U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

General Information

  • Title: Origin of some alkali feldspar phenocrysts and their bearing on petrogenesis
  • Author(s): Hibbard, M.J.
  • Publishing Organization: American Journal of Science
  • Series and Number: American Journal of Science v. 263, no. 3 [p. 245-261]
  • Publication Date: 1965
  • Map Scale: 1:380,160
  • Cross Section: None
  • Find more maps in this area with mapView
  • Corrections to this entry?
* See base map disclaimer below

Map Preview

(Click image to enlarge)

Downloads from the NGMDB

Poor quality image? Let us know

* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.