Evidence for on‐going inflation of the Socorro Magma Body, New Mexico, from interferometric synthetic aperture radar imaging

@article{Fialko2001EvidenceFO,
  title={Evidence for on‐going inflation of the Socorro Magma Body, New Mexico, from interferometric synthetic aperture radar imaging},
  author={Yuri Fialko and Mark Simons},
  journal={Geophysical Research Letters},
  year={2001},
  volume={28}
}
Interferometric synthetic aperture radar (InSAR) imaging of the central Rio Grande rift (New Mexico, USA) during 1992–1999 reveals a crustal uplift of several centimeters that spatially coincides with the seismologically determined outline of the Socorro magma body, one of the largest currently active magma intrusions in the Earth's continental crust. Modeling of interferograms shows that the observed deformation may be due to elastic opening of a sill‐like intrusion at a rate of a few… 

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References

SHOWING 1-10 OF 29 REFERENCES

Finite source modelling of magmatic unrest in Socorro, New Mexico, and Long Valley, California

SUMMARY We investigate surface deformation associated with currently active crustal magma bodies in Socorro, New Mexico, and Long Valley, California, USA. We invert available geodetic data from these

A lower crustal extension to a midcrustal magma body in the Rio Grande Rift

A prominent and spatially localized phase arriving approximately 4 s after the initial compressional arrival, repeatedly observed on seismograms recorded in the central Rio Grande Rift from

A new map of the geographic extent of the Socorro mid-crustal magma body

For 35 years, strong reflected phases from the sill-like, mid-crustal Socorro magma body (SMB) have been observed on microearthquake seismograms recorded in the central Rio Grande rift, New Mexico.

Deformation and seismicity in the Coso geothermal area, Inyo County, California: Observations and modeling using satellite radar interferometry

Interferometric synthetic aperture radar (InSAR) data collected in the Coso geothermal area, eastern California, during 1993–1999 indicate ground subsidence over a ∼50 km^2 region that approximately

Modern uplift associated with a proposed magma body in the vicinity of Socorro

Analysis of repeated levelings in and near a part of the Rio Grande rift in New Mexico reveals a zone of anomalous relative uplift in the vicinity of Socorro. Maximum uplift relative to nearby bench

COCORP: new perspectives on the deep crust

Summary. Relict sutures from colliding continents, regions characterized by a “young” Mono, layering and faulting throughout the crust, mid-crustal magma traps, and seismic “bright spots” which

New evidence for the existence and internal structure of a thin layer of magma at mid-crustal depths near Socorro, New Mexico

The characteristics of a strong mid-crustal reflector in the Rio Grande rift southwest of Socorro, New Mexico, were studied using high-quality digital seismograms of microearthquakes. The data are

Use of reflection phases on microearthquake seismograms to map an unusual discontinuity beneath the Rio Grande rift

Microearthquake seismograms recorded by stations located in or bordering the Rio Grande rift near Socorro, New Mexico, frequently have two sharp impulsive phases following direct S. These phases

Thermal and mechanical aspects of magma emplacement in giant dike swarms

We consider the thermal history and dynamics of magma emplacement in giant feeder dikes associated with continental flood basalts. For driving pressure gradients inferred for giant dike swarms,

Strain accumulation in the Rocky Mountain states

Strain accumulation in trilateration networks in Montana, Utah, and New Mexico has been measured for over a decade. The network in New Mexico spans the Rio Grande rift near Socorro. The absence of