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To understand the past environmental change using geological archives (e.g., core of sediments or ice), establishing the reliable chronology is one of the most important key issues.Luminescence dating is a powerful method due to its applicability to quartz, which is common mineral found in various kinds of environment, and the datable age range being from present to 100 cal ka.A core of ~18 m in length were obtained in 2008 from Lake Hovsgol, Mongolia (HDP-08) for the purpose of reconstructing the climate-forcing environmental fluctuation in the central continent with high altitude.In this study, optically stimulated luminescence (OSL) from quarts and red thermoluminescence (RTL) from carbonate were measured to estimate depositional ages the sediments.The 16 samples were collected every 10 cm from the core using squire stainless tubes (1 cm × 1 cm) with the length of 4 cm.