Luminescence dating of young volcanic activity in China

Quartz grains from volcanic deposits younger than 2000 years were dated by the thermoluminescence (TL) method. The equivalent doses were determined with modified pre-dose technique using 110°C TL peak. TL ages of quartz heated after crystallization are in agreement with historical records and C-14 age of burnt tree. Age reversing is observed for the crystallized quartz with and without heating. This was explained with an initial dose due to the distribution of hole charges. © 2000 Elsevier Science Ltd.link_to_subscribed_fulltex