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Continental boundaries of the Jalisco block and their influence in the Pliocene-Quaternary kinematics of western Mexico

1996; Geological Society of America; Volume: 24; Issue: 10 Linguagem: Inglês

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

1943-2682

José Rosas‐Elguera, Luca Ferrari, Víctor Hugo Garduño‐Monroy, J. Urrutia‐Fucugauchi,

Geochemistry and Geologic Mapping

Research Article| October 01, 1996 Continental boundaries of the Jalisco block and their influence in the Pliocene-Quaternary kinematics of western Mexico José Rosas-Elguera; José Rosas-Elguera 1Centro de Ciencias de la Tierra, Universidad de Guadalajara, Calzada Olímpica y Blvd. Marcelino García Barragán, 44840 Guadalajara, Jal., Mexico Search for other works by this author on: GSW Google Scholar Luca Ferrari; Luca Ferrari 2Estación Regional del Centro, Instituto de Geología, Universidad Nacional Autónoma de Mexico, Apdo Postal 376, Guanajuato, Gto., 3600 Mexico Search for other works by this author on: GSW Google Scholar Victor Hugo Garduño-Monroy; Victor Hugo Garduño-Monroy 3Departamento de Geologia, Instituto de Investigaciones Metalurgicas, Universidad Michoacana de San Nicolas de Hidalgo, Cd. Universitaria, Morelia, Mich., Mexico Search for other works by this author on: GSW Google Scholar Jaime Urrutia-Fucugauchi Jaime Urrutia-Fucugauchi 4Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Del. Coyoacán, D.F. 04510 Mexico Search for other works by this author on: GSW Google Scholar Author and Article Information José Rosas-Elguera 1Centro de Ciencias de la Tierra, Universidad de Guadalajara, Calzada Olímpica y Blvd. Marcelino García Barragán, 44840 Guadalajara, Jal., Mexico Luca Ferrari 2Estación Regional del Centro, Instituto de Geología, Universidad Nacional Autónoma de Mexico, Apdo Postal 376, Guanajuato, Gto., 3600 Mexico Victor Hugo Garduño-Monroy 3Departamento de Geologia, Instituto de Investigaciones Metalurgicas, Universidad Michoacana de San Nicolas de Hidalgo, Cd. Universitaria, Morelia, Mich., Mexico Jaime Urrutia-Fucugauchi 4Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Del. Coyoacán, D.F. 04510 Mexico Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (10): 921–924. 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 Email Permissions Search Site Citation José Rosas-Elguera, Luca Ferrari, Victor Hugo Garduño-Monroy, Jaime Urrutia-Fucugauchi; Continental boundaries of the Jalisco block and their influence in the Pliocene-Quaternary kinematics of western Mexico. Geology 1996;; 24 (10): 921–924. 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 Extensional faulting observed in southwestern Mexico has been related to the incipient rifting of the Jalisco block from the Mexican mainland since the Pliocene. On the basis of new structural and geophysical data, we propose that (1) the continental boundaries of the Jalisco block are ancient structures reactivated since the Pliocene at a low (<1 mm/yr) rate of deformation, and (2) Pliocene-Quaternary extensional faulting at the edges of Jalisco block is a basement-controlled intraplate deformation related to plate boundary forces rather than to active continental rifting.The Jalisco block boundaries first developed in response to the uplift of the Puerto Vallarta batholith in pre-Neogene time and underwent a complex contractile deformation before the Pliocene. During Pliocene-Quaternary times north-northeast extension reactivated the northern boundary, forming the Tepic-Zacoalco rift, whereas east-southeast extension formed the northern Colima rift. South of the Colima volcano, active extension is found only west of the so-called southern Colima rift and partly reactivates old northeast-trending basement faults. The parallelism between the subducted Rivera-Cocos plate boundary zone and the eastern neotectonic boundary of the Jalisco block supports east-southeastward motion of the southern Mexican blocks induced by the differential motion and oblique subduction of the Cocos and Rivera plates. On the other hand, we envisage Pliocene-Quaternary extension along the northern boundary as an upper-plate response to the low convergence rate and the steep subduction angle of the Rivera plate. 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.