International Federation of Digital Seismograph Networks

XP (2008-2009): Colorado Rockies Experiment and Seismic Transect

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FDSN Network Information

FDSN code XP (2008-2009) Operated by New Mexico Tech
Network name Colorado Rockies Experiment and Seismic Transect (CREST) Deployment region United States
Start date Jan. 1, 2008 End date Dec. 31, 2009
Short description

Three independent North American scale surface wave images find that the mantle beneath the Colorado Rocky Mountains has a velocity of <4.2 km/s, consistant with the asthenospheric temperature that is at or near the dry solidus of peridotite. At a finer scale body wave tomorgraphic images find that the region is underlain by an enigmatic low velocity mantle that we refer to as the Aspen Anomaly. This project will provde near 3D teleseismic images of the geometry of the mantl anomaly in central Colorado and will investigate time space correlation between Cenozoic rock uplift and denudation patterns, magmatism, and the modern day mantly anomaly using a host of intergrated geological and geophysical techniques. We seek to understand when and why changes in lithospheric buoyancy occurred in the Rockies and how these changes have been expressed in terms of Cenozoic magmatism, and the topographic evolution of the highest elevation region of the Rocky Mountains.

Citation Information

Digital Object Identifier (DOI) https://doi.org/10.7914/SN/XP_2008
Citation
Ken Dueker, Rick Aster (2008): Colorado Rockies Experiment and Seismic Transect. International Federation of Digital Seismograph Networks. Other/Seismic Network. 10.7914/SN/XP_2008

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