Depth‐Dependent Azimuthal Anisotropy Beneath the Juan de Fuca Plate System
نویسندگان
چکیده
منابع مشابه
Wiring the Juan de Fuca Plate for Science: The Neptune System
NEPTUNE will wire the Juan de Fuca Plate in the northeast Pacific Ocean. It will enable in-depth study of life in extreme environments, plate tectonics, oceanography, and fisheries, to name but a few of the many topics. This will be accomplished by means of a multi-node submarine fiber-optic/power cable network deployed around the plate. It will provide power for the instrumentation as well a...
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Beneath the Pacific Northwest the Juan de Fuca plate, a remnant of the Farallon plate, continues subducting beneath the North American continent. To the east of the Cascadia subduction zone lies the Yellowstone Hotspot Track. The origins of this track can be traced back to the voluminous basaltic outpourings in theColumbia Plateau around 17Ma. If these basalts are the result of a largemelting a...
متن کاملEvidence for both crustal and mantle earthquakes in the subducting Juan de Fuca plate
[1] We investigate the relationship between high-precision hypocentres in the subducting Juan de Fuca plate beneath southwest British Columbia, and the velocity structure from receiver function analysis and reflection seismic data. 108 earthquakes at depths of 40 to 65 km were relocated using a double-difference algorithm to obtain precise earthquake locations. Correlation of the relocated seis...
متن کاملAzimuthal anisotropy in the D00 layer beneath the Caribbean
[1] The lowermost mantle beneath Central America has anisotropic seismic velocity structure manifested in shear wave splitting of signals from South American earthquakes recorded at North American broadband recording stations. Prior studies of deep mantle anisotropy in this region have characterized the structure as having vertical transverse isotropy (VTI), which is sufficient to explain a gen...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2020
ISSN: 2169-9313,2169-9356
DOI: 10.1029/2020jb019477