Report of the restudy of the defined global stratotype of the base of the Silurian System
Rong, Jiayu (戎嘉余)1; Melchin, Michael2; Williams, S. Henry3; Koren, Taryana N.4; Verniers, Jacques5
2008-09-01
发表期刊EPISODES
ISSN0705-3797
卷号31期号:3页码:315-318
摘要

The Global Stratotype Section and Point (GSSP) for the base of the Silurian System was defined in 1985. Since that time, a number of researchers have suggested that this section has serious deficiencies for use as a GSSP. As a result, in 2000, the Subcommission Silurian Stratigraphy (SSS) proposed undertaking a formal restudy of this GSSP, which was subsequently approved by the International Commission of Stratigraphy (ICS). The result of this restudy was the formal proposal that the current GSSP, at 1.6 m above the base of the Birkhill Shale, at Dob's Linn, Scotland, should be maintained as the same locality and stratigraphic level, but the biostratigraphical definition of the boundary should be revised. The previously defined, basal Silurian graptolite zone, the Parakidograptus acuminatus Zone, should be subdivided into lower Akidograptus ascensus Zone and a higher P. acuminatus Zone. The base of the A. ascensus Zone, marked by the first appearance of A. Ascensus, should be regarded as the biostratigraphic mark for the base of the Silurian. The proposal has now been formally approved by the SSS and ICS, and ratified by International Union of Geological Sciences. This is the first GSSP to undergo formal restudy and redefiniton and the proposal also included a recommended procedure for restudy of GSSPs.

语种英语
关键词[WOS]Dobs Linn ; Ordovician ; Graptolite ; Boundary ; Fauna ; Biostratigraphy ; Scotland
资助项目Chinese Academy of Sciences[KZCX3-SW-149] ; Ministry of Science and Technology, China[2006CBS06400] ; Natural Sciences and Engineering, Research Council of Canada
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000260602600005
项目资助者Chinese Academy of Sciences ; Ministry of Science and Technology, China ; Natural Sciences and Engineering, Research Council of Canada
出版者INT UNION GEOLOGICAL SCIENCES
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/131
专题中国科学院南京地质古生物研究所
其他
通讯作者Rong, Jiayu (戎嘉余)
作者单位1.Chinese Acad Sci, SKL, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.St Francis Xavier Univ, Dept Geol, Antigonish, NS B2G 2W5, Canada
3.PetroCanada Oil & Gas, Calgary, AB T2P 3E3, Canada
4.All Russian Geol Res Inst VSEGEI, St Petersburg 199026, Russia
5.Univ Ghent, Res Unit Palaeontol, B-2000 Antwerp, Belgium
推荐引用方式
GB/T 7714
Rong, Jiayu ,Melchin, Michael,Williams, S. Henry,et al. Report of the restudy of the defined global stratotype of the base of the Silurian System[J]. EPISODES,2008,31(3):315-318.
APA Rong, Jiayu ,Melchin, Michael,Williams, S. Henry,Koren, Taryana N.,&Verniers, Jacques.(2008).Report of the restudy of the defined global stratotype of the base of the Silurian System.EPISODES,31(3),315-318.
MLA Rong, Jiayu ,et al."Report of the restudy of the defined global stratotype of the base of the Silurian System".EPISODES 31.3(2008):315-318.
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