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首页> 外文期刊>Journal of Asian earth sciences >The δ~(18)O and δ~(13)C records in an aragonite stalagmite from Furong Cave,Chongqing, China: A-2000-year record of monsoonal climate
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The δ~(18)O and δ~(13)C records in an aragonite stalagmite from Furong Cave,Chongqing, China: A-2000-year record of monsoonal climate

机译:重庆芙蓉洞文石石笋中的δ〜(18)O和δ〜(13)C记录:季风气候的A-2000年记录

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摘要

A 7-cm long aragonite stalagmite, FR0510-1, from Furong Cave, Chongqing, was dated by ~(210)Pb and ~(230)Th methods, revealing a-2000-year record of climate history under the influence of the East Asian Monsoon. The FR0510-1 record resembles Dongge Cave DA record on 10-100-year scales, but quite different from the Wanxiang Cave WX42B record, indicating that while stalagmite δ~(18)O record represents local/regional moisture change, spatial variability of the monsoonal rainfall over eastern China must take into account. During the past 2000 years, climate in Chongqing was relatively wet in the intervals of 50 BC-AD 250, AD 1150-1450 and AD 1600-1950, and relatively dry during the periods of AD 250-1150 and AD 1450-1600. Dry conditions were prevailing over the Medieval Warm Period, whereas wet climates were dominant during the most time of the Little Ice Age in Chongqing area.
机译:用〜(210)Pb和〜(230)Th方法对重庆芙蓉洞的一块7厘米长的文石石笋FR0510-1进行了测年,揭示了在东方影响下2000年的气候历史记录。亚洲季风。 FR0510-1记录类似于10-100年尺度上的东阁洞DA记录,但与万向洞WX42B记录有很大不同,这表明石笋δ〜(18)O记录代表了局部/区域的水分变化,但石笋的空间变异性却很大。必须考虑中国东部的季风降雨。在过去的2000年中,重庆的气候在BC-AD 250,AD 1150-1450和AD 1600-1950之间相对较湿,在AD 250-1150和AD 1450-1600期间相对较干燥。在中世纪温暖时期,干旱条件普遍存在,而在重庆小冰期的大部分时间里,潮湿气候占主导地位。

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  • 来源
    《Journal of Asian earth sciences》 |2011年第6期|p.1121-1130|共10页
  • 作者单位

    Department of Earth Sciences, National Cheng-Kung University, Tainan 70101, Taiwan, ROC School of Environmental Science (&) Engineering, Guangzhou University, Guangzhou 510006, China High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosdences, National Taiwan University, Taipei 10617, Taiwan, ROC;

    Department of Earth Sciences, National Cheng-Kung University, Tainan 70101, Taiwan, ROC;

    Department of Earth Sciences, National Cheng-Kung University, Tainan 70101, Taiwan, ROC;

    High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosdences, National Taiwan University, Taipei 10617, Taiwan, ROC;

    School of Geographical Sciences, Southwest University of China, Chongqing 400715, China;

    School of Geographical Sciences, Southwest University of China, Chongqing 400715, China;

    School of Environmental Science (&) Engineering, Guangzhou University, Guangzhou 510006, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aragonite stalagmite; oxygen and carbon isotopes; furong cave; chongqing; paleodimate;

    机译:文石石笋;氧碳同位素;芙蓉洞;重庆;古生物;

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