Crustal and uppermost mantle structure beneath the United States
نویسندگان
چکیده
منابع مشابه
Structure of the crust and uppermost mantle beneath the western United States revealed by ambient noise and earthquake tomography
[1] Ambient noise tomography and multiple plane wave earthquake tomography are new methods of surface wave analysis that yield much more highly refined information about the crust and uppermost mantle than traditional surface wave techniques. Applied together to data observed at more than 300 broadband seismic stations from the Transportable Array component of the EarthScope USArray, these meth...
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The structure of the crust and uppermost mantle beneath Iceland, the keys to understanding the magma plumbing system of the hotspot and hotspot–ridge interaction, was poorly constrained in previous seismological investigations. Here we develop a three-dimensional P-wave velocity model of the Icelandic crust and uppermost mantle from tomographic inversion of over 3500 first-arrivals from local e...
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S U M M A R Y Rayleigh wave phase velocity maps in southern Africa are obtained at periods from 6 to 40 s using seismic ambient noise tomography applied to data from the Southern Africa Seismic Experiment (SASE) deployed between 1997 and 1999. These phase velocity maps are combined with those from 45 to 143 s period which were determined previously using a two-planewave method by Li & Burke. In...
متن کاملMantle structure beneath the western United States and its implications for convection processes
[1] We present tomographic images of the mantle structure beneath the western United States. Our Dynamic North America Models of P and S velocity structure (DNA07‐P and DNA07‐S) use teleseismic body waves recorded at ∼600 seismic stations provided by the Earthscope Transportable Array and regional networks. DNA07‐P and ‐S benefit from the unprecedented aperture of the network while maintaining ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2016
ISSN: 2169-9313,2169-9356
DOI: 10.1002/2016jb012887