Essays about: "Seismic Anisotropy"

Found 5 essays containing the words Seismic Anisotropy.

  1. 1. Electron Backscatter Diffraction (EBSD) Analysis and Predicted Physical Properties of Shocked Quartz from the Chicxulub Impact Crater, Mexico

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Erina Prastyani; [2022]
    Keywords : EBSD; SEM; shocked quartz; quartz; CPO; seismic velocity; anisotropy; Chicxulub; impact crater; pole figures; MTEX toolbox; microstructural features; planar deformation feature; planar fracture; feather features;

    Abstract : As one of the most common minerals in crustal rocks, quartz has been widely used as an indicator for shock metamorphism. Shocked quartz is found in the Chicxulub impact crater, an impact crater that has been linked to the Cretaceous-Tertiary extinction ~66 million years ago. READ MORE

  3. 2. Shear-Wave Splitting Observed in Local Earthquake Data on the Reykjanes Peninsula, SW Iceland

    University essay from Geofysik

    Author : Darina Buhcheva; [2014]
    Keywords : shear-wave splitting; local earthquakes; Iceland;

    Abstract : Shear-wave splitting is a phenomenon observed in almost all in situ rocks. Due to propagation through stress-aligned and fluid-saturated microcracks and fractures the initial shear wave splits into two almost orthogonal waves which propagate with different velocities along similar ray paths. READ MORE

  4. 3. Elastic Anisotropy of Deformation Zones in both Seismic and Ultrasonic Frequencies: An Example from the Bergslagen Region, Eastern Sweden

    University essay from Geofysik

    Author : Pouya Ahmadi; [2013]
    Keywords : Elastic Anisotropy; Seismic Anisotropy; Deformation Zone; Elastic Stiffness Tensor; LDI measurements; Seismic Data;

    Abstract : Estimation of elastic anisotropy, which is usually caused by rock fabrics and mineral orientation, has an important role in exploration seismology and better understanding of crustal seismic reflections. If not properly taken care of during processing steps, it may lead to wrong interpretation or distorted seismic image. READ MORE

  5. 4. Processing of shear waves from VSP data at the Forsmark site investigation

    University essay from Geofysik

    Author : Gwendal Salmon; [2008]
    Keywords : ;

    Abstract : The Forsmark Nuclear Plant is one of the largest in Sweden and produces around one sixth of the total electrical energy in the country. It is situated on the east coast of Sweden in the Uppland region. READ MORE

  6. 5. First-Principles Study of Elastic Properties of Fe-Mg alloy at Earth’s core pressure

    University essay from Institutionen för fysik, kemi och biologi

    Author : Ulf Kargén; [2008]
    Keywords : Density Functional Theory; EMTO; Earth’s core; High-Pressure Alloying; Fe-Mg alloy; Elastic Constants;

    Abstract : The purpose of this thesis has been to investigate the elastic properties of an fcc FeMg alloy with 10 at.% magnesium under high pressure. READ MORE