萨拉乌苏河流域MGS2层段粒度与CaCO3记录的千年尺度气候变化

王丰年, 李保生, 王江龙, 牛东风, 温小浩, 李志文, 司月君, 杜恕环

Millennium-scale Climate Variations from the Record of Grain-size and CaCO3 During the Pleniglacial in the Salawusu River Valley, China

Feng-nian WANG, Bao-sheng LI, Jiang-long WANG, Dong-feng NIU, Zhi-wen LI, Yue-jun SI, Shu-huan DU

表1 MGS2及相关层位的热释光年代测定值和测试参数

Table 1 TL dating results of some horizons and their parameters in the MGS2

层位/样品编号 深度 (m) U (10-6) Th (10-6) K(10-6) 年剂量（m Gy） 总剂量 (Gy) TL (ka B.P.) 18D/TGD-627 8.44 0.92±0.05 6.07±0.12 1.91±0.015 2.48±0.08 186.20±13.96 9.88±0.9 24D/PKG586 10.525 1.834 8.514 1.140 2.652 33.562±4.774 14.458±0.867 26D/XAL895 11.645 5.5 4.1 1.70 3.16 60.806±3.21 19.236±1.554