Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 37, Issue -, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2010GL043374
Keywords
-
Categories
Funding
- Department of Energy
- Nevada System of Higher Education [DE-FC-04RW12232]
- NSF [EAR-0911754, EAR-0843096]
- Directorate For Geosciences
- Division Of Earth Sciences [0911754] Funding Source: National Science Foundation
Ask authors/readers for more resources
We analyze data from continuous GPS stations in the southwestern United States and present the first observations of a systematic motion of the Colorado Plateau region. Relative to a North America-fixed reference frame, westward velocities increase rapidly across the Wasatch fault system, which comprises the plateau's northwestern margin, but increase more gradually between the Great Plains and the Mojave Desert province. We detect no significant extension across most of the Rio Grande Rift, but extension could be as high as similar to 0.5 mm yr(-1) along its southernmost portion. We suggest that the motion between the plateau and stable continent may partly be accommodated instead across the Jemez Lineament. Only when we consider GPS velocities within the plateau's center, do the data support a rigid body rotation of 0.103 degrees Ma(-1) around a pole in the northern Rocky Mountains. We conclude that active extension has encroached into the plateau from both the east and west. Citation: Kreemer, C., G. Blewitt, and R. A. Bennett (2010), Present-day motion and deformation of the Colorado Plateau, Geophys. Res. Lett., 37, L10311, doi:10.1029/2010GL043374.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available