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The Late Paleocene-Eocene Extension and Differential Denudation in the Eastern Daqingshan Mountains Around the Northeastern Margin of the Ordos Block, Western North China Craton, Constrained by Apatite (U-Th)/He Thermochronology

文献类型：期刊论文

作者Feng, Lixia1; Han, Baofu2; Wu, Lin5; Han, Zhongpeng4; Zhang, Jiawei3; Liu, Mei1
刊名LITHOSPHERE
出版日期2023-07-01
卷号2023页码:17
ISSN号1941-8264
DOI10.2113/2023/lithosphere_2023_166
英文摘要The initial timing of extension during the Cenozoic around the northeastern margin of the Ordos Block, western North China Craton (NCC), is still poorly constrained. Apatite (U-Th)/He low-temperature thermochronology was thus applied on eight pre-Cenozoic granitic and gneissic samples transecting the eastern Daqingshan Mountains, northeastern margin of the Ordos Block, to investigate the denudation and cooling event related to the onset of extension therein. Four mean corrected AHe ages in the southern part are overlapped within the standard deviations of 50.0 +/- 0.4 to 45.0 +/- 8.0 Ma. However, three mean corrected AHe ages in the northern part are prominently older of 99.2 +/- 11.0 to 86.6 +/- 17.1 Ma, with the rest one of 56.1 +/- 8.6 Ma. Altogether, they show a younger-older-younger-older pattern along the transect correlated with the normal faults. AHe thermal history modeling results further demonstrate extensive cooling during the Late Cretaceous but differential cooling during the Late Paleocene-Eocene. The Late Cretaceous extensive cooling in the eastern Daqingshan Mountains, as well as the contemporaneous deposition hiatus in both the eastern Daqingshan Mountains and the Hohhot Depression, together indicates overall denudation in the northeastern margin of the Ordos Block at that time. The Late Paleocene-Eocene differential cooling is probably induced by the tilting of the eastern Daqingshan Mountains as a result of the extension suggested by the distribution of AHe ages. It corresponds to the syn-tectonic subsidence in the Hohhot Depression, indicating a basin-mountain coupling. Regional comparative analysis manifests similar extension around the Ordos Block and more widely across the NCC during the Late Paleocene-Eocene. Temporally, kinematically, and dynamically coupled with this regional extension event, the subduction of the Izanagi-Pacific plate probably plays a major role. However, the contribution of the India-Asia collision could not be ignored.
WOS关键词METAMORPHIC CORE COMPLEX ; CRETACEOUS-CENOZOIC EXHUMATION ; FISSION-TRACK EVIDENCE ; INNER-MONGOLIA ; TECTONIC EVOLUTION ; TAIHANG MOUNTAINS ; RADIATION-DAMAGE ; DETACHMENT FAULT ; TIBETAN PLATEAU ; THRUST BELT
资助项目Sichuan Elementary Education Research Centre[20SZSJYZ-04] ; Sichuan Science and Technology Program[2022NSFSC1022] ; Talent Introduction Project of Xi Hua University[RZ2000002858]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
出版者GEOSCIENCEWORLD
WOS记录号WOS:001081777600001
资助机构Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Elementary Education Research Centre ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Sichuan Science and Technology Program ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University ; Talent Introduction Project of Xi Hua University
源URL[http://ir.iggcas.ac.cn/handle/132A11/110750]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wu, Lin
作者单位1.Xihua Univ, Sch Emergency Sci, Chengdu 610039, Peoples R China
2.Peking Univ, Sch Earth & Space Sci, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
3.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
4.China Univ Geosci, Inst Earth Sci, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Lixia,Han, Baofu,Wu, Lin,et al. The Late Paleocene-Eocene Extension and Differential Denudation in the Eastern Daqingshan Mountains Around the Northeastern Margin of the Ordos Block, Western North China Craton, Constrained by Apatite (U-Th)/He Thermochronology[J]. LITHOSPHERE,2023,2023:17.
APA Feng, Lixia,Han, Baofu,Wu, Lin,Han, Zhongpeng,Zhang, Jiawei,&Liu, Mei.(2023).The Late Paleocene-Eocene Extension and Differential Denudation in the Eastern Daqingshan Mountains Around the Northeastern Margin of the Ordos Block, Western North China Craton, Constrained by Apatite (U-Th)/He Thermochronology.LITHOSPHERE,2023,17.
MLA Feng, Lixia,et al."The Late Paleocene-Eocene Extension and Differential Denudation in the Eastern Daqingshan Mountains Around the Northeastern Margin of the Ordos Block, Western North China Craton, Constrained by Apatite (U-Th)/He Thermochronology".LITHOSPHERE 2023(2023):17.

入库方式： OAI收割

来源：地质与地球物理研究所

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