Stable carbon isotopes and stomatal frequency of Middle Jurassic ginkgophyte fossils from the Turpan basin, northwestern China: Implications for reconstructing paleo-CO2 changes
文献类型：期刊论文
| 作者 | Xiao, Liang1,2,3,4; Liang, Jia-qi3,4; Guo, Li-yan3,4; Ji, De-shuang3,4; Yuan, Man3,4; Li, Xiang-chuan3,4; Sun, Nan3,4; Li, Zuo-chen3,4 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2024 |
| 卷号 | 259页码:9 |
| ISSN号 | 1367-9120 |
| 关键词 | Middle Jurassic Ginkgophyte Sandaoling Coal Mine Stable carbon isotope Paleo -CO 2 concentration |
| DOI | 10.1016/j.jseaes.2023.105938 |
| 通讯作者 | Xiao, Liang(zyxiaol@chd.edu.cn) |
| 英文摘要 | The Jurassic climate change has attracted a great deal of attention from geologists. However, the investigations on the correlation between carbon isotopes of plant fossils and high CO2 levels in the Mesozoic are scarce. In this study, 16 well-preserved fossilized Ginkgoites and Phoenicopsis leaves were selected from the Xishanyao Formation in the Turpan basin. Two chemical protocols were applied for the pretreatment of stable carbon isotopes: HCl reagent and HCl + HF reagents. The average delta 13C values followed the two protocols were -22.8 %o and -22.9 %o, respectively, indicating that HF reagent has no effect on the carbon isotopes of the ginkgophyte fossils. The difference between the delta 13C values of Ginkgoites fossils and Phoenicopsis fossils is obvious, which is mainly caused by distinct carbon isotope fractionation between different plant taxa. However, both values show the same delta 13C trend in the early Middle Jurassic, i.e., increasing and then decreasing with time. In addition, both stomatal index (SI) and stomatal ratio (SR) methods are used to reconstruct paleo-CO2 levels with average values of 2564 ppmv and 1245 ppmv, respectively, indicating that SR method is more reliable. There was weak correlation (R = 0.23) between delta 13C and CO2 values in the early Middle Jurassic which may be due to low response of delta 13C values of ginkgophyte fossils to CO2 changes. Therefore, our work emphasizes the caution on using stable carbon isotopes of ginkgophyte fossils to reconstruct high paleo-CO2 concentrations. |
| WOS关键词 | TREE-RING CELLULOSE ; ATMOSPHERIC CO2 ; C-13/C-12 RATIOS ; REVISED MODEL ; PLANTS ; DELTA-C-13 ; XINJIANG ; DENSITY ; RECORD ; VARIABILITY |
| 资助项目 | National Nature Science Foundation of China[41872017] ; Fundamental Research Funds for the Central Universities[300102272206] ; Fundamental Research Funds for the Central Universities[300102272901] ; Fundamental Research Funds for the Central Universities[300102271402] ; Fundamental Research Funds for the Central Universities[300102262903] ; Foundation of State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[183125] ; Natural Science Basic Research Program in Shaanxi Province of China[2023-JC-YB-223] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:001118990700001 |
| 资助机构 | National Nature Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Foundation of State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; Natural Science Basic Research Program in Shaanxi Province of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/42776]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Xiao, Liang |
| 作者单位 | 1.Northwest Univ, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Changan Univ, Key Lab Western Mineral Resources & Geol, Engn Minist Educ, Xian 710054, Peoples R China 4.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Liang,Liang, Jia-qi,Guo, Li-yan,et al. Stable carbon isotopes and stomatal frequency of Middle Jurassic ginkgophyte fossils from the Turpan basin, northwestern China: Implications for reconstructing paleo-CO2 changes[J]. JOURNAL OF ASIAN EARTH SCIENCES,2024,259:9. |
| APA | Xiao, Liang.,Liang, Jia-qi.,Guo, Li-yan.,Ji, De-shuang.,Yuan, Man.,...&Li, Zuo-chen.(2024).Stable carbon isotopes and stomatal frequency of Middle Jurassic ginkgophyte fossils from the Turpan basin, northwestern China: Implications for reconstructing paleo-CO2 changes.JOURNAL OF ASIAN EARTH SCIENCES,259,9. |
| MLA | Xiao, Liang,et al."Stable carbon isotopes and stomatal frequency of Middle Jurassic ginkgophyte fossils from the Turpan basin, northwestern China: Implications for reconstructing paleo-CO2 changes".JOURNAL OF ASIAN EARTH SCIENCES 259(2024):9. |
入库方式： OAI收割
来源：南京地质古生物研究所
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