Vegetation and climate during the primary formation of the Songliao Basin, NE China
文献类型：期刊论文
| 作者 | Lin, Miaoqin1; Li, Jianguo3,4; Wu, Yixiao2; Tan, Tan3,4; Xu, Yigang1 |
| 刊名 | CRETACEOUS RESEARCH
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 178页码:10 |
| 关键词 | Palynology Early cretaceous Shahezi formation Oceanic anoxic events Songliao basin |
| ISSN号 | 0195-6671 |
| DOI | 10.1016/j.cretres.2025.106217 |
| 通讯作者 | Li, Jianguo(jgli@nigpas.ac.cn) ; Xu, Yigang(yigangxu@gig.ac.cn) |
| 英文摘要 | The International Continental Scientific Drilling Project (ICDP) in the Songliao Basin that has produced a continuous core of the Lower Cretaceous in 4134.81 m thickness, i.e. the SK-II borehole, provides an exceptional archive for studying tectonic and palaeoenvironmental history of the basin under the Cretaceous greenhouse climate. The Shahezi Formation that consists of the main part of this core, represents the primary basin fills at the syn-rift stage of the Songliao Basin and thus marks its commencement and is crucial for studying the timing and mechanism of this basin's early evolution. The precise age of the Shahezi Formation, however, remains controversial and little is known about the palaeovegetation and palaeoenvironment during its deposition. In this study, plenty of pollen and spores are extracted from core samples near the base of the Shahezi Formation. They are the oldest fossils so-far identified from the SK-II borehole. The high abundance and diversity of Cicatricosisporites, in association with some other fossils as Pilosisporites, indicate a clear early-middle Aptian age for the base of the Shahezi Formation, i.e. the primary formation of the Songliao Basin. The vegetation was overall featured by abundant ferns, common cycads and some bryophytes in the ground storey, alongside conifer trees or shrubs of Pinaceae, Taxodiaceae, Araucariaceae and Cheirolepidiaceae in the upper canopy, with increases of Cheirolepidiaceae and cycads over time. A generally warm and humid tropical to subtropical climate with a trend to be slightly drier was developed, which might be a response of terrestrial ecosystem to the Oceanic Anoxic Event 1a. (c) 2025 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
| WOS关键词 | CRETACEOUS SHAHEZI FORMATION ; ASSEMBLAGES ; BOREHOLE ; BEARING ; SPORES ; PALYNOFLORAS ; EVOLUTION ; DISCOVERY ; POLLEN ; NORTH |
| 资助项目 | Postdoctoral Fellowship Program of CPSF[GZC20232680] ; National Natural Science Foundation of China[42302025] ; National Natural Science Foundation of China[42288201] |
| WOS研究方向 | Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001583543700001 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | Postdoctoral Fellowship Program of CPSF ; National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/45736]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Li, Jianguo; Xu, Yigang |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Deep Earth Proc & Resources, Guangzhou 510640, Peoples R China 2.China Geol Survey, Cent South China Innovat Ctr Geosci, Wuhan Ctr, Wuhan 430205, Peoples R China 3.Univ Chinese Acad Sci, Nanjing 211135, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Miaoqin,Li, Jianguo,Wu, Yixiao,et al. Vegetation and climate during the primary formation of the Songliao Basin, NE China[J]. CRETACEOUS RESEARCH,2026,178:10. |
| APA | Lin, Miaoqin,Li, Jianguo,Wu, Yixiao,Tan, Tan,&Xu, Yigang.(2026).Vegetation and climate during the primary formation of the Songliao Basin, NE China.CRETACEOUS RESEARCH,178,10. |
| MLA | Lin, Miaoqin,et al."Vegetation and climate during the primary formation of the Songliao Basin, NE China".CRETACEOUS RESEARCH 178(2026):10. |
入库方式： OAI收割
来源：南京地质古生物研究所
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