Index to potassium-argon ages of Cenozoic volcanic rocks of Oregon

Walker, George Walton, 1921-

Publication Details Click to collapse Cite/Export

  • Creator by George W. Walker, G. Brent Dalrymple and Marvin A. Lanphere, 1974 ; Department of the Interior, United States Geological Survey
  • Format Maps, Atlases
  • Contributors
  • Publication Washington, D.C. : U.S. Geological Survey, 1974.
  • Series
  • Physical Details
    • 1 map ; 51 x 67 cm + data sheet (92 x 71 cm)
  • OCLC ocn150510327
  • Cartographic Data
    Scale [1:1,000,000], Lambert conformal conic projection
    (W 124°30ʹ--W 117°/N 46°15ʹ--N 42°).

Notes

  • Relief shown by spot heights.
  • "Base by U.S. Geological Survey, 1966"--Lower left margin.
  • Data sheet (sheet 2) is a list of formations by county, keyed to map.
  • Includes text and bibliographical references.
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