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Seismic evidence of mylonite reflectivity and deep structure in the Kettle dome metamorphic core complex, Washington

1985; Geological Society of America; Volume: 13; Issue: 8 Linguagem: Inglês

10.1130/0091-7613(1985)13 2.0.co;2

1943-2682

Charles A. Hurich, Scott B. Smithson, David M. Fountain, Michael C. Humphreys,

Seismic Imaging and Inversion Techniques

Research Article| August 01, 1985 Seismic evidence of mylonite reflectivity and deep structure in the Kettle dome metamorphic core complex, Washington Charles A. Hurich; Charles A. Hurich 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Search for other works by this author on: GSW Google Scholar Scott B. Smithson; Scott B. Smithson 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Search for other works by this author on: GSW Google Scholar David M. Fountain; David M. Fountain 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Search for other works by this author on: GSW Google Scholar Michael C. Humphreys Michael C. Humphreys 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Search for other works by this author on: GSW Google Scholar Author and Article Information Charles A. Hurich 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Scott B. Smithson 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 David M. Fountain 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Michael C. Humphreys 1Department of Geology and Geophysics, Program for Crustal Studies, University of Wyoming, Laramie, Wyoming 82071 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1985) 13 (8): 577–580. https://doi.org/10.1130/0091-7613(1985)13 2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Charles A. Hurich, Scott B. Smithson, David M. Fountain, Michael C. Humphreys; Seismic evidence of mylonite reflectivity and deep structure in the Kettle dome metamorphic core complex, Washington. Geology 1985;; 13 (8): 577–580. doi: https://doi.org/10.1130/0091-7613(1985)13 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The first direct test of the seismic reflectivity of mylonites is provided by a seismic reflection profile over a mylonite zone exposed in the Kettle dome metamorphic core complex, northeastern Washington. The mylonite zone developed at mid-crustal levels and has undergone a minimum of retrogression and cataclasis during uplift. Downdip projection of the exposed mylonite zone into the seismic profile indicates that the compositionally layered mylonite zone is reflective and traceable to at least 5-km depth as a complex zone of multicyclic reflections. The seismic data also show that the crust beneath the Kettle dome is characterized by abundant, strongly reflective, moderately dipping layers down to at least 18 km. These layers can be interpreted in terms of compressional or extensional orogenic events or a combination of both. Models for the structure and genesis of metamorphic core complexes must take these data into account. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.