- Title Pages
- Series Preface
2Stratigraphy of the Adu-Asa Formation
3Volcanic Record of the Adu-Asa Formation
19Biochronology, Faunal Turnover, and Evolution
- (p.92) (p.93) 4 Geochronology
- Ardipithecus kadabba
Paul R. Renne
Leah E. Morgan
William K. Hart
- University of California Press
40Ar/39Ar dating has been applied extensively to volcanic units of late Miocene to Pleistocene age in the Middle Awash study area, and is the most important dating method applied to these deposits. This chapter discusses all available 40Ar/39Ar data for the Adu-Asa Formation, including some data not previously reported, plus some previously unpublished results from the nearby Central Awash Complex (CAC). The methods and facilities employed for 40Ar/39Ar dating is divided into two different approaches: incremental heating and single-crystal total fusion.
California Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
If you think you should have access to this title, please contact your librarian.
To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.