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Age and Chemistry of Tertiary Volcanic Rocks in North-Central Arizona and Relation of the Rocks to the Colorado Plateaus
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1971
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VolcanologyEngineeringSedimentary GeologyEarth ScienceRegional GeologyNorth-central ArizonaGeological DataGeochronologyTertiary Volcanic RocksGeological EngineeringGeographyGeologyGsa Bulletin 1971Gsa BulletinRock PropertiesTectonicsColorado PlateausStructural GeologyExploration GeologyEconomic GeologyEarth SciencesGeochemistryPetrology
Research Article| October 01, 1971 Age and Chemistry of Tertiary Volcanic Rocks in North-Central Arizona and Relation of the Rocks to the Colorado Plateaus EDWIN H MCKEE; EDWIN H MCKEE U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar CHARLES A ANDERSON CHARLES A ANDERSON U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information EDWIN H MCKEE U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 CHARLES A ANDERSON U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 Publisher: Geological Society of America Received: 28 Dec 1970 Revision Received: 21 May 1971 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1971, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1971) 82 (10): 2767–2782. https://doi.org/10.1130/0016-7606(1971)82[2767:AACOTV]2.0.CO;2 Article history Received: 28 Dec 1970 Revision Received: 21 May 1971 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation EDWIN H MCKEE, CHARLES A ANDERSON; Age and Chemistry of Tertiary Volcanic Rocks in North-Central Arizona and Relation of the Rocks to the Colorado Plateaus. GSA Bulletin 1971;; 82 (10): 2767–2782. doi: https://doi.org/10.1130/0016-7606(1971)82[2767:AACOTV]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 During late Miocene (14.8 m.y.) to early Pliocene (10.1 m.y.) time, local latite and widespread basaltic flows accumulated with associated continental sedimentary deposits in north-central Arizona. Some of these rocks were displaced and tilted by normal faults, and new drainage, now occupied in part by basalt flows of late Pliocene age (average 5 m.y., maximum of 6 m.y.), was established at the southern margin of the Colorado Plateaus. The time of faulting and uplift of the Colorado Plateaus in this region is thus bracketed between about 10.1 and 6 m.y. ago.Five analyzed basalts fall within the tholeiitic basalt field of the alkali-silica diagram and twenty are in the alkalic basalt field; in general, they are similar to other alkali-olivine basalts from the western United States. 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.