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Volcanism and tectonism in western Mexico: A contrast of style and substance

1992; Geological Society of America; Volume: 20; Issue: 7 Linguagem: Inglês

10.1130/0091-7613(1992)020 2.3.co;2

1943-2682

Paul A. W. Wallace, I. S. E. Carmichael, K. Righter, Tim A. Becker,

Geological and Geochemical Analysis

Research Article| July 01, 1992 Volcanism and tectonism in western Mexico: A contrast of style and substance Paul Wallace; Paul Wallace 1Department of Geology and Geophysics, University of California, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar Ian S.E. Carmichael; Ian S.E. Carmichael 1Department of Geology and Geophysics, University of California, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar Kevin Righter; Kevin Righter 1Department of Geology and Geophysics, University of California, Berkeley, California 94720 Search for other works by this author on: GSW Google Scholar Tim A. Becker Tim A. Becker 2Institute of Human Origins, Geochronology Center, 2453 Ridge Road, Berkeley, California 94709 Search for other works by this author on: GSW Google Scholar Geology (1992) 20 (7): 625–628. https://doi.org/10.1130/0091-7613(1992)020 2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Paul Wallace, Ian S.E. Carmichael, Kevin Righter, Tim A. Becker; Volcanism and tectonism in western Mexico: A contrast of style and substance. Geology 1992;; 20 (7): 625–628. doi: https://doi.org/10.1130/0091-7613(1992)020 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 The Jalisco block of southwestern Mexico records the initial stages of continental rifting superimposed on a convergent continental margin. Pliocene- Quaternary eruptions in north-northwest-trending graben systems within the block produced extraordinarily diverse lava types, including minette, leucitite, absarokite, and andesite. Interspersed with these are several basaltic shield volcanoes that have compositional similarities to lavas from oceanic islands. Evidence of Miocene Basin and Range extension, which is seen around much of the Gulf of California, is found only along the northern margin of the Jalisco block. Large volumes of alkali basalt were also erupted during the late Miocene at several locations along this northern margin. We propose that Pliocene- Quaternary extension and associated volcanism within the confines of the Jalisco block are consequences of complex plate-boundary reorganizations that are causing the block to rift away from the Mexican mainland 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.