| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4725041 | Quaternary Geochronology | 2012 | 4 Pages |
Archeological research over the past several years has started to provide evidence relevant to understanding both the timing of and processes for human colonization of the high Qinghai-Tibetan Plateau. Much of this research has been in the Qinghai Lake area and the Qaidam Basin in the northeastern Qinghai-Tibetan Plateau. However, chronological data are still limited. Recently, a hearth was discovered in the Jiangxigou site in the south of the Qinghai Lake area, which was likely used by prehistoric hunters. The site is in the mouth of a canyon approximately 4.5 km from Qinghai Lake. Previous ages in this site are based on 14C dating only. The current study provides additional OSL dates for the hearth. The ages of four OSL samples bracketing the hearth range from 12.9 ± 0.9 to 14.4 ± 1.0 ka, but standard deviations overlap extensively and they likely represent the same age. The OSL ages show that by about 14.3 ± 1.0 ka prehistoric peoples were living in the Qinghai Lake area.
► Quartz OSL dating was used to determine the age of a hearth. ► Quartz OSL ages range from 12.9 ± 0.9 to 14.4 ± 1.0 ka. ► The OSL ages are in agreement with previous 14C ages. ► The OSL ages show that at ca.14.3 ± 1.0 ka prehistoric people were living in Qinghai Lake.
