Crustal structure of western Nevada from COCORP deep seismic-reflection data

Abstract

Research Article| March 01, 1987 Crustal structure of western Nevada from COCORP deep seismic-reflection data T. A. HAUGE; T. A. HAUGE 1Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar R. W. ALLMENDINGER; R. W. ALLMENDINGER 2Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar C. CARUSO; C. CARUSO 2Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar E. C. HAUSER; E. C. HAUSER 3Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar S. L. KLEMPERER; S. L. KLEMPERER 4Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar S. OPDYKE; S. OPDYKE 4Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar C. J. POTTER; C. J. POTTER 5Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar W. SANFORD; W. SANFORD 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar L. BROWN; L. BROWN 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar S. KAUFMAN; S. KAUFMAN 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar J. OLIVER J. OLIVER 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar Author and Article Information T. A. HAUGE 1Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 R. W. ALLMENDINGER 2Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 C. CARUSO 2Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 E. C. HAUSER 3Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 S. L. KLEMPERER 4Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 S. OPDYKE 4Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 C. J. POTTER 5Institute for the Study of the Continents, Cornell University, Ithaca, New York 14853 W. SANFORD 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 L. BROWN 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 S. KAUFMAN 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 J. OLIVER 6Institute for the Study of the Continents and Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1987) 98 (3): 320–329. https://doi.org/10.1130/0016-7606(1987)98<320:CSOWNF>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 Email Permissions Search Site Citation T. A. HAUGE, R. W. ALLMENDINGER, C. CARUSO, E. C. HAUSER, S. L. KLEMPERER, S. OPDYKE, C. J. POTTER, W. SANFORD, L. BROWN, S. KAUFMAN, J. OLIVER; Crustal structure of western Nevada from COCORP deep seismic-reflection data. GSA Bulletin 1987;; 98 (3): 320–329. doi: https://doi.org/10.1130/0016-7606(1987)98<320:CSOWNF>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 SocietyGSA Bulletin Search Advanced Search Abstract The western Nevada segments of the COCORP 40°N deep seismic-reflection survey of the North American Cordillera reveal the geometry of structures of Cenozoic and possibly earlier ages to travel-times of > 10 s, corresponding to depths of >30 km. The most striking feature of the data is a band of prominent reflections, typically at traveltimes of 9.5 to 10.5 s, that are present discontinuously across the entire data set. Few reflections are observed from beneath the base of this reflective zone, which is interpreted as the crust-mantle transition. This "reflection Mono" is inferred to be continuous across the survey area, varying gradually in depth but without resolvable offsets. It appears to have taken its present form or position during basin-range crustal extension. The middle to lower crust in much of the survey area is characterized by discontinuous reflections that are typically subhorizontal and locally dip gently west. These reflections may represent intrusions or shear zones related to basin-range or pre-basin-range extension, but some are likely to be inherited from earlier compressional deformation. Reflections from the upper crust are interpreted as images of basin-fill strata, basin-range normal faults, and Mesozoic and Paleozoic thrusts related to back-arc thrusting and accretion of oceanic and arc-related rocks. This content is PDF only. Please click on the PDF icon to access. 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