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.

Australia, Analysis, Electrostatic interactions, Coulomb potential

---

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.

United States, Natural history, Geological research, Faults (Geology), Rio Grande Rift

---

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.

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing, North America, Search and navigation equipment, Global Positioning Systems, Global Positioning System, Plate tectonics

Similar abstracts:

• Abstracts: Effect of Danube River dam on Black Sea biogeochemistry and ecosystem structure
• Abstracts: Effectiveness of Protected Areas in Mitigating Fire within Their Boundaries: Case Study of Chiapas, Mexico. Modeling Prescribed Surface-Fire Regimes for Pinus strobus Conservation
• Abstracts: Recent advances in cys-loop receptor structure and function. Music, the food of neuroscience?
• Abstracts: Impact of regional climate change on human health. Climate proofing the Netherlands. Policy needs robust climate science
• Abstracts: The world's oldest spears. Life on the Costa del Cromer. An Asian perspective on early human dispersal from Africa

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.