Holocene moist period recorded by the chronostratigraphy of a lake sedimentary sequence from Lake Tangra Yumco on the south Tibetan Plateau

► We compared the OSL and 14C chronology of a lake profile on the Tibetan Plateau. ► The 14C ages are ca. 4-5 ka older than the OSL ages. ► The age overestimate of 14C dating is due to the reservoir effect in the study area. ► The chronostratigraphy of this lake profile indicates a large lake during 7.6-2.3 ka. ► This study suggests a wet mid-Holocene in the study area.