Reconstruction of atmospheric CO₂ during the Oligocene based on leaf fossils from the Ningming Formation in Guangxi, China

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• 作者：Bai-Nian Sun^a ; ^{bnsun@lzu.edu.cn} ; Qiu-Jun Wang^b ; ^{wangqj06linyu@163.com} ; Wilfried Konrad^c ; Fu-Jun Ma^d ; Jun-Ling Dong^a ; Zi-Xi Wang^a
• 关键词：Atmospheric CO2 ; Oligocene ; Gas exchange ; Stomatal ratio ; China
• 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：467
• 期：Complete
• 页码：5-15
• 全文大小：2031 K
• 卷排序：467

文摘

Leaf fossils from the Oligocene Ningming Formation of China were used to reconstruct palaeo-CO2 concentration. A mechanistic-theoretical model and the stomatal ratio method were used in this study. Two angiosperms and one gymnosperm with well-preserved cuticles were considered. The results suggest that CO2 was between 255 and 972 ppmv during the development of the Oligocene Ningming Formation.