Seismic image of the subducted trailing fragments of the Farallon plate

@article{Lee1997SeismicIO,
  title={Seismic image of the subducted trailing fragments of the Farallon plate},
  author={Suzan van der Lee and Guust Nolet},
  journal={Nature},
  year={1997},
  volume={386},
  pages={266-269}
}
The Farallon plate was an enormous oceanic plate located west of the Americas during the Cenozoic and Mesozoic eras. This plate has now been almost completely subducted beneath the American plates. In the Northern Hemisphere, the Farallon plate broke up to form a number of independent smaller plates1–3 when its western edge approached the North American plate. Here we present a tomographic image of the subducted trailing fragments of the Farallon plate in the upper mantle beneath the western… 
Mesozoic plate-motion history below the northeast Pacific Ocean from seismic images of the subducted Farallon slab
TLDR
A three-dimensional spherical computer model of mantle convection is used to show that seismic images of the subducted Farallon plate provide strong evidence for a Mesozoic period of low-angle subduction under North America.
Two-stage subduction history under North America inferred from multiple-frequency tomography
Eastward subduction of oceanic tectonic plates has shaped the geologic history of western North America over the past 150 million years. The mountain-building and volcanism that brought forth the
Slab detachment control on mafic volcanic pulse and mantle heterogeneity in central Mexico
Seismic tomography studies and plate reconstructions suggest that the Farallon slab broke off shortly before subduction ended off southern Baja California. However, the progress of detachment in time
Tomographic search for missing link between the ancient Farallon subduction and the present Cocos subduction
SUMMARY A striking feature of the tomographic images of the Earth’s mid-mantle is the long, high-velocity belt extending in a north‐south direction under the North and South American continents,
Tracing the Farallon plate through seismic imaging with USArray
The Farallon plate system has been subducting off the western United States since at least the middle Mesozoic. This plate has undergone virtually every subduction process during this time including
The Fate of the Juan de Fuca Plate
Tomography and thermal state of the Cocos plate subduction beneath Mexico City
[1] The geometry and thermal state of the subducting Cocos plate beneath Mexico City has been enigmatic because of the absence of a deep Wadati-Benioff zone. We present a tomographic image of the
Slabs Do Not Go Gently
TLDR
High-resolution seismic tomography reveals an active vertical tear in a descending ocean plate off the coast of Japan, and correlates the images directly with measurements of stress revealed by active seismic sources.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 24 REFERENCES
Shape of the subducted Rivera and Cocos plates in southern Mexico: Seismic and tectonic implications
The geometry of the subducted Rivera and Cocos plates beneath the North American plate in southern Mexico was determined based on the accurately located hypocenters of local and teleseismic
Large scale three dimensional P velocity structure beneath the Western U. S, and the lost Farallon plate
The results of a recent large scale three-dimensional study of P velocity beneath North America are analyzed from the point of view of the search for the fossil Farallon plate in the mantle beneath
Do microplates in subduction zones leave a geological record
Active microplate boundaries in ocean-continent subduction zones may induce deformation of the overlying plate and spatial or geochemical variations in the volcanic arc. We discuss two modern cases.
Implications of Plate Tectonics for the Cenozoic Tectonic Evolution of Western North America
Magnetic anomaly patterns in the northeast Pacific Ocean combined with plate theory indicate that a trench existed offshore from western North America during mid-Tertiary time and that the present
Geometry of Subducted Slabs Related to San Andreas Transform
Development of the San Andreas transform by rise-trench encounter in coastal California influenced the structural evolution of a large region within the adjacent continent. Continuation of arc
Mantle shear structure beneath the Americas and surrounding oceans
Maps of lateral variation in shear velocity within the mantle beneath North and South America, their surrounding oceans, and parts of Africa and Eurasia are produced from inversion of travel times of
Uncertainties and implications of the Late Cretaceous and Tertiary position of North America relative to the Farallon, Kula, and Pacific Plates
We present updated global plate reconstructions and calculated uncertainties of the Pacific, Kula, and Farallon/Vancouver plates relative to North America for selected times since 68 Ma. Improved
Physical model of source region of subduction zone volcanics
The thermal structure of a generic subduction zone is investigated to elucidate the source region of subduction zone volcanics. The steady state thermal field is evaluated for a model subduction zone
Upper mantle S velocity structure of North America
We have inverted fundamental and higher-mode Rayleigh waveforms from 685 vertical component broadband seismograms with wave paths over North America to obtain an image of the upper mantle S velocity
...
1
2
3
...