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Palynological stratigraphy of the Late Cretaceous and Cenozoic collision-related conglomerates at Qiabulin, Xigaze, Xizang (Tibet) and its bearing on palaeoenvironmental development
Li Jian-guo (李建国)1; Guo Zhen-yu (郭震宇)1; Batten, David J.2,3; Cai Hua-wei (蔡华伟)1; Zhang Yi-yong (张一勇)1
2010-04-25
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
Volume38Issue:3-4Pages:86-95
Abstract

The stratigraphy, age, depositional environment and correlation of the collision-related variegated sandstone and conglomerate beds exposed along the southern side of the Gangdise Mountains to the north of the Yarlung Zangbo suture in the Xigaze region, Xizang (Tibet) have been much debated. Generally referred to as the Dagzhuka Formation, these beds of great thickness have, until recently, not been reported to contain any convincing fossils. Two distinctly different palynological assemblages, indicating Late Cretaceous and Oligocene-Early Miocene ages respectively, have now been recovered from lithologically distinguishable units of the sedimentary succession at Qiabulin to the west of the town of Xigaze. This means that instead of one stratigraphic unit, as has been generally accepted hitherto, at least two are represented. As a result, the Dagzhuga Formation is considered here to refer only to the Cenozoic deposits and the Qiabulin Formation, previously regarded as a synonym, is resurrected to accommodate the Cretaceous beds. These two formations were juxtaposed by tectonic movements. Our finding indicates that the stratigraphic successions on the southern Laurasian continental margin of Xizang reflect changes from a deep forearc basin through shallow littoral environments to a mountainous landscape during the Late Cretaceous and early Cenozoic. This interpretation compares well with those documented from the Gamba and Tingri districts to the south of the Yarlung Zangbo suture. (C) 2009 Elsevier Ltd. All rights reserved.

KeywordXizang (Tibet) Palynology Cretaceous Cenozoic Stratigraphic Succession Plate Collision Palaeoenvironmental Evolution
DOI10.1016/j.jseaes.2009.10.001
Language英语
WOS KeywordFore-arc Basin ; Margin ; Strata ; Pollen ; Egypt
Funding ProjectChinese Academy of Sciences[KZCX2-YW-QN112] ; Chinese Academy of Sciences[KZCX2-YW-154] ; National Basic Research Program of China[2006CB701403] ; NNSFC[40502003]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000276577300002
Funding OrganizationChinese Academy of Sciences ; National Basic Research Program of China ; NNSFC
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/359
Collection中国科学院南京地质古生物研究所
中国科学院南京地质古生物研究所
其他
Corresponding AuthorLi Jian-guo (李建国)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England
3.Aberystwyth Univ, Inst Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Li Jian-guo ,Guo Zhen-yu ,Batten, David J.,et al. Palynological stratigraphy of the Late Cretaceous and Cenozoic collision-related conglomerates at Qiabulin, Xigaze, Xizang (Tibet) and its bearing on palaeoenvironmental development[J]. JOURNAL OF ASIAN EARTH SCIENCES,2010,38(3-4):86-95.
APA Li Jian-guo ,Guo Zhen-yu ,Batten, David J.,Cai Hua-wei ,&Zhang Yi-yong .(2010).Palynological stratigraphy of the Late Cretaceous and Cenozoic collision-related conglomerates at Qiabulin, Xigaze, Xizang (Tibet) and its bearing on palaeoenvironmental development.JOURNAL OF ASIAN EARTH SCIENCES,38(3-4),86-95.
MLA Li Jian-guo ,et al."Palynological stratigraphy of the Late Cretaceous and Cenozoic collision-related conglomerates at Qiabulin, Xigaze, Xizang (Tibet) and its bearing on palaeoenvironmental development".JOURNAL OF ASIAN EARTH SCIENCES 38.3-4(2010):86-95.
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