Discovery of early paleozoic strata in south of Qiangtang, Northern Tibet and its significance

Cheng, Liren, Chen, Shouming and Zhang, Yichun 2007, Discovery of early paleozoic strata in south of Qiangtang, Northern Tibet and its significance, Earth science-journal of China University of Geosciences, vol. 32, no. 1, pp. 59-62.

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Title Discovery of early paleozoic strata in south of Qiangtang, Northern Tibet and its significance
Author(s) Cheng, Liren
Chen, Shouming
Zhang, Yichun
Journal name Earth science-journal of China University of Geosciences
Volume number 32
Issue number 1
Start page 59
End page 62
Publisher Zhongguo Dizhi Daxue
Place of publication Hubei, China
Publication date 2007
ISSN 1000-2383
Keyword(s) Northern Tibet
Southern Qiangtang
early Paleozoic strata
Summary Due to the lack of fossil evidence, the age of Amugang Group, previously referring to the large area of metamorphic formations developed along the south of Longmucuo-Shuanghu suture in southern Qiangtang area, northern Tibet, has been under heated debate. Some geologists were convinced that the age of metamorphic formations was of Pre-Devonian according to the emergence of nonmetamorphic fossil-beating Devonian in Chasang area, north of the suture. Most geologists believed that its age was of Pre-Sinian. From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian. It is the first time to discover the Early Paleozoic strata based on reliable fossils, which not only provides evidence to its age ascription, classification of the strata and its correlation to adjacent areas but also offers data to lithofacies, palaeogeography and tectonic pattern of studied area.
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
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