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.
Original language | English (US) |
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Pages (from-to) | 830-833 |
Number of pages | 4 |
Journal | Science |
Volume | 231 |
Issue number | 4740 |
DOIs | |
State | Published - 1986 |
ASJC Scopus subject areas
- General