Cation-Ratio and Accelerator Radiocarbon Dating of Rock Varnish on Mojave Artifacts and Landforms
- 21 February 1986
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 231 (4740), 830-833
- https://doi.org/10.1126/science.231.4740.830
Abstract
The first accelerator radiocarbon dates of rock varnishes are reported along with potassium/argon ages of lava flows and conventional radiocarbon dates of pluvial lake shorelines, in an empirical calibration of rock varnish K+ + Ca2+/Ti4+ ratios with age in the Mojave Desert, eastern California. This calibration was used to determine the cation-ratio dates of 167 artifacts. Although cation-ratio dating is an experimental method, some dates suggest human occupation of the Mojave Desert in the late Pleistocene.Keywords
This publication has 24 references indexed in Scilit:
- Stable Carbon Isotope Ratios of Rock Varnish Organic Matter: A New Paleoenvironmental IndicatorScience, 1985
- Accelerator mass spectrometry radiocarbon ages of amino acid extracts from Californian palaeoindian skeletonsNature, 1984
- Holocene age of the Yuha burial: direct radiocarbon determinations by accelerator mass spectrometryNature, 1984
- Cation-Ratio Dating: A New Rock Varnish Age-Determination TechniqueQuaternary Research, 1983
- Rock varnishProgress in Physical Geography: Earth and Environment, 1982
- Desert Varnish of the Sonoran Desert: Optical and Electron Probe MicroanalysisThe Journal of Geology, 1978
- Mantle 40Ar/36Ar trapped in Cretaceous deep-sea basaltsNature, 1978
- Desert Varnish: The Importance of Clay MineralsScience, 1977
- Aboriginal Human Ecology in Owens Valley: Prehistoric Change in the Great BasinAmerican Antiquity, 1977
- The Calico Site: Artifacts or Geofacts?Science, 1973