NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Stratigraphic and sedimentary characteristics of the Upper Jurassic-Lower Cretaceous strata in the Junggar Basin, Central Asia: Tectonic and climate implications
Fang, Yanan (房亚南)1,2; Wu, Chaodong2,3; Wang, Yizhe2; Wang, Luxin4; Guo, Zhaojie2,3; Hu, Hanwen2
2016-11-01
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
Volume129Pages:294-308
Abstract

The Junggar Basin, located in northwestern China, provides important records for investigating Mesozoic tectonic and climate evolution in Central Asia. The Upper Jurassic-lowermost Cretaceous strata in the basin include the Qigu, Kalazha, and Qingshuihe Formations in ascending order. By synthesizing outcrop and well data and previous research, we conducted a detailed sedimentologic and stratigraphic correlation analysis for the three formations. Our study shows that a sharp lithofacies change from intermittent braided-river red fine-grained sediments of the Qigu Formation to alluvial fan conglomerates of the Kalazha Formation, is widespread along the basin margins. From bottom to top, the Kalazha alluvial fan conglomerates can be divided into six sequences showing a progradation to retrogradation cycle, and they finally retrograde into the lake sediments of the lowermost Cretaceous Qingshuihe Formation. However, within the Junggar Basin, the Kalazha Formation is commonly considered to be absent and the Qingshuihe Formation possesses a basal fluvial coarse-grained sandstone bed (50100 m), beneath which a widespread unconformity is observed. Stratigraphic correlation suggests that the alluvial fan conglomerates of the Kalazha Formation along the basin margins are equivalent to the basal sandstone bed of the Qingshuihe Formation within the basin. Finally, we conclude that progressive tectonic uplift and climate aridification occurred in the Junggar Basin during deposition of the Qigu Formation in the Late Jurassic, while the basin began to experience a relatively humid climate and underwent rapid subsidence during deposition of the Kalazha Formation in the latest Jurassic-earliest Cretaceous, probably driven by the far-field effects of the short-lived but significant Mongol-Okhotsk collisional orogeny. (C) 2016 Elsevier Ltd. All rights reserved.

KeywordKalazha Formation Alluvial Fan Conglomerate Sedimentary Hiatus Depositional Environment Stratigraphic Correlation
DOI10.1016/j.jseaes.2016.09.001
Language英语
WOS KeywordDetrital Zircon Geochronology ; Northern Tien-shan ; Northwest China ; Nw China ; Tarim Basin ; Tian-shan ; Intracontinental Deformation ; Accretionary Orogenesis ; Continental Growth ; Autonomous Region
Funding ProjectState Science and Technology Major Project[2011ZX05009001]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000390076200020
Funding OrganizationState Science and Technology Major Project
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/12766
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
Corresponding AuthorWu, Chaodong
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Peoples R China
2.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China
3.Peking Univ, Inst Oil & Gas, Beijing 100871, Peoples R China
4.MLR, Strateg Res Ctr Oil & Gas Resources, Beijing 100034, Peoples R China
Recommended Citation
GB/T 7714
Fang, Yanan ,Wu, Chaodong,Wang, Yizhe,et al. Stratigraphic and sedimentary characteristics of the Upper Jurassic-Lower Cretaceous strata in the Junggar Basin, Central Asia: Tectonic and climate implications[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,129:294-308.
APA Fang, Yanan ,Wu, Chaodong,Wang, Yizhe,Wang, Luxin,Guo, Zhaojie,&Hu, Hanwen.(2016).Stratigraphic and sedimentary characteristics of the Upper Jurassic-Lower Cretaceous strata in the Junggar Basin, Central Asia: Tectonic and climate implications.JOURNAL OF ASIAN EARTH SCIENCES,129,294-308.
MLA Fang, Yanan ,et al."Stratigraphic and sedimentary characteristics of the Upper Jurassic-Lower Cretaceous strata in the Junggar Basin, Central Asia: Tectonic and climate implications".JOURNAL OF ASIAN EARTH SCIENCES 129(2016):294-308.
Files in This Item:
File Name/Size DocType Version Access License
Stratigraphic and se(11272KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fang, Yanan (房亚南)]'s Articles
[Wu, Chaodong]'s Articles
[Wang, Yizhe]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fang, Yanan (房亚南)]'s Articles
[Wu, Chaodong]'s Articles
[Wang, Yizhe]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fang, Yanan (房亚南)]'s Articles
[Wu, Chaodong]'s Articles
[Wang, Yizhe]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.