Pre-Hirnantian Ashgill climatically warm event in the Mediterranean region
Boucot, AJ; Jia-Yu, R (戎嘉余); Xu, Chen (陈旭); Scotese, CR
2003
发表期刊LETHAIA
ISSN0024-1164
卷号36期号:2页码:119-131
摘要

Compilation of the marine, benthic megafossils from approximately the mid-Ashgill of the Mediterranean region, including much of Central and Southern Europe plus North Africa, and elsewhere indicates a warm interval featuring bioclastic limestone and a warm climate marine fauna. These mid-Ashgill faunas immediately precede the latest Ashgillian, Hirnantian, cool interval that featured widespread glaciation, and are underlain by typical, cold water, Mediterranean Realm, older Ordovician rocks and faunas. The cause or causes responsible for the brief warm interval are uncertain, but may have involved a warm water gateway that is geographically still not located. There is a possibility that South Africa was similarly affected by this roughly mid-Ashgillian marine situation. Early Paleozoic bauxite minerals and kaolins in northwestern Sudan and kaolins elsewhere in North Africa may represent the same time interval, which would suggest that there was a non-marine amelioration of the local climate as well as the marine effects.

关键词Ashgill Brachiopods Mediterranean Region Warm Event
DOI10.1080/00241160310001245
语种英语
关键词[WOS]Foliomena Brachiopod Fauna ; Late Ordovician ; South China ; Caradoc ; Africa ; Spain
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000183313300005
出版者TAYLOR & FRANCIS AS
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/1174
专题中国科学院南京地质古生物研究所
其他
通讯作者Boucot, AJ
作者单位1.Oregon State Univ, Dept Zool, Corvallis, OR 97331 USA
2.Univ Texas, Dept Geol, Arlington, TX 76019 USA
3.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
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GB/T 7714
Boucot, AJ,Jia-Yu, R ,Xu, Chen ,et al. Pre-Hirnantian Ashgill climatically warm event in the Mediterranean region[J]. LETHAIA,2003,36(2):119-131.
APA Boucot, AJ,Jia-Yu, R ,Xu, Chen ,&Scotese, CR.(2003).Pre-Hirnantian Ashgill climatically warm event in the Mediterranean region.LETHAIA,36(2),119-131.
MLA Boucot, AJ,et al."Pre-Hirnantian Ashgill climatically warm event in the Mediterranean region".LETHAIA 36.2(2003):119-131.
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