The effect of energy feedbacks on continental strength
Article Abstract:
The strength profile of the continental lithosphere and continental deformation are investigated by solving the fully coupled energy, momentum and continuum equations, which reveals feedback processes leading to a significantly weaker dynamic strength evolution. Spontaneous development of mid-crustal detachment faults and an additional decoupling layer between the lower crust and mantle are found in the model, explaining the development of decoupling layers accommodating hundreds of kilometers of horizontal motions during continental deformation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Lithospheric structure of the Rio Grande rift
Article Abstract:
A high-resolution, regional passive seismic experiment in the Rio Grande rift region of the southwestern United States has produced new images of upper-mantle velocity structure and crust-mantle topography. It is proposed that the laterally distributed pure shear extension is a combined effect of low strain rate and a regionally elevated geotherm, which is possibly abetted by pre-existing lithospheric structures at the time of rift initiation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Subcontinental-scale crustal velocity changes along the Pacific-North America plate boundary
Article Abstract:
Geodetic evidence for a coherent, subcontinental-scale change in teCtonic velocity along a diffuse 1000-km wide deformation zone is reported. Observations are derived from continuous Global Positioning System data collected over the past decade across the Basin and Range province, which absorbs approximately 25 percent of Pacific-North America relative plate motion.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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