中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 南京地质古生物研究所
  3. 中国科学院南京地质古生物研究所
Intensive Wildfire Associated With Volcanism Promoted the Vegetation Changeover in Southwest China During the Permian-Triassic Transition

文献类型：期刊论文

作者Cai, Yao-feng4,5,6; Zhang, Hua5,6; Feng, Zhuo3; Shen, Shu-zhong1,2; Zhang, Hua（张华）
刊名FRONTIERS IN EARTH SCIENCE
出版日期2021-03-04
卷号9页码:15
关键词charcoal δ C-13(org) reflectance volcanism late Permian Southwest China
DOI10.3389/feart.2021.615841
通讯作者Zhang, Hua(hzhang@nigpas.ac.cn)
英文摘要Palaeo-wildfire, which had an important impact on the end Permian terrestrial ecosystems, became more intense in the latest Permian globally, evidenced by extensive occurrence of fossil charcoals. In this study, we report abundant charcoals from the upper part of the Xuanwei Formation and the Permian-Triassic transitional Kayitou Formation in the Lengqinggou section, western Guizhou Province, Southwest China. These charcoals are well-preserved with anatomical structures and can be classified into seven distinctive types according to their characteristics. Organic carbon isotopic analyses of both bulk rocks and charcoals show that the delta C-13(org) values in the Kayitou Formation are notably more negative than those in the Xuanwei Formation, with a negative excursion of 4.08 parts per thousand immediately above the volcanic ash bed in the middle of the uppermost coal bed of the Xuanwei Formation. Charcoals with high reflectance values (Ro(mean) = 2.38%) are discovered below the ash bed. By contrast, the reflectance values (Ro(mean) = 1.51%) of the charcoals in the Kayitou Formation are much lower than those of the Xuanwei Formation, indicating the palaeo-wildfire types have changed from crown fires to surface fires, which was probably due to the retrogression of vegetation systems during the extinction. Based on the above evidence, we suppose that palaeo-wildfires became more frequent and more severe since the climate became drier during the latest Permian in Southwest China, and the eventual vegetation changeover of the terrestrial ecosystems in Southwest China could be caused by volcanism.
资助项目Strategic Priority Research Programs (B) of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Programs (B) of the Chinese Academy of Sciences[XDB18000000] ; National Natural Science Foundation of China[U1702242] ; National Natural Science Foundation of China[41502023] ; CAS[QYZDY-SSW-DQC023]
WOS研究方向Geology
语种英语
WOS记录号WOS:000629757600001
出版者FRONTIERS MEDIA SA
资助机构Strategic Priority Research Programs (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; CAS
源URL[http://ir.nigpas.ac.cn/handle/332004/37930]  
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Hua; Zhang, Hua（张华）
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing, Peoples R China
2.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China
3.Yunnan Univ, Inst Palaeontol, Kunming, Yunnan, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Peoples R China
6.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China
推荐引用方式
GB/T 7714		 Cai, Yao-feng,Zhang, Hua,Feng, Zhuo,et al. Intensive Wildfire Associated With Volcanism Promoted the Vegetation Changeover in Southwest China During the Permian-Triassic Transition[J]. FRONTIERS IN EARTH SCIENCE,2021,9:15.
APA Cai, Yao-feng,Zhang, Hua,Feng, Zhuo,Shen, Shu-zhong,&Zhang, Hua.(2021).Intensive Wildfire Associated With Volcanism Promoted the Vegetation Changeover in Southwest China During the Permian-Triassic Transition.FRONTIERS IN EARTH SCIENCE,9,15.
MLA Cai, Yao-feng,et al."Intensive Wildfire Associated With Volcanism Promoted the Vegetation Changeover in Southwest China During the Permian-Triassic Transition".FRONTIERS IN EARTH SCIENCE 9(2021):15.

入库方式： OAI收割

来源：南京地质古生物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。