| 西昆仑山甜水海钻孔氧化铁指标的R／S分析及其意义 |
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| 引用本文： | 周厚云,李世杰.西昆仑山甜水海钻孔氧化铁指标的R／S分析及其意义[J].冰川冻土,1999,21(2):136-140. |
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| 作者姓名： | 周厚云 李世杰 |
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| 作者单位： | [1]中国科学院广州地球化学研究所 [2]中国科学院兰州冰川冻土研究所 |
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| 摘 要： | 运用Ｒ／Ｓ分析法，对经过等时处理的甜水海钻孔氧化铁３项指标ＦｅＯ、Ｆｅ２Ｏ３及其比值ＦｅＯ／Ｆｅ２Ｏ３进行了分析计算，其指标都存在明显的Ｈｕｒｓｔ现象，Ｈｕｒｓｔ指数Ｈ分别为：Ｆｅ２Ｏ３为０．７６，ＦｅＯ为０．８５，ＦｅＯ／Ｆｅ２Ｏ３为０．６５，它们都大于０．５。反映了该地区过去２０多万年来气候环境变化存在持续性。３者Ｈｕｒｓｔ指数存在差异的原因目前还不清楚，可能说明它们反映气候环境演化持续性强度
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| 关 键 词： | 甜水海 钻孔 氧化铁指标 R／S分析 古气候 |
R/S Analysis of Indexes of Ferric Oxide From Tianshuihai Lake Core and Their Implication |
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| ZHOU Houyun, YU Suhua, ZHU Zhaoyu,WEN Qizhong.R/S Analysis of Indexes of Ferric Oxide From Tianshuihai Lake Core and Their Implication[J].Journal of Glaciology and Geocryology,1999,21(2):136-140. |
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| Authors: | ZHOU Houyun YU Suhua ZHU Zhaoyu WEN Qizhong |
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| Abstract: | Based on a R / S analysis of FeO,Fe2O3 and ratio of FeO/ Fe2O3 from Tianshuihai Lake core, which is scaled with time, it is found that there are obvious Hurst effect with Hurst indexes of 0.85, 0.76 and 0.65 respectively. All the three Hurst indexes are greater than 0.5, showing a persistence in the climate and environment evolution around the Tianshuihai lake area during the past 200 ka or more.At present it is not clear why these Hurst indexes are different from each other. Maybe this shows a difference in the intensity of persistence in climatic and environment variation. The persistence in the climatic and environmental evolution around the Tianshuihai lake area since 200 ha BP or more also existed in some other areas and probably resulted from the uplift of the Tibetan Plateau through the Cenozoic era. |
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| Keywords: | Tianshuihai Lake core indexes of ferric oxide R / S analysis |
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