Styles and scales of deformation associated with the western margin of the Trans-Hudson Orogen, Canada imaged by coincident regional, high-resolution 2D and 3D seismic surveys

Z. Hajnal, István Györfi, Erno Takács, D. White, I. Annesley

Research output: Contribution to journalArticle

Abstract

Seismic exploration of orogenic belts has significantly improved our understanding of their geodynamic evolution and structural architecture. A complete orogenic cycle includes two distinct phases: 1) orogenic growth related to convergent plate boundaries that involve major lithospheric-scale compressive deformation and tectonic burial and 2) late-to-post orogenic collapse, achieved by extension and/or erosion exhuming the root of the orogens. The deeply exhumed Paleoproterozoic (1.8Ga) Trans- Hudson Orogen (THO) went through the entire process of orogenic growth and collapse, thus preserves many features observed remotely within modern orogens. Seismic sections from the western margin of the THO (LITHOPROBE, COCORP, EXTECH-IV) are of good quality and image the orogen on different scales.

Original languageEnglish
Pages (from-to)521-524
Number of pages4
JournalSEG Technical Program Expanded Abstracts
Volume23
Issue number1
DOIs
Publication statusPublished - Jan 1 2004

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seismic survey
Canada
margins
Lithoprobe
Geodynamics
high resolution
geodynamics
Tectonics
plate boundary
orogenic belt
erosion
Erosion
tectonics
cycles
preserve

ASJC Scopus subject areas

  • Geophysics
  • Geotechnical Engineering and Engineering Geology

Cite this

Styles and scales of deformation associated with the western margin of the Trans-Hudson Orogen, Canada imaged by coincident regional, high-resolution 2D and 3D seismic surveys. / Hajnal, Z.; Györfi, István; Takács, Erno; White, D.; Annesley, I.

In: SEG Technical Program Expanded Abstracts, Vol. 23, No. 1, 01.01.2004, p. 521-524.

Research output: Contribution to journalArticle

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