| 2．5Ma以来古气候环境演变代用指标研究进展 |
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| 引用本文： | 管后春,李运怀,杨西飞.2．5Ma以来古气候环境演变代用指标研究进展[J].安徽地质,2008,18(1):47-53. |
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| 作者姓名： | 管后春 李运怀 杨西飞 |
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| 作者单位： | 1. 安徽省地质调查院,合肥,230001
2. 合肥工业大学资源与环境工程学院,合肥,230009 |
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| 摘 要： | 简要回顾了国内外有关2．5Ma．以来古气候环境演变代用指标的理论及其应用研究成果，对磁化率、孢粉、δ^13C、粒度、地球化学及分形等气候环境代用指标作了重点评述，并对古土壤磁化率增强的物理机制和δ^13C恢复古环境的理论基础作了初步分析，以及在此基础上对今后的研究趋势进行了探讨。
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| 关 键 词： | 古气候环境 磁化率 孢粉 δ^13C 粒度 地球化学 分形 |
| 文章编号： | 1005-6157(2008)01-47-07 |
| 修稿时间： | 2007年9月29日 |
ADVANCES IN STUDY ON THE INDICATORS OF PALAEOCLIMATIC AND PALAEOENVIRONMENTAL EVOLVEMENT IN THE PAST 2.5MA |
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| GUAN Hou-chun,LI Yun-huai,YANG Xi-fei.ADVANCES IN STUDY ON THE INDICATORS OF PALAEOCLIMATIC AND PALAEOENVIRONMENTAL EVOLVEMENT IN THE PAST 2.5MA[J].Geology of Anhui,2008,18(1):47-53. |
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| Authors: | GUAN Hou-chun LI Yun-huai YANG Xi-fei |
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| Affiliation: | GUAN Hou-chun1,LI Yun-huai1,YANG Xi-fei2(1.Anhui Institte of Geological Survey,Hefei 230001,Anhui,China,2.School of Natural Resources , Environmental Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The theory and its applications at home and abroad on the indicators of palaeoclimatic and palaeoenvironmental evolvement in the past 2.5Ma are reviewed in this paper, with emphasis being put on magnetic susceptibility, pollen,δ^13C, grain size, geochemical characterization and fractal, including an initial analysis made for the physical mechanism on the increase of magnetic susceptibility and the theory on the palaeoclimatic and palaeoenvironmental construction with δ^13C. Based on this review, future research tendencies are discussed. |
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| Keywords: | palaeoclimate and palaeoenvironment magnetic susceptibility pollen δ^13C grain size geochemical characterization fractal |
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