Styles of Deformation Observed on Deep Seismic Reflection Profiles of the Appalachian-Caledonide System

  1. Robert F. Mereu,
  2. Stephan Mueller and
  3. David M. Fountain
  1. J. Hall1,
  2. G. Quinlan1,
  3. J. Wright1,
  4. C. Keen2 and
  5. F. Marillier2

Published Online: 9 APR 2013

DOI: 10.1029/GM051p0033

Properties and Processes of Earth's Lower Crust

Properties and Processes of Earth's Lower Crust

How to Cite

Hall, J., Quinlan, G., Wright, J., Keen, C. and Marillier, F. (1989) Styles of Deformation Observed on Deep Seismic Reflection Profiles of the Appalachian-Caledonide System, in Properties and Processes of Earth's Lower Crust (eds R. F. Mereu, S. Mueller and D. M. Fountain), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM051p0033

Author Information

  1. 1

    Centre for Earth Resources Research, Department of Earth Sciences, Memorial University of Newfoundland, St. John'S, Newfoundland, Canada A1b 3X7

  2. 2

    Atlantic Geoscience Centre, Geological Survey of Canada, Bedford Institute of Oceanography, Dartmouth, Nova Scotia, Canada B2y 4A2

Publication History

  1. Published Online: 9 APR 2013
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780875904566

Online ISBN: 9781118666388

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Keywords:

  • Earth—Crust—Congresses;
  • Geophysics—Congresses

Summary

Images of the deep crust and upper mantle from BIRPS, Lithoprobe and AGC seismic reflection profiles show a variety of discontinuities interpreted as faults or shear zones. Much of the observed diversity can be attributed to variation in depth of detachment and the position of the structure within the mobile belt. Reactivation of old structures may also be involved, and in places may occur well into the continental ‘foreland' marginal to the mobile belt.