岗日嘎布玉东曲末次冰消期冰川演化及其10Be暴露测年研究
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董国成, 王友琪, 付云翀, 毋宇斌
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Cosmogenic 10Be constraints on the last deglacial glacier behaviors in the Yudongqu Valley， Gangrigabu Range， southeast Tibetan Plateau
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Guocheng DONG, Youqi WANG, Yunchong FU, Yubin WU
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表1 玉东曲样品详细信息（包括样品地理信息、尺寸、10Be加速器测量数据、10Be浓度和暴露年龄等）
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Table 1 Sample details， 10Be data， and exposure-ages of granitic glacial boulders dated in the Yudongqu Valley
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| 冰碛垄编号 | 样品 编号 | 纬度/N | 经度/E | 海拔/m | 漂砾尺寸（长/宽/高）/cm | 样品厚度/cm | 屏蔽系数a | 石英质量/g | Be载体质量b/g | 10Be/9Be（10-15）c | 10Be浓度/（105原子/每克石英） | 10Be暴露年龄与外部误差d/ka | 内部误差/ka |
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| M3 | GYX16 | 29.169533° | 97.179699° | 3 457 | 110/100/90 | 1.3 | 0.9895 | 40.0203 | 0.3315 | 994.52±40.57 | 5.47±0.23 | 17.3±1.3 | 0.7 | | GYX17 | 29.169645° | 97.179803° | 3 453 | 70/55/50 | 1.5 | 0.9836 | 42.6368 | 0.3287 | 1 052.92±36.74 | 5.39±0.20 | 17.2±1.2 | 0.6 | | GYX18 | 29.168997° | 97.179496° | 3 463 | 220/100/70 | 6.4 | 0.9874 | 49.3827 | 0.3281 | 1 116.40±41.18 | 4.93±0.19 | 16.3±1.2 | 0.6 | | GYX19 | 29.168692° | 97.179361° | 3 464 | 128/96/55 | 1.1 | 0.9857 | 47.7245 | 0.3290 | 1 205.72±40.91 | 5.52±0.20 | 17.4±1.2 | 0.6 | | GYX20 | 29.168232° | 97.179280° | 3 465 | 414/265/252 | 3.4 | 0.9873 | 45.9309 | 0.3275 | 845.14±39.77 | 3.99±0.19 | 13.3±1.0 | 0.6 | | M4 | GYX01 | 29.169075° | 97.180134° | 3 462 | 190/90/75 | 2.6 | 0.9911 | 45.9102 | 0.3281 | 1 296.11±46.19 | 6.16±0.23 | 19.3±1.4 | 0.7 | | GYX02 | 29.169162° | 97.180279° | 3 461 | 201/132/82 | 1.9 | 0.9918 | 50.7238 | 0.3265 | 1 119.55±13.47 | 4.79±0.08 | 15.3±0.9 | 0.2 | | GYX03 | 29.169162° | 97.180279° | 3 461 | 133/106/72 | 3.9 | 0.9918 | 42.3993 | 0.3269 | 1 132.51±36.17 | 5.80±0.20 | 18.5±1.3 | 0.6 | | GYX04 | 29.169350° | 97.180388° | 3 465 | 175/100/60 | 7.5 | 0.9906 | 49.3176 | 0.3282 | 1 184.85±38.15 | 5.24±0.18 | 17.3±1.2 | 0.6 | | GYX05 | 29.169490° | 97.180504° | 3 459 | 210/130/110 | 2.3 | 0.9871 | 54.5455 | 0.3265 | 1 262.17±15.41 | 5.02±0.08 | 16.5±1.0 | 0.3 | | M5 | GYX06 | 29.168282° | 97.180143° | 3 493 | 210/170/210 | 8.0 | 0.9930 | 43.7816 | 0.3297 | 1 151.99±37.36 | 5.76±0.20 | 18.6±1.3 | 0.7 | | GYX07 | 29.168237° | 97.180060° | 3 486 | 55/50/50 | 3.1 | 0.9931 | 51.4638 | 0.3279 | 1 290.84±14.43 | 5.47±0.08 | 17.2±1.1 | 0.3 | | M6 | GYX09 | 29.168503° | 97.181150° | 3 474 | 160/90/60 | 6.5 | 0.9842 | 26.2030 | 0.3325 | 607.41±32.69 | 5.09±0.28 | 16.7±1.4 | 0.9 | | GYX10 | 29.168509° | 97.181154° | 3 474 | 210/120/70 | 4.2 | 0.9842 | 46.5147 | 0.3207 | 854.24±37.27 | 3.90±0.18 | 13.1±1.0 | 0.6 | | Blank （空白样） | | | | | | | | 0.3266 | 6.73±1.21 | | | |
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