|Title||Chronometric and Relative Age Determination of Petroglyphs in the Western United States|
|Created by:||Ronald I. Dorn, David S. Whitley|
|Description:||New rock varnish technique of cation-ratio dating determines that petroglyphs in California are older than previously thought.|
|Citation:||Annals of the Association of American Geographers, Vol. 74, No. 2, June 1984, pp. 308-322.
|Categories:||Indigenous Studies Portal > Arts > Ancient Arts
Indigenous Studies Portal > History > Archaeology > Rock Art
Indigenous Studies Portal > Science & Technology