Crustal‐scale pure shear foreland deformation of western Argentina

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/dv140016p

Descriptions

Attribute Name	Values
Creator	Meigs, Andrew J. Nábělek, John
Abstract	New analyses of teleseismic body waves from moderate earthquakes in western Argentina demonstrate that active shortening of the Andean foreland occurs on reverse faults extending to 40–50 km depth. Existing crustal‐scale models of foreland deformation invoke thin‐skinned fault geometries, which root into an east‐dipping mid‐crustal décollement. Whereas thin‐skinned thrust sheets dominate shallow‐crustal structure, seismological and geological data illustrate that planar reverse faults and pure‐shear deformation involving more than 75% of the crust characterizes this thick‐skinned structural province.
Resource Type	Article
DOI	https://doi.org/10.1029/2010GL043220
Date Available	2011-09-23T21:47:35+00:00
Date Issued	2010-06-11
Citation	Meigs, A. J., and J. Nabelek (2010), Crustal‐scale pure shear foreland deformation of western Argentina, Geophys. Res. Lett., 37, L11304, doi:10.1029/2010GL043220.
Journal Title	Geophysical Research Letters
Journal Volume	37
Journal Issue/Number	11
Academic Affiliation	Geosciences College of Oceanic and Atmospheric Sciences
Urheberrechts-Erklärung	In Copyright
Funding Statement (additional comments about funding)	We acknowledge support from NSF‐EARgrants 0409443 and 0838538.
Publisher	American Geophysical Union
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/23540