中更新世以来的哈尔滨黄土物源变化

汪进秋, 谢远云, 康春国, 迟云平, 孙磊, 吴鹏, 魏振宇

Changing provenance of Harbin loess since the Middle Pleistocene： evidence from TIMA automated quantification of minerals

Jinqiu Wang, Yuanyun Xie, Chunguo Kang, Yunping Chi, Lei Sun, Peng Wu, Zhenyu Wei

表1 荒山剖面OSL、ESR和 14C测年结果

Table 1 OSL， ESR and 14C dating results of Huangshan profile in Harbin

样品号 深度/m K/% Th/10-6 U/10-6 含水率/% 剂量率/(Gy·ka-1) 等效剂量/Gy OSL年龄/ka ESR年龄/ka 14C年龄/a BP 树轮矫正年龄/cal a BP OSL-1 4.18 2.45±0.05 12.7±0.2 3.1±0.55 11 4.2±0.2 146.6±6.3 35.0±2.8 OSL-2 5.23 2.47±0.05 12.3±0.2 2.7±0.53 11 4.1±0.2 169.1±18.6 41.6±5.4 OSL-3 5.87 2.41±0.05 12.7±0.2 3.±10.53 10 4.2±0.2 197.8±12.0 47.4±4.2 ESR-1 28.6 3.22 12.5 2.13 18.5 3.51 1 698±139 484±40 ESR-2 30.2 3.16 12.4 2.08 23.7 3.19 1 570±201 492±25 ESR-3 30.8 3.02 12.1 2.17 36.4 2.52 1 248±78 495±31 14C-1 30 520±25 538±25 14C-2 70 1 415±20 1 318±15 14C-3 110 5 170±30 5 933±36 14C-4 130 5 885±30 6 760±33 14C-5 300 21 160±150 25 496±166