| Branched glycerol dialkyl glycerol tetraethers and paleoenvironmental reconstruction in Zoigê peat sediments during the last 150 years |
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| 基金项目： | supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCXZ-YW-JC103); the Foundation for Outstanding Scholarship of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIGRC-09-02) |
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| 摘 要： | Branched glycerol dialkyl glycerol tetraethers (GDGTs) were analyzed in peat samples taken from the Zoigê grassland, located on the eastern margin of the Qinghai-Tibetan Plateau. The mean annual air temperature (MAAT) and pH in the 210 Pb-dating peat core were reconstructed based on the cyclization of branched tetraethers (CBT) and methylation of branched tetraethers (MBT) indices for the last 150 years. The results showed that the MAAT and pH values involved three stages of variation over the last 150 year...
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| 关 键 词： | peat Zoigê grassland methylation of branched tetraethers cyclization of branched tetraethers mean annual air temperature paleoclimate paleoenvironment |
| 收稿时间： | 13 April 2009 |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
