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Discovery of Early Devonian strata in northern Qiangtang, Tibet, and the establishment of the Pingshagou Formation

Cheng, Liren, Chen, Shouming, Zhang, Yichun and Cheng, Xin 2009, Discovery of Early Devonian strata in northern Qiangtang, Tibet, and the establishment of the Pingshagou Formation, Journal of stratigraphy, vol. 33, no. 2, pp. 165-168.

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Title Discovery of Early Devonian strata in northern Qiangtang, Tibet, and the establishment of the Pingshagou Formation
Author(s) Cheng, Liren
Chen, Shouming
Zhang, Yichun
Cheng, Xin
Journal name Journal of stratigraphy
Volume number 33
Issue number 2
Start page 165
End page 168
Publisher Kexue Chubanshe
Place of publication Beijing, China
Publication date 2009
ISSN 0253-4959
Keyword(s) Biostratigraphy
bivalve
brachiopods
Pingshangou Formation
Early Devonian
Qiangtang
Tibet
Summary Although it is important to determine whether there exist sedimentary strata older than the Upper Permian in the northern Qiantang area in Tibet, there has been no report of such old strata in this area. During the geological mapping of the Mayigangri area, we discovered strata that contain the bivalves Eoschizodus roemeri (Beushausen), E. minor (Beushausen) , E. infiatus (Roemer), Actinodesma (Actinodesma) cf . maneiforme Sandberger, A . (Actindesma) cf . vespertilio Maurer, and the brachiopod Huananochonetes subquadratus Sun & Chen. These fossils indicate a late Early Devonian age (Emsian) , thus the strata represent the first discovered Lower Devonian rocks in northen Qiangtang, confirming the existence of strata older than the Upper Permian. A new stratigraphic term, the Pingshagou Formation , is introduced. The new data provide constraints on the tectonic, palaeogeographic, and palaeobiogeographic history of the north Qiangtang area in the Early Devonian.
Notes Chinese text with English abstract
Language chi
Field of Research 040399 Geology not elsewhere classified
Socio Economic Objective 970104 Expanding Knowledge in the Earth Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, Kexue Chubanshe
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039470

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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