九江市蓼花剖面末次冰期中晚期沉积物的地球化学特征及环境意义

刘建伟, 孙丽, 李志文, 钟颖, 杨妙文, 张晓晴

Characteristics of geochemical and environmental significance in the mid-late of the Last Glacial Period sediments in Liaohua section of Jiujiang， Jiangxi Province

Jianwei Liu, Li Sun, Zhiwen Li, Ying Zhong, Miaowen Yang, Xiaoqing Zhang

表2 蓼花剖面的OSL测年结果

Table 2 OSL dating results of the Liaohua section

样品位置 深度/m U/10-6 Th/10-6 K/% 等效剂量/Gy 剂量率/(Gy·ka-1) 年龄/ka LH1顶 0.10 0.76 3.41 2.25 2.31±0.10 3.09±012 0.7±0.0 LH2顶 2.93 1.55 5.37 2.20 49.90±2.45 3.45±0.14 14.5±0.9 LH3顶 3.43 2.53±0.04 11.67±0.29 2.16±0.02 71.60±3.10 4.18±0.17 17.1±1.0 LH5顶 4.75 2.27±0.09 10.48±0.33 2.31±0.03 105.53±4.86 4.22±0.17 25.0±1.5 LH5底 5.04 1.22±0.07 4.85±0.15 2.31±0.02 91.52±1.86 3.25±0.13 28.1±1.3 LH11下部 9.42 0.95 4.27 2.18 142.96±8.48 3.04±0.12 47.0±3.4