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Radiometric and kinematic evidence for Middle Jurassic strike-slip faulting in southern Mexico related to the opening of the Gulf of Mexico

1996; Geological Society of America; Volume: 24; Issue: 5 Linguagem: Inglês

10.1130/0091-7613(1996)024 2.3.co;2

1943-2682

Susana A. Alaniz-Álvarez, P van der Heyden, Ángel F. Nieto-Samaniego, Fernando Ortega‐Gutiérrez,

Seismic Waves and Analysis

Research Article| May 01, 1996 Radiometric and kinematic evidence for Middle Jurassic strike-slip faulting in southern Mexico related to the opening of the Gulf of Mexico Susana A. Alaniz-Alvarez; Susana A. Alaniz-Alvarez 1Estación Regional del Centro, Instituto de Geología, Universidad Nacional Autónoma de México, Apdo. Postal 376, Guanajuato, Gto. C.P. 36000, México Search for other works by this author on: GSW Google Scholar Peter van der Heyden; Peter van der Heyden 2Geological Survey of Canada, 100 West Pender Street, Vancouver, B.C. V6B 1R8, Canada Search for other works by this author on: GSW Google Scholar Angel F. Nieto Samaniego; Angel F. Nieto Samaniego 1Estación Regional del Centro, Instituto de Geología, Universidad Nacional Autónoma de México, Apdo. Postal 376, Guanajuato, Gto. C.P. 36000, México Search for other works by this author on: GSW Google Scholar Fernando Ortega-Gutiérrez Fernando Ortega-Gutiérrez 3Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D.F., Delegación Coyoacán 04510, México Search for other works by this author on: GSW Google Scholar Geology (1996) 24 (5): 443–446. https://doi.org/10.1130/0091-7613(1996)024 2.3.CO;2 Article history first online: 02 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 Susana A. Alaniz-Alvarez, Peter van der Heyden, Angel F. Nieto Samaniego, Fernando Ortega-Gutiérrez; Radiometric and kinematic evidence for Middle Jurassic strike-slip faulting in southern Mexico related to the opening of the Gulf of Mexico. Geology 1996;; 24 (5): 443–446. doi: https://doi.org/10.1130/0091-7613(1996)024 2.3.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 One of the least-known aspects of the evolution of the Gulf of Mexico is the nature and location of shear zones along which the relevant continental fragments were displaced. The Sierra de Juárez mylonitic complex, located in southern Mexico, is a polyorogenic north-northwest–trending structure. Here we report U-Pb mylonitization dates of 165 ± 20 Ma for igneous zircon from the syntectonic San Felipe granite, and an integrated 40Ar/39Ar age of 169.3 ± 1.7 Ma from synkinematic muscovite, both of which indicate a Middle Jurassic age for the strike-slip event along the Sierra de Juárez mylonitic complex. This event therefore occurred during the opening of the Gulf of Mexico, and we propose that the shear zone was kinematically related to the southeast displacement of the Yucatan block. 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.