STUDY ON ERAS OF DATONG VOLCANIC ACTIVITIES BY THERMOLUMINESCENCE DATING

• 作 者: 李虎侯 孙建中
• 机 构: Institute of Archaeology, Chinese Academy of Social Sciences, Beijing ,Institute of Geology, State B
• 出 处: Science in China,Ser.B
• 发表日期: 1984年10期
• 关键词: volcanic dating strata quartz sections basalt loess dated stratum probably

This paper reports that the ages determined on the baked strata of 8 typical seciionsin the Datong volcanic cluster are within (0.98±0.02)×10~5yr. and (2.9±0.2)×10~5yr B. P.by using quartz thermoluminescence dating technique. The age values and stratigraphical position of the volcanic lava flow reveal that 4 typi-cal sections may be taken for the study of thc eras of Datong volcanic activities, i. e. the Yu-jiazhai section, 300,000 yr B. P.; the Yuangou section, 200,000 yr B. P.; the South Canyonsection of Heishan, 150,000 yr B. P.; the Huangjiawa section, 100,000 yr B. P.

This paper reports that the following determines on the baked strata of 8 typical secions in the Datong volcanic cluster are within (0.98 ± 0.02) × 10 ~ 5yr. And (2.9 ± 0.2) × 10 ~ 5yr BPby using quartz thermoluminescence dating technique. The age values ​​and stratigraphical position of the volcanic lava flow reveal that 4 typi-cal sections may be taken for the study of th e ence of Datong volcanic activities, ie the Yu-jiazhai section, 300,000 yr BP; the Yuangou section, 200,000 yr BP; the South Canyon section of Heishan, 150,000 yr BP; the Huangjiawa section, 100,000 yr BP