KMS Nanjing Institute of Geology and Palaeonotology,CAS
A nearshore-offshore trend in acritarch distribution from the early-middle ordovician of the Yangtze platfonn, south China | |
Li, Jun (李军); Servais, T; Yan, K (燕夔); Zhu, HC (朱怀诚) | |
2004-07-01 | |
发表期刊 | REVIEW OF PALAEOBOTANY AND PALYNOLOGY |
ISSN | 0034-6667 |
卷号 | 130期号:1-4页码:141-161 |
摘要 | The stratigraphical interval of the late Early Ordovician Didymograptus deflexus and the early Middle Ordovician Azygograptus suecicus graptolite Biozones was investigated from seven sections from the upper Yangtze Platform, southern China. These are located on different parts of the platform, between the nearshore environments of the Kunming area, Yunnan Province, and the offshore carbonate shelf of the Yichang area, Hubei Province. The assemblages recovered from the different parts of the platform vary both in terms of diversity and composition. The nearshore environments show low diversity assemblages with about 10 acritarch species, whereas the offshore shelf environments reflect higher diversities with about 40 species. The composition of the assemblages also changes from simple morphologies (micrhystrids, leiosphaerids, fusiform acritarchs) in nearshore environments to specimens with longer and more complexly branched processes on the shelf. The polygonomorph acritarchs are common over all the upper Yantze Platform, while the acanthomorph genera Baltisphaeridium and Peteinosphaeridium are the most abundant taxa on the offshore carbonate shelf area. Phylogenetic or sea-level changes are probably not responsible for the compositional and diversity changes that occurred during the investigated interval. This study confirms previous interpretations that poorly diversified Palaeozoic acritarch assemblages occur in neritic environments and more complex, highly diversified assemblages are found on the shelf (C) 2004 Elsevier B.V. All rights reserved. |
关键词 | Acritarchs Microphytoplankton Palaeoecology Ordovician Yangtze Platform China |
DOI | 10.1016/j.revpalbo.2003.12.005 |
语种 | 英语 |
关键词[WOS] | Province ; Microphytoplankton ; Section ; Arenig |
WOS研究方向 | Plant Sciences ; Paleontology |
WOS类目 | Plant Sciences ; Paleontology |
WOS记录号 | WOS:000222435300008 |
出版者 | ELSEVIER SCIENCE BV |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/979 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Zhu, HC (朱怀诚) |
作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.USTL, CNRS, UMR 8014, Lab Paleontol & Paleogeog Paleozo LP3, F-59655 Villeneuve Dascq, France 3.USTL, CNRS, FR 1818, F-59655 Villeneuve Dascq, France 4.State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Jun ,Servais, T,Yan, K ,et al. A nearshore-offshore trend in acritarch distribution from the early-middle ordovician of the Yangtze platfonn, south China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2004,130(1-4):141-161. |
APA | Li, Jun ,Servais, T,Yan, K ,&Zhu, HC .(2004).A nearshore-offshore trend in acritarch distribution from the early-middle ordovician of the Yangtze platfonn, south China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,130(1-4),141-161. |
MLA | Li, Jun ,et al."A nearshore-offshore trend in acritarch distribution from the early-middle ordovician of the Yangtze platfonn, south China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 130.1-4(2004):141-161. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 |
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。
修改评论