Crustal structure and thickness along the Yellowstone hot spot track: Evidence for lower crustal outflow from beneath the eastern Snake River Plain
نویسندگان
چکیده
منابع مشابه
The Yellowstone-snake River Plain Seismic Profiling Experiment: Crustal Structure of the Eastern Snake River Plain
Seismic refraction profiles recorded layer. Crustal subsidence and periodic basaltic along the eastern Snake River Plain (ESRP) in southeastern Idaho during the 1978 YellowstoneSnake River Plain cooperative seismic profiling experiment are interpreted to infer the crustal velocity and attenuation (Q-i) structure of the ESRP. Travel-time and synthetic seismogram modeling of a 250 km reversed ref...
متن کاملCrustal velocity structure across the eastern Snake River Plain and the Yellowstone swell
Teleseismic receiver functions are used to estimate the crustal structure beneath a 36-station, 500-km-long, NW oriented linear array centered on the eastern Snake River Plain and crossing the Yellowstone hotspot swell 250 km SW of Yellowstone. Structure derived previously for this region from wide-angle reflection data is used as an initial model, and ffiis structure explains most features obs...
متن کاملLithospheric topography, tilted plumes, and the track of the Snake River–Yellowstone hot spot
[1] The trace of the Snake River–Yellowstone hot spot is the world’s best example of a mantle plume that has been overridden by continental lithosphere. The ‘‘standard model’’ calls for the plume head to rise under northern Nevada and be forced northward to form basalts of the Columbia Plateau; subsequent movement of North America to the southwest over the plume tail created a hot spot trace on...
متن کاملCrustal deformation of the Yellowstone–Snake River Plain volcano-tectonic system: Campaign and continuous GPS observations, 1987–2004
[1] The Yellowstone–Snake River Plain tectonomagmatic province resulted from Late Tertiary volcanism in western North America, producing three large, caldera-forming eruptions at the Yellowstone Plateau in the last 2 Myr. To understand the kinematics and geodynamics of this volcanic system, the University of Utah conducted seven GPS campaigns at 140 sites between 1987 and 2003 and installed a n...
متن کاملP and S wave velocity and VP / VS in the wake of the Yellowstone hot spot
[1] Seismic VP, VS, and VP/VS structure is imaged across the Yellowstone hot spot swell, including the hot spot track where magmatism occurred at the eastern Snake River Plain 6–10 m.y. B.P. Data are teleseismic P and S travel time delays that have been corrected for the well-understood upper mantle anisotropy and crustal structure. Amplitude variations in the imaged structures are 6.2%, 11.2%,...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2010
ISSN: 1525-2027
DOI: 10.1029/2009gc002787