska, Sulaiman Albadi
Drone-Based Magnetic Surveying In Eastern Nebraska, Sulaiman Albadi
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
A magnetic survey is one of the methods used by scientists to detect subsurface features. Magnetic surveys can be carried out by walking on the surface of the earth with a magnetic field reading device called a magnetometer. Alternatively, a magnetometer can be installed on a moving platform (aircraft, boat, drone, bicycle) to conduct a more efficient magnetic survey. The geophysics team at the University of Nebraska at Lincoln assembled a drone-based magnetic survey system in 2019 (Jacobson and Filina, 2019) that has proven effective in magnetic readings over the Northern Bounding Fault (NBF) in eastern Nebraska (Jacobson and Filina, …