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黄土高原微生物膜类脂物和碳酸盐二元同位素重建古温度的研究进展 被引量:5

QUANTITATIVE PALEOTEMPERERATURE RECONSTRUCTION OF THE CHINESE LOESS PLATEAU: A REVIEW
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摘要 黄土高原地区连续的黄土沉积是研究古气候演变的天然档案,如何选取气候环境意义较为明确的代用指标重建古环境是当前研究的热点议题。尽管磁化率、粒度、碳酸钙和孢粉等被广泛地用于东亚地区冬夏季风历史的半定量重建,但是,对于该地区更为细致的古温度定量重建工作却少有涉及,目前尚处于起步阶段。鉴于黄土-古土壤巨大的研究潜力以及古温度定量重建对深入理解古气候演变及其驱动机制的特殊意义,黄土高原地区古温度研究应给予高度关注。在已发表的黄土高原古温度重建的两种方法(MBT/CBT、二元同位素)基础上,详细介绍MBT/CBT和二元同位素的原理和应用;进而总结该地区晚中新世以来的温度变化历史并讨论生物标志化合物和二元同位素在黄土高原地区的应用前景和存在问题。 The continuous late Miocene-Pliocene red-clay sequence and the Quaternary loess sequence on the Chinese Loess Plateau(CLP) have provided valuable information for the study of Asian paleoclimate history.Although numerous climatic proxies have been applied to Chinese loess,few are able to reflect paleotemperature history of the CLP.Here we reviewed the theory of two novel paleotemperature proxies(MBT/CBT,and "clumped isotope") and their application to the CLP to further understand the temperature history of the CLP.Applying these two proxies to the same materials will be able to further test their validity in reflecting temperature history on the CLP and is the natural step in future paleoclimate studies.
出处 《海洋地质与第四纪地质》 CAS CSCD 北大核心 2013年第3期151-158,共8页 Marine Geology & Quaternary Geology
基金 兰州大学中央高校基本科研业务费专项资金项目(860552) 国家自然科学基金项目(41172329) 教育部新世纪人才基金项目(NCET-09-0443)
关键词 古温度 MBT CBT指标 二元同位素 定量重建 黄土高原 paleotemperature MBT/CBT clumped isotope quantitative restruction Chinese loess plateau
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