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黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定

张美良 林玉石 覃嘉铭 章程 涂林玲 程海

张美良, 林玉石, 覃嘉铭, 章程, 涂林玲, 程海. 黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定[J]. 沉积学报, 2003, 21(3): 473-481.
引用本文: 张美良, 林玉石, 覃嘉铭, 章程, 涂林玲, 程海. 黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定[J]. 沉积学报, 2003, 21(3): 473-481.
ZHANG Mei-liang, LIN Yu-shi, QIN Jia-ming, ZHANG Cheng, TU Lin-lin, CHENG Hai. The Record of Paleoclimatic Change and the Termination of the Last Interglacial Period From A Stalagmite of Qingxin Cave in South Guizhou[J]. Acta Sedimentologica Sinica, 2003, 21(3): 473-481.
Citation: ZHANG Mei-liang, LIN Yu-shi, QIN Jia-ming, ZHANG Cheng, TU Lin-lin, CHENG Hai. The Record of Paleoclimatic Change and the Termination of the Last Interglacial Period From A Stalagmite of Qingxin Cave in South Guizhou[J]. Acta Sedimentologica Sinica, 2003, 21(3): 473-481.

黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定

基金项目: IGCP448国际对比项目;科技部攀登特别资助项目“全球岩溶生态系统对比”(编号:2000-026)资助
详细信息
    作者简介:

    张美良,男,1956年出生,副研究员,区域岩溶和古环境变化

  • 中图分类号: P642.25

The Record of Paleoclimatic Change and the Termination of the Last Interglacial Period From A Stalagmite of Qingxin Cave in South Guizhou

  • 摘要: 当前在全球气候变化预测研究中,洞穴石笋的高分辨定年和碳、氧同位素组成的变化规律研究,为这个领域的突破和填补空白做出了巨大贡献。通过对贵州都匀七星洞 1号石笋进行 11件TIMS U系测年和 79件碳、氧同位素分析,获得了距今 10 9.0 0kaB.P.至 6 5.90kaB.P.的高分辨率古气候记录。石笋在大于 10 9.0 0kaB.P.前开始生长,于 6 5.90kaB.P.后停止生长,平均沉积速率为 4.5 8mm/ 10 0a,属晚更新世的沉积产物。七星洞 1号石笋剖面的研究揭示,其年龄和δ18O同位素的变化,可以与深海岩芯氧同位素记录所揭示的第五阶段中的 5a、5b、5c和第四阶段的早期进行对比。它的碳、氧同位素记录揭示,在 10 9.0~ 10 2.5kaB.P.和 86.6~ 78.92kaB.P.时段,显示受东亚夏季风影响较强,气温升高,降水增多,δ18O偏负,表现为温暖湿润的气候环境。在 10 2.5~ 86.6kaB.P.时段,显示受东亚夏季风影响强度减弱,受东亚冬季风影响强度增加,气温降低,大气降水减少,δ18O稍趋向偏正,表现为冷凉半湿润—温凉湿润的气候环境;而在 78.92~ 6 5.6kaB.P.时段,显示东亚冬季风强盛和受西北风影响较强,海表温度下降,大气温度降低,降水量较少,δ13O偏重,δ13 C偏正 (C4植物占 95 % ),表现为严寒
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  • 收稿日期:  2002-06-25
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目录

    黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定

      基金项目:  IGCP448国际对比项目;科技部攀登特别资助项目“全球岩溶生态系统对比”(编号:2000-026)资助
      作者简介:

      张美良,男,1956年出生,副研究员,区域岩溶和古环境变化

    • 中图分类号: P642.25

    摘要: 当前在全球气候变化预测研究中,洞穴石笋的高分辨定年和碳、氧同位素组成的变化规律研究,为这个领域的突破和填补空白做出了巨大贡献。通过对贵州都匀七星洞 1号石笋进行 11件TIMS U系测年和 79件碳、氧同位素分析,获得了距今 10 9.0 0kaB.P.至 6 5.90kaB.P.的高分辨率古气候记录。石笋在大于 10 9.0 0kaB.P.前开始生长,于 6 5.90kaB.P.后停止生长,平均沉积速率为 4.5 8mm/ 10 0a,属晚更新世的沉积产物。七星洞 1号石笋剖面的研究揭示,其年龄和δ18O同位素的变化,可以与深海岩芯氧同位素记录所揭示的第五阶段中的 5a、5b、5c和第四阶段的早期进行对比。它的碳、氧同位素记录揭示,在 10 9.0~ 10 2.5kaB.P.和 86.6~ 78.92kaB.P.时段,显示受东亚夏季风影响较强,气温升高,降水增多,δ18O偏负,表现为温暖湿润的气候环境。在 10 2.5~ 86.6kaB.P.时段,显示受东亚夏季风影响强度减弱,受东亚冬季风影响强度增加,气温降低,大气降水减少,δ18O稍趋向偏正,表现为冷凉半湿润—温凉湿润的气候环境;而在 78.92~ 6 5.6kaB.P.时段,显示东亚冬季风强盛和受西北风影响较强,海表温度下降,大气温度降低,降水量较少,δ13O偏重,δ13 C偏正 (C4植物占 95 % ),表现为严寒

    English Abstract

    张美良, 林玉石, 覃嘉铭, 章程, 涂林玲, 程海. 黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定[J]. 沉积学报, 2003, 21(3): 473-481.
    引用本文: 张美良, 林玉石, 覃嘉铭, 章程, 涂林玲, 程海. 黔南七星洞石笋古气候变化记录及末次间冰期终止点的确定[J]. 沉积学报, 2003, 21(3): 473-481.
    ZHANG Mei-liang, LIN Yu-shi, QIN Jia-ming, ZHANG Cheng, TU Lin-lin, CHENG Hai. The Record of Paleoclimatic Change and the Termination of the Last Interglacial Period From A Stalagmite of Qingxin Cave in South Guizhou[J]. Acta Sedimentologica Sinica, 2003, 21(3): 473-481.
    Citation: ZHANG Mei-liang, LIN Yu-shi, QIN Jia-ming, ZHANG Cheng, TU Lin-lin, CHENG Hai. The Record of Paleoclimatic Change and the Termination of the Last Interglacial Period From A Stalagmite of Qingxin Cave in South Guizhou[J]. Acta Sedimentologica Sinica, 2003, 21(3): 473-481.
    参考文献 (46)

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