Article

 

Regional conductivity structure of Cascadia : preliminary results form 3D inversion of USArray transportable array magnetotelluric data Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/0g354m09v

Descriptions

Attribute NameValues
Creator
Abstract
  • In conjunction with the USArray component of EarthScope, long period magnetotelluric (MT) data are being acquired in a series of arrays across the continental US. Initial deployments in 2006 and 2007 acquired data (10– 10,000 s) at 110 sites covering the US Pacific Northwest, distributed with the same nominal spacing as the USArray seismic transportable array (~75 km). The most striking and robust features revealed by initial three-dimensional inversion of this dataset are extensive areas of high conductivity in the lower crust beneath all of southeastern Oregon, and beneath the Cascade Mountains, contrasting with very resistive crust in Siletzia and the Columbia Embayment. Significant variations in upper mantle conductivity are also revealed by the inversions, with the most conductive mantle beneath the Washington backarc, and the most resistive corresponding to subducting oceanic mantle.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Patro, P. K., and G. D. Egbert (2008), Regional conductivity structure of Cascadia: Preliminary results from 3D inversion of USArray transportable array magnetotelluric data, Geophys. Res. Lett., 35, L20311, 2008.
Journal Title
Journal Volume
  • 35
Journal Issue/Number
  • 20
Academic Affiliation
Rights Statement
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Mary Phan (mpscanner@gmail.com) on 2010-04-27T21:58:52Z No. of bitstreams: 1 Patro and Egbert GRL 2008.pdf: 454897 bytes, checksum: fdc9598aa87e8a680a19595b42bd3584 (MD5)
  • description.provenance : Made available in DSpace on 2010-04-27T22:37:58Z (GMT). No. of bitstreams: 1 Patro and Egbert GRL 2008.pdf: 454897 bytes, checksum: fdc9598aa87e8a680a19595b42bd3584 (MD5) Previous issue date: 2008
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-04-27T22:37:58Z (GMT) No. of bitstreams: 1 Patro and Egbert GRL 2008.pdf: 454897 bytes, checksum: fdc9598aa87e8a680a19595b42bd3584 (MD5)

Relationships

Parents:

This work has no parents.

Items