青藏高原（格尔木-亚东）冰缘现象及其气候意义
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刘擎,李宜垠,孙才奇,聂振宇,杨玮琳,崔之久,刘耕年
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Periglacial phenomena along the Qinghai-Tibet Highway from Golmud to Yadong and their climatic significance
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Qing LIU,Yiyin LI,Caiqi SUN,Zhenyu NIE,Weilin YANG,Zhijiu CUI,Gengnian LIU
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表1 冰缘地貌与沉积现象及年龄
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Table 1 The periglacial landforms， sedimentary phenomena and ages
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| 采样点 | 样品 编号 | 采样位置 | 海拔/m | 地貌 | 冰缘类型 | 采样深/cm | 测年方法 | 年代/ka |
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| 经度/E | 纬度/N | 测定年代 | 校正年代 |
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| 格尔木南山口 | NSK01 | 94.76412° | 36.22398° | 3 014 | 冲积扇 | 古砂楔 | 121 | OSL | 1.7±0.27 | | | NSK02 | 94.76412° | 36.22398° | 3 014 | 冲积扇 | 古砂楔 | 172 | OSL | 2.8±1.60 | | | NSK03 | 94.76412° | 36.22398° | 3 014 | 冲积扇 | 冲积物 | 180 | OSL | 13.3±4.30 | | | NSK04 | 94.78235° | 36.29290° | 2 962 | 冲积扇 | 冲积物 | 174 | OSL | 15.4±0.85 | | | NSK05 | 94.78235° | 36.29290° | 2 962 | 冲积扇 | 古砂楔 | 117 | OSL | 9.3±0.46 | | | NSK06 | 94.78235° | 36.29290° | 2 962 | 冲积扇 | 古砂楔 | 138 | OSL | 14.5±1.00 | | | NSK07 | 94.78235° | 36.29290° | 2 962 | 冲积扇 | 古砂楔 | 297 | OSL | 20.0±1.70 | | | 格尔木小干沟［16］ | GEMH-1 | 94.81075° | 36.13622° | 3 198 | 河流阶地 | 黄土 | 28 | OSL | 5.8±0.60 | | | GEMH-2 | 94.81075° | 36.13622° | 3 198 | 河流阶地 | 黄土 | 268 | OSL | 13.9±1.40 | | | GEMH-3 | 94.81075° | 36.13622° | 3 198 | 河流阶地 | 成层坡积 | 298 | OSL | 17.3±1.80 | | | GEMH-5 | 94.81075° | 36.13622° | 3 198 | 河流阶地 | 成层坡积 | 710 | OSL | 29.8±3.00 | | 格尔木纳赤台［15］ 4级阶地 | NCT-4-2 | 94.54842° | 35.88252° | 3 599 | 河流T4阶地 | 冻融褶皱 | 200 | 14C | 9.23±0.055 | 10.386±0.136 | | NCT-4-3 | 94.54842° | 35.88252° | 3 584 | 河流T4阶地 | 冻融褶皱 | 125 | OSL | 11.1±1.20 | | | SCH-4-2 | 94.36117° | 35.87612° | 3 793 | 河流T4阶地 | 冲积物 | 200 | OSL | 16.1±2.00 | | | 纳赤台2级阶地 | NCT-2-3 | 94.58670° | 35.88910° | 3 546 | 河流T2阶地 | 冻融褶皱 | 210 | OSL | 11.1±1.1 | | | 纳赤台1级阶地 | NCT-1-2 | 94.62152° | 35.90382° | 3 510 | 河流T1阶地 | 冻融褶皱 | 100 | OSL | 4.3±0.4 | | | 昆仑山口小南川剖面［18］ | XNC-1 | 94.32737° | 35.75204° | 4 100 | 坡地 | 黄土 | 270 | 14C | 3.475±0.23 | 3.791±0.292 | | XNC-2 | 94.32737° | 35.75204° | 4 100 | 坡地 | 黄土 | 400 | 14C | 3.545±0.09 | 3.842±0.118 | | XNC-3 | 94.32737° | 35.75204° | 4 100 | 坡地 | 黄土 | 850 | 14C | 24.47±0.765 | 39.306±0.845 | | XNC-4 | 94.32737° | 35.75204° | 4 100 | 坡地 | 成层坡积 | 900 | TL | 44.11±3.08 | | | XNC-5 | 94.32737° | 35.75204° | 4 100 | 坡地 | 成层坡积 | 1 500 | TL | 60.56±1.72 | | | 昆仑山热水［19］ | RS01 | 95.27530° | 35.74410° | 3 960 | 冲积扇 | 冲积物 | 150 | 14C | 5.66±0.13 | 6.478±0.138 | | RS02 | 95.27530° | 35.74410° | 3 960 | 冲积扇 | 风成砂 | 270 | TL | 18.44±1.47 | | | 楚玛尔河 | CMEH-1 | 93.29566° | 35.30154° | 4 542 | 河流阶地 | 冲积物 | 135 | OSL | 2.5±0.3 | | | CMEH-2 | 93.29566° | 35.30154° | 4 542 | 河流阶地 | 冲积物 | 135 | OSL | 3.2±0.3 | | | CMEH-3 | 93.29303° | 35.29825° | 4 554 | 河流阶地 | 冰楔假型 | 62 | OSL | 11.7±1.20 | | | CMEH-4 | 93.29303° | 35.29825° | 4 554 | 河流阶地 | 冲积物 | 112 | OSL | 113.4±12.5 | | | 那曲谷露 | GLZN01 | 91.59879° | 30.77738° | 4 641 | 河流阶地 | 冰楔假型 | 201 | OSL | 27.0±3.10 | | | 纳木错 | NMC01 | 91.10353° | 30.75915° | 4 794 | 湖滨阶地 | 冰楔假型 | 110 | OSL | 54.0±31.0 | | | 羊八井 | YBJ04 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 60 | 14C | 1.185±0.02 | 1.118±0.036 | | YBJ05 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 160 | 14C | 1.525±0.035 | 1.433±0.056 | | YBJ06 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 300 | 14C | 3.085±0.03 | 3.312±0.039 | | YBJ07 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 370 | 14C | 7.13±0.03 | 7.967±0.019 | | YBJ08 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 440 | 14C | 9.51±0.035 | 10.881±0.148 | | YBJ09 | 90.55507° | 30.13429° | 4 418 | 冲沟 | 冻融褶皱 | 500 | 14C | 10.660±0.035 | 12.671±0.054 | | 亚东堆纳 | DN01 | 89.20815° | 27.91675° | 4 552 | 冲积扇 | 古砂楔 | 52 | OSL | 6.9±0.40 | | | 亚东帕里 | PLB01 | 89.14846° | 27.75953° | 4 287 | 冲积扇 | 冻融褶皱 | 283 | OSL | 14.3±0.98 | | | PLB02 | 89.14846° | 27.75953° | 4 287 | 冲积扇 | 冻融褶皱 | 315 | OSL | 14.3±0.93 | |
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