Sedimentology and ichnology of the Xiaxishancun Formation of Qujing, Yunnan: Earliest Devonian marginal-marine environments and ecosystems in South China
文献类型：期刊论文
| 作者 | Wang, Jia-Shu4; Zhang, Li-Jun3; Huang, Pu2 ; Liu, Lu1; Xue, Jin-Zhuang4
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| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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| 出版日期 | 2024-08-01 |
| 卷号 | 647页码:29 |
| 关键词 | Trace fossil Hyperpycnal flow Subaqueous delta Lower Devonian South China |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2024.112220 |
| 通讯作者 | Zhang, Li-Jun(ljzhanghpu@gmail.com) ; Xue, Jin-Zhuang(pkuxue@pku.edu.cn) |
| 英文摘要 | The Silurian-Devonian transition experienced dramatic changes of climates, global carbon cycles and faunas, but detailed documentation of the environments and biotas during this transitional interval in the South China Block is needed. The upper Silurian-Lower Devonian sequence of Qujing, Yunnan, southwestern China, represents one of the rare stratigraphic records of this transition in the South China Block. In this study, the Xiaxishancun Formation of Qujing, a unit generally considered earliest Devonian in age, is studied in terms of sedimentology and ichnology. The results show that the Xiaxishancun Formation typically records the deposition of hyperpycnal flow systems, which have been rarely reported in the Paleozoic. Three facies associations, including mudstonedominated association, heterolithic association, and sandstone-dominated association, represent different parts of the channels and lobes of hyperpycnal subaqueous deltas on the shelf. Nineteen ichnogenera and 32 ichnospecies were distinguished in the Xiaxishancun Formation, and grouped into two ichnoassemblages, the LockeiaPtychoplasma-Oravaichnium ichnoassemblage in hummocky/swaley cross-stratified sandstones, and the CruzianaDiplichnites-Monomorphichnus ichnoassemblage in thin rippled sandstone beds. The hyperpycnal depositional processes of the Xiaxishancun Formation created nutrient-rich, oxygen-rich, siliciclastic environments that supported diverse benthic ecosystems. Our study provides new insights into the understanding of marginalmarine environments and biotas of South China, immediately following the Silurian-Devonian transition event. |
| WOS关键词 | WHITE-INYO MOUNTAINS ; TRACE FOSSILS ; INTEGRATIVE STRATIGRAPHY ; DEPOSITIONAL MODEL ; LATE ORDOVICIAN ; HORSESHOE-CRAB ; NEW-YORK ; SP-NOV ; BOUNDARY ; SEDIMENTATION |
| 资助项目 | National Key Research and Development Program of China[2022YFF0800200] ; Natural Science Foundation of China[41602112] ; Natural Science Foundation of China[41290260] ; Program for Innovative Research Team (in Science and Technology) of Henan Polytechnic University[T2022-5] |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001240532800001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of China ; Program for Innovative Research Team (in Science and Technology) of Henan Polytechnic University |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/43839]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Zhang, Li-Jun; Xue, Jin-Zhuang |
| 作者单位 | 1.Natl Nat Hist Museum China, Beijing 100050, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 3.Henan Polytech Univ, Sch Resources & Environm, Henan Int Joint Lab Biogen Traces & Sedimentary Mi, Jiaozuo 454003, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jia-Shu,Zhang, Li-Jun,Huang, Pu,et al. Sedimentology and ichnology of the Xiaxishancun Formation of Qujing, Yunnan: Earliest Devonian marginal-marine environments and ecosystems in South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,647:29. |
| APA | Wang, Jia-Shu,Zhang, Li-Jun,Huang, Pu,Liu, Lu,&Xue, Jin-Zhuang.(2024).Sedimentology and ichnology of the Xiaxishancun Formation of Qujing, Yunnan: Earliest Devonian marginal-marine environments and ecosystems in South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,647,29. |
| MLA | Wang, Jia-Shu,et al."Sedimentology and ichnology of the Xiaxishancun Formation of Qujing, Yunnan: Earliest Devonian marginal-marine environments and ecosystems in South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 647(2024):29. |
入库方式： OAI收割
来源：南京地质古生物研究所
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