Terrestrial response to the Early Cretaceous Weissert Event: Insights from carbon isotope records of organic matter and leaf wax n-alkanes in an inland East Asian lake
文献类型：期刊论文
| 作者 | Tong, Xiaoning1,8; Hu, Jianfang1; Pan, Yanhong2; Qin, Zuohuan3; Xi, Dangpeng3; Peng, Ping'an1,7; Algeo, Thomas J.4,5,6 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2024-12-15 |
| 卷号 | 656页码:9 |
| 关键词 | Early Cretaceous Dabeigou Formation 13 C excursion Carbon isotopes Paleoenvironment Paleoclimate |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2024.112570 |
| 英文摘要 | The Weissert Event (WE), a significant Early Cretaceous environmental disruption, is recognized globally in marine carbonate records for its positive carbon isotope excursion (CIE), organic matter (OM) enrichment, and widespread anoxia. However, records of its terrestrial impact are sparse. This study examines carbon isotope compositions (delta 13C) from the lacustrine facies of North China's Dabeigou Formation (Yushuxia section, Luanping Basin). The synchronous positive CIEs of total organic carbon (TOC) and C 27 -C 31 n-alkanes within Members 2 to 3 of the Dabeigou Formation corroborate the Weissert Event, marking its first terrestrial observation in North China. Ratios of the isoprenoids pristane and phytane (Pr/Ph), Corg/P ratios and enrichment factors (EFs) of redox-sensitive trace metals (Mo and U) indicate transient anoxic conditions within a mainly oxic-suboxic setting from the late Valanginian to early Hauterivian, which were unfavorable for OM preservation. This highlights that although a global positive CIE occurred during the Weissert Event, anoxia and/or high TOC deposition in inland lakes were not inherent features. |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001344563400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82067]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Hu, Jianfang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 3.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 4.Univ Cincinnati, Dept Geosci, Cincinnati, OH 45221 USA 5.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 6.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Zhaoqing Univ, Tourism & Histor Culture Coll, Zhaoqing 526061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tong, Xiaoning,Hu, Jianfang,Pan, Yanhong,et al. Terrestrial response to the Early Cretaceous Weissert Event: Insights from carbon isotope records of organic matter and leaf wax n-alkanes in an inland East Asian lake[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,656:9. |
| APA | Tong, Xiaoning.,Hu, Jianfang.,Pan, Yanhong.,Qin, Zuohuan.,Xi, Dangpeng.,...&Algeo, Thomas J..(2024).Terrestrial response to the Early Cretaceous Weissert Event: Insights from carbon isotope records of organic matter and leaf wax n-alkanes in an inland East Asian lake.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,656,9. |
| MLA | Tong, Xiaoning,et al."Terrestrial response to the Early Cretaceous Weissert Event: Insights from carbon isotope records of organic matter and leaf wax n-alkanes in an inland East Asian lake".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 656(2024):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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