This research investigates Earth structure in the core-mantle boundary (CMB) region, where the solid rocky mantle meets the molten iron alloy core. At long wavelengths, the lower mantle is characterized by two nearly antipodal large low shear velocity provinces (LLSVPs), one beneath the Pacific Ocean the other beneath Africa and the southern Atlantic Ocean. However, fine-scale LLSVP structure as well as its relationship with plate tectonics, mantle convection, hotspot volcanism, and Earth's outer core remains poorly understood.
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- core-mantle boundary topography
- large low shear velocity province
- lowermost mantle
- Mantle plumes
- outermost core
- ultralow-velocity zone
- Core-mantle boundary--Remote sensing.
- Core-mantle boundary
- Partial requirement for: Ph.D., Arizona State University, 2012Note typethesis
- Includes bibliographical referencesNote typebibliography
- Field of study: Geological sciences