Late Pleistocene Eruptive History of Nevado de Toluca Volcano, Central Mexico

Abstract

Research Article| June 01, 1974 Late Pleistocene Eruptive History of Nevado de Toluca Volcano, Central Mexico K. BLOOMFIELD; K. BLOOMFIELD 1Institute of Geological Sciences, Overseas Division, 5 Princes Gate, London SW7 1QN, England Search for other works by this author on: GSW Google Scholar S. VALASTRO, JR S. VALASTRO, JR 2Radiocarbon Laboratory, Balcones Research Center, University of Texas at Austin, Austin, Texas 78757 Search for other works by this author on: GSW Google Scholar GSA Bulletin (1974) 85 (6): 901–906. https://doi.org/10.1130/0016-7606(1974)85<901:LPEHON>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 K. BLOOMFIELD, S. VALASTRO; Late Pleistocene Eruptive History of Nevado de Toluca Volcano, Central Mexico. GSA Bulletin 1974;; 85 (6): 901–906. doi: https://doi.org/10.1130/0016-7606(1974)85<901:LPEHON>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 Fieldwork and radiocarbon dating provide evidence of two major explosive eruptions and an intervening minor eruption. The Nevado, a central stratovolcano built up in late Pleistocene time, was eviscerated by a violent Vulcanian-type eruption about 25,000 yr B.P., which deposited thick, cold, lithic lahars around its flanks. After a period of widespread soil formation, dated at 24,500 yr B.P., a relatively minor Vesuvian-type eruption produced small amounts of pumice that fell only on the eastern and northeastern slopes of the volcano. A major Plinian-type eruption took place at 11,600 yr B.P., directed mainly east-northeast, which spread thick dacitic pumice over an area of at least 1,700 km2. This eruption probably produced the "tripartite" pumice, which forms a marker for the stratigraphy of early man in the adjoining Valley of Mexico. The vent orifice was subsequently plugged by a dome of vesicular dacite. 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.