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  • Seismic wave attenuation of the crust and upper mantle in the Himalaya and South-Central Tibetan Plateau

    Creator:
    Monigle, Patrick W.
    Abstract:
    Recent geophysical and geological investigations of the Tibetan plateau have given rise to conflicting models of plateau growth and deformation, where the presence and extent of partial melt in the crust could be a determining factor. Here we investigate the attenuation structure of the crust and upper mantle, as attenuation...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ John L. Nabelek Recent geophysical and geological investigations of the Tibetan plateau

  • Source Parametrization of Earthquakes along Juan de Fuca Transform Boundaries

    Creator:
    Sapkota, Birat
    Abstract:
    The Juan de Fuca plate system is what remains of Farallon plate subducting under the continental North American plate. Blanco Transform Fault Zone (BTFZ) consists of a network of strike-slip faults discontinued by pull apart depressions which o↵sets the Juan de Fuca Ridge and the Gorda Ridge. Detailed analysis of...
    Resource Type:
    Masters Thesis
    Full Text:
    Boundaries Abstract approved: John L. Nabelek The Juan de Fuca plate system is what remains of Farallon

  • Investigation of Slip and Tectonics of the Blanco Transform Fault using High-resolution Ocean Bottom Seismic Data

    Creator:
    Kuna, Václav M.
    Abstract:
    The dissertation concentrates on seismicity of the Blanco Transform Fault (BTF), a 350-km-long oceanic transform fault (OTF) in the northeast Pacific Ocean. I analyze data collected during the Blanco Transform Fault OBS experiment, which comprised of a 1-year deployment of 55 three-component seismometers co-located with differential pressure gauges on and...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ John Nábělek The dissertation concentrates on seismicity of the Blanco Transform Fault

  • Investigating the Tibetan crust through automatic S wave detection and travel-time tomography using the Hi-CLIMB seismic array

    Creator:
    Riddle, Evan
    Abstract:
    The Hi-CLIMB broadband seismic experiment (2002-2005) operated 233 stations along an 800 km long north-south line from the Himalayan foreland into the central Tibetan Plateau and in a 350x350 km sub-array within southern Tibet and central and eastern Nepal. Station spacing was approximately 8 km along the line and 50...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ John L. Nabelek The Hi-CLIMB broadband seismic experiment (2002-2005) operated 233

  • Seismotectonics of the Himalayas and the Tibetan Plateau : moment tensoranalysis of regional seismograms

    Creator:
    Baur, Jan R.
    Abstract:
    This thesis presents a detailed seismotectonic investigation of the Himalayan region and the Tibetan plateau as part of project HiCLIMB to explore the state of stress and the kinematics of the world’s largest continental collision zone. Using full regional waveforms for moment tensor inversion, source parameters for 107 earthquakes were...
    Resource Type:
    Masters Thesis
    Full Text:
    My first and foremost thanks go to my advisor John Nabelek for giving me the opportunity to work as

  • Earthquake Relocation in Three-Dimensional Velocity Models for Central Cascadia Continental Margin

    Creator:
    Ghorbani, Paria
    Abstract:
    We used data from Cascadia Initiative and Blanco Transform Fault Zone array of ocean bottom seismometers and hydrophone to look at the seismicity and specially depth of the Central Cascadia Continental Margin events. Events were detected and located automatically with Antelope software package (Boulder Real Time Technologies). We looked at...
    Resource Type:
    Capstone Project
    Full Text:
    . CONTRIBUTION OF AUTHORS John Nabelek and Jochen Braunmiller contributed on writing this manuscript by

  • Earthquake Relocation in Three-Dimensional Velocity Models for Central Cascadia Continental Margin

    Creator:
    Ghorbani, Paria
    Abstract:
    We used data from Cascadia Initiative and Blanco Transform Fault Zone array of ocean bottom seismometers and hydrophone to look at the seismicity and specially depth of the Central Cascadia Continental Margin events. Events were detected and located automatically with Antelope software package (Boulder Real Time Technologies). We looked at...
    Resource Type:
    Capstone Project
    Full Text:
    . CONTRIBUTION OF AUTHORS John Nabelek and Jochen Braunmiller contributed on writing this manuscript by

  • South-central Tibetan seismicity recorded by HiCLIMB seismic array

    Creator:
    Carpenter, N. Seth
    Abstract:
    The Hi-CLIMB seismic experiment (2002-2005) operated 233 sites along an 800-km long north-south array extending from the Himalayan foreland into the Central Tibetan Plateau and a flanking 350x350 km lateral array in southern Tibet and eastern Nepal. Data from the experiment’s second phase (June 2004 to August 2005), when stations...
    Resource Type:
    Masters Thesis
    Full Text:
    : __________________________________________________________________ John L. Nabelek The Hi-CLIMB seismic experiment (2002-2005) operated 233 sites along an

  • Crustal‐scale pure shear foreland deformation of western Argentina

    Creator:
    Meigs, Andrew J. and Nábělek, John
    Abstract:
    New analyses of teleseismic body waves from moderate earthquakes in western Argentina demonstrate that active shortening of the Andean foreland occurs on reverse faults extending to 40–50 km depth. Existing crustal‐scale models of foreland deformation invoke thin‐skinned fault geometries, which root into an east‐dipping mid‐crustal décollement. Whereas thin‐skinned thrust sheets...
    Resource Type:
    Article
    Full Text:
    shear foreland deformation of western Argentina Andrew J. Meigs1 and John Nabelek2 Received 15 March

  • Structural geology and dislocation modeling of the East Coyote anticline, eastern Los Angles basin

    Creator:
    Myers, Daniel J.
    Abstract:
    The 1994 Northridge and 1987 Whittier Narrows earthquakes warned Los Angeles residents of the threat of earthquakes due to unmapped, blind reverse faults and emphasized the importance of identifying and characterizing blind reverse faults in assessing the seismic hazard to the region. The East and West Coyote Hills in the...
    Resource Type:
    Masters Thesis