气候变化领域集成服务门户(CCPortal): Material Composition of the Newly Discovered Zongzhuo Formation Sedimentary Mélange in Dingri Area, Southern Tibet, and its Constraints on the Basin Controlling Dingri-Gamba Fault

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DOI	10.1111/1755-6724.15170
	Material Composition of the Newly Discovered Zongzhuo Formation Sedimentary Mélange in Dingri Area, Southern Tibet, and its Constraints on the Basin Controlling Dingri-Gamba Fault
	Yan, Songtao; Ding, Ailing; Dai, Xuejian; Li, Hu; Liu, Tao; Zhu, Lidong; Wu, Qingsong
发表日期	2024
ISSN	1000-9515
EISSN	1755-6724
英文摘要	The study of sedimentary m & eacute;langes holds pivotal importance in understanding orogenic processes and unveiling geodynamic mechanisms. In this study, we present findings on zircon U-Pb isotopes and whole-rock elemental data concerning the recently uncovered Zongzhuo Formation sedimentary m & eacute;langes within the Dingri area. Field observations reveal the predominant composition of the Zongzhuo Formation, characterized by a matrix of sandstone-mudstone mixed with sand-conglomerates within native blocks exhibiting soft sediment deformation. Moreover, exotic blocks originating from littoral-neritic seas display evidence of landslide deformation. Our study identifies the depositional environment of the Zongzhuo Formation in Dingri as a slope turbidite fan, with its provenance traced back to the passive continental margin. Notably, this contrasts with the Zongzhuo Formation found in the Jiangzi-Langkazi area. Based on existing data, we conclude that the Zongzhuo Formation in the Dingri area was influenced by the Dingri-Gamba fault and emerged within a fault basin of the passive continental margin due to Neo-Tethys oceanic subduction during the Late Cretaceous period. Its provenance can be attributed to the littoral-neritic sea of the northern Tethys Himalaya region. This study holds significant implications for understanding the tectonic evolution of Tethys Himalaya and for reevaluating the activity of the Dingri-Gamba fault, as it controls the active deposition of the Zongzhuo Formation.
英文关键词	sedimentary m & eacute;lange; provenance analysis; Zongzhuo Formation; Dingri-Gamba fault; Tethys Himalaya
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001225383400001
来源期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297781
作者单位	China Geological Survey; Chengdu University of Information Technology; Chengdu University of Technology; Chengdu University of Technology
推荐引用方式 GB/T 7714	Yan, Songtao,Ding, Ailing,Dai, Xuejian,et al. Material Composition of the Newly Discovered Zongzhuo Formation Sedimentary Mélange in Dingri Area, Southern Tibet, and its Constraints on the Basin Controlling Dingri-Gamba Fault[J],2024.
APA	Yan, Songtao.,Ding, Ailing.,Dai, Xuejian.,Li, Hu.,Liu, Tao.,...&Wu, Qingsong.(2024).Material Composition of the Newly Discovered Zongzhuo Formation Sedimentary Mélange in Dingri Area, Southern Tibet, and its Constraints on the Basin Controlling Dingri-Gamba Fault.ACTA GEOLOGICA SINICA-ENGLISH EDITION.
MLA	Yan, Songtao,et al."Material Composition of the Newly Discovered Zongzhuo Formation Sedimentary Mélange in Dingri Area, Southern Tibet, and its Constraints on the Basin Controlling Dingri-Gamba Fault".ACTA GEOLOGICA SINICA-ENGLISH EDITION (2024).