Discovery of the Early Ordovician strata in Xianza County, Tibet and its significance

Cheng, Liren, Zhang, Yichun and Zhang, Yujie 2005, Discovery of the Early Ordovician strata in Xianza County, Tibet and its significance, Journal of stratigraphy, vol. 29, no. 1, pp. 38-41.

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Title Discovery of the Early Ordovician strata in Xianza County, Tibet and its significance
Author(s) Cheng, Liren
Zhang, Yichun
Zhang, Yujie
Journal name Journal of stratigraphy
Volume number 29
Issue number 1
Start page 38
End page 41
Publisher Kexue Chubanshe
Place of publication Beijing, China
Publication date 2005
ISSN 0253-4959
Summary There is no any sediments contain fossils which formed earlier than Middle Ordovician in northern Tibet yet. It is very important whether have developed the Cambrian to Early Ordovician sedimentary strata. During geological mapping of Xainza County in 2000, Tetragraptus approximatus, the typical one of graptolite belts which cosmepolitically distributed in the Arenigian of Early Ordovician, was collected from the so-call Pre-Sinian Nianqingtanggula Group. So there is developped the Early Ordovician sediments and we have established Zakang Formation and Taduo Formation which perfected the Plaeozoic sequences in northern Tibet. According to these, we can realize tectonic control, palaeogeographrc pattern as well as palaeobiogeographic distribution of the Qinghai-Tibet Plateau in the early Paleozoic and also provided the materials to the cosmepolitical biostratigraphic contrast.
Notes Chinese language with English abstract
Language chi
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Kexue Chubanshe
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