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Sedimentary processes of the Lower Permian Dingjiazhai Formation in the Baoshan Block

文献类型：期刊论文

作者Gao, Biao5,6; Chen, Ji-Tao4,5,6; Yang, Wen-Li5,6; Xin, Hao3,5,6; Wang, Xiang-Dong1,2
刊名PALAEOWORLD
出版日期2024-06-01
卷号33期号:3页码:664-678
关键词Early Permian Baoshan Dingjiazhai Formation glaciogenic deposits sedimentology
ISSN号1871-174X
DOI10.1016/j.palwor.2023.09.005
通讯作者Chen, Ji-Tao(jtchen@nigpas.ac.cn)
英文摘要The Baoshan Block was part of the eastern Cimmerian continent along the northeastern margin of Gondwana during the late Paleozoic, and preserves continuous sedimentary records during the apex of the Early Permian glaciation. Although much work has been carried out on biostratigraphy and paleogeography, detailed sedimentological study of the glacial records in the Baoshan Block has gained little attention, which hampers the understanding of depositional processes along the northeastern margin of Gondwana. Here, we conduct a high -resolution sedimentological study on the Lower Permian Dingjiazhai Formation of the Baoshan Block, with the aim of reconstructing the evolution of sedimentary environments. Six major lithological facies and three facies associations are recognized from the Dongshanpo section. The diamictite facies association is composed of weakly stratified diamictite, stratified diamictite, and massive sandy siltstone facies, which are formed by proglacial outwash debris flows and settling of melt -water plumes. The lenticular gravelly sandstone facies association consists of lenticular gravelly sandstone, thin -bedded siltstone, and homogenous silty mudstone facies, suggesting a distal subaqueous proglacial offshore setting with episodic melt water plumes. The bioclastic rudstone facies association comprises of bioclastic rudstone and floatstone, and thin -bedded siltstone facies, which suggest an offshore depositional environment punctuated by bioclastic gravity flows. Accordingly, we reconstructed a gradually changed sedimentary model responding to the Early Permian deglaciation in the Baoshan Block, which probably represents a typical evolution of sedimentary environments along the northeastern margin of Gondwana during the Early Permian. (c) 2023 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
WOS关键词DEPOSITIONAL-ENVIRONMENTS ; FLOW DEPOSITS ; PARANA BASIN ; DEBRIS-FLOW ; GONDWANA-AFFINITY ; GRAVITY FLOW ; SOUTH-AFRICA ; SAN-JUAN ; STRATIGRAPHY ; DIAMICTITES
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[42293280] ; National Natural Science Foundation of China[42202117]
WOS研究方向Paleontology
语种英语
WOS记录号WOS:001258630500001
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.nigpas.ac.cn/handle/332004/43906]  
专题中国科学院南京地质古生物研究所
通讯作者Chen, Ji-Tao
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China
2.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Nanjing Coll, Nanjing 211135, Peoples R China
5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Biao,Chen, Ji-Tao,Yang, Wen-Li,et al. Sedimentary processes of the Lower Permian Dingjiazhai Formation in the Baoshan Block[J]. PALAEOWORLD,2024,33(3):664-678.
APA Gao, Biao,Chen, Ji-Tao,Yang, Wen-Li,Xin, Hao,&Wang, Xiang-Dong.(2024).Sedimentary processes of the Lower Permian Dingjiazhai Formation in the Baoshan Block.PALAEOWORLD,33(3),664-678.
MLA Gao, Biao,et al."Sedimentary processes of the Lower Permian Dingjiazhai Formation in the Baoshan Block".PALAEOWORLD 33.3(2024):664-678.

入库方式： OAI收割

来源：南京地质古生物研究所

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