大陆科学钻探开展古气候研究进展

发布时间：2019-04-20 16:21

【摘要】：当前气候变化问题已经引起全社会的广泛关注。地质历史时期(包括第四纪和"深时")的古气候研究可为了解现代气候变化提供借鉴,大陆科学钻探成为开展此研究的重要手段。文中对大陆科学钻探开展古气候研究的进展作一综述。获取连续沉积记录是大陆科学钻探的最大优势,地质学家通过对岩心建立高分辨率年代地层框架和应用多种古气候替代性指标,重建地质历史时期不同时间尺度上的陆地古气候变化,发现并精确厘定陆地古气候-古环境快速变化事件,进而通过精细对比陆地-海洋古气候记录,揭示气候变化的过程和机制。这些研究成果将加深人类对地球气候系统的认识,并为未来气候预测提供科学依据。可以预见,大陆科学钻探将成为古气候研究的一种常用手段,在未来的古气候研究领域,特别是"深时"温室气候研究中发挥更加重要的作用。
[Abstract]:At present, the problem of climate change has attracted wide attention of the whole society. Paleoclimate studies in geological and historical periods (including Quaternary and "deep time") can be used for reference to understand modern climate change, and continental scientific drilling has become an important means to carry out this study. The progress of paleoclimate research in continental scientific drilling is reviewed in this paper. Obtaining continuous sedimentary records is the greatest advantage of continental scientific drilling. Geologists establish high-resolution chronostratigraphic frameworks on cores and apply a variety of paleoclimate alternative indicators. Reconstruction of terrestrial paleoclimate changes at different time scales during geological and historical periods, discovery and accurate determination of rapid change events of terrestrial paleoclimate-paleoenvironment, and fine comparison of land-ocean paleoclimate records. Reveal the processes and mechanisms of climate change. These results will deepen the understanding of the Earth's climate system and provide a scientific basis for future climate prediction. It can be predicted that continental scientific drilling will become a common means of paleoclimate research, and play a more important role in future paleoclimatic research, especially in "deep time" greenhouse climate research.
【作者单位】：中国地质大学生物地质与环境地质国家重点实验室;中国地质大学(北京)地球科学与资源学院;中国地质大学(北京)地质调查研究院;
【基金】：国家重点基础研究发展计划“973”项目(2012CB822000) 国家自然科学基金项目(41602116) 国际大陆科学钻探计划(ICDP)项目
【分类号】：P532;P634

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