| 昆仑山垭口热水剖面18000年以来的环境变化记录 |
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| 引用本文： | 刘耕年,崔之久,伍永秋,许清海.昆仑山垭口热水剖面18000年以来的环境变化记录[J].地质力学学报,1997,3(4):39-45. |
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| 作者姓名： | 刘耕年 崔之久 伍永秋 许清海 |
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| 作者单位： | 1. 北京大学城市与环境系; |
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| 摘 要： | 昆仑山垭口热水剖面的沉积特征观测、粒度分析、化学分析、孢粉分析和年代测定等表明厚270cm的沉积物记录了自18kaBP以来的环境变化信息。资料显示18-11kaBP期间这里气候严寒而干燥,为末次冰期由全盛到消退阶段。在10-7.8kaBP和4.5-3kaBP出现两次较温暖的时期。在6.7-5.6kaBP和2.3kaBP以后有两次明显的变冷。
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| 关 键 词： | 昆仑山垭口 热水剖面 环境变化 |
RECORD OF ENVIRONMENTAL CHANGE IN RESHUI PROFILE AT KUNLUNSHAN PASS SINCE 18 kaBP |
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| Liu Gengnian,Cui Zhijiu,Wu Yongqiu and Xu Qinghai.RECORD OF ENVIRONMENTAL CHANGE IN RESHUI PROFILE AT KUNLUNSHAN PASS SINCE 18 kaBP[J].Journal of Geomechanics,1997,3(4):39-45. |
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| Authors: | Liu Gengnian Cui Zhijiu Wu Yongqiu and Xu Qinghai |
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| Institution: | 1. Department of Geography, Peking University;2. Department of Geography, Beijing Normal University;3. Institute of Geography, Hebei Academy of Sciences, Shijiazhuang |
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| Abstract: | A study of the sedimentary structures,chemical compossition,grain size and sporopollen assemblages of the 270 cm thick sediments of the Reshui Profile has yielded information of environmental change since 18 kaBP at Kunlunshan Mountains Pass,Qinghai Tibetan Plateau.The evidence indicates a severe cold-dry climate in 18-11 kaBP,a period which corresponds to the time span from the climax to the end of Late Glaciation.There were two warmer periods in 10-7.8 kaBP and 4.5-3 kaBP.Two colder periods occurred in 6.7-5.6 kaBP and in a time after 2.3 kaBP. |
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| Keywords: | Kunlunshan pass Reshui profile environmental change |
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