Skip to Main Content
GeoScienceWorld
Skip Nav Destination
Crustal Cross Sections from the Western North American Cordillera and Elsewhere: Implications for Tectonic and Petrologic Processes
GSA Special Papers

Crustal Cross Sections from the Western North American Cordillera and Elsewhere: Implications for Tectonic and Petrologic Processes

Author(s)
Robert B. Miller
Robert B. Miller
San José State University, San José, California, USA
Search for other works by this author on:
GSW
Google Scholar
Arthur W. Snoke
Arthur W. Snoke
University of Wyoming, Laramie, Wyoming, USA
Search for other works by this author on:
GSW
Google Scholar
Geological Society of America
Volume
456
DOI:
https://doi.org/10.1130/SPE456
Copyright:
© 2009 Geological Society of America
Attribution:You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). Noncommercial - you may not use this work for commercial purpose. No Derivative works - You may not alter, transform, or build upon this work. Sharing - Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science.
ISBN print:
9780813724560
Publication date:
January 01, 2009
Book Chapter

Perspectives on the architecture of continental crust from integrated field studies of exposed isobaric sections

Author(s)
Michael L. Williams
Michael L. Williams
Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
Search for other works by this author on:
GSW
Google Scholar
;
Karl E. Karlstrom
Karl E. Karlstrom
Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA
Search for other works by this author on:
GSW
Google Scholar
;
Gregory Dumond
Gregory Dumond
Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
Search for other works by this author on:
GSW
Google Scholar
;
Kevin H. Mahan
Kevin H. Mahan
Division of Geological & Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA
Search for other works by this author on:
GSW
Google Scholar
Doi:
https://doi.org/10.1130/2009.2456(08)
  • Published:
    January 01, 2009

Depth-dependent variations in the structure and composition of continental crust can be studied via integrated investigations of isobaric terranes. In this contribution, we summarize three isobaric terranes in Archean to Proterozoic crust. In western Canada, 35–45-km-deep lower crust is exposed over an area of more than 20,000 km2. The Upper Granite Gorge of Grand Canyon, Arizona, provides a transect of 20–25-km-deep middle crust. The Proterozoic basement of central Arizona represents an isobaric exposure of 10–15-km-deep middle crust. Isobaric terranes yield a conceptual image of continental crust that can be compared to seismic images, xenolith data, and drill core...

You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
  • Copyright © 2023
GeoScienceWorld
  • 1750 Tysons Boulevard, Suite 1500
  • McLean, VA 22102
  • Telephone: 1-800-341-1851
  • Copyright © 2023 GeoScienceWorld
Close Modal
This Feature Is Available To Subscribers Only

or Create an Account

Close Modal
Close Modal
This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy.
Accept