兰州大学机构库
Paleozoic rapid denudation of the Proterozoic Jinchuan Ni-Cu-PGE sulfide deposit, NW China: Insights from single-grain zircon (U-Th)/He thermochronology
Cai, Qingsong1; Fan, Yuxin1,2; Yan, Xueyu1; Wang, Ying3; Gao, Minmin1; Yang, Guangliang1; Zhang, Mingjie1; Bi, Ke1; Zhang, Hongfu4; Li, Xiaohu5,6
2023-10-01
Online publication date2023-06
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES   Impact Factor & Quartile
ISSN1367-9120 ; 1878-5786
Volume255
page numbers9
AbstractThe Proterozoic Jinchuan Ni-Cu-PGE sulfide deposit is one of the three largest magmatic sulfide deposits on the earth which was formed in either the Mesoproterozoic or Neoproterozoic. After mineralization of the giant Jinchuan Ni-Cu-PGE orebody, orogenic movements occurred frequently and strongly in a large-scale area. However, less is known on how the deposit denudated after mineralization yet. In this study, we report a new finding of the rapid uplift and denudation event during Late Paleozoic which is supported by single-grain zircon (U-Th)/He dating of 7 samples with elevations ranging between 1453 m and 2180 m collected from a vertical profile in the Jinchuan area. The numerical dating results cluster within 341.08 & PLUSMN; 14.63 - 262.60 +/- 29.10 Ma for 7 samples with elevations ranging between 2180 and 1453 m, and 154.74 & PLUSMN; 11.54 Ma for the lherzolite with elevation of 1220 m. Confined with the published 40Ar-39Ar data, the inverse modelling results support that the Jinchuan deposit underwent a rapid cooling at similar to 320 Ma. The numerical dating and inverse modelling results obtained in this study support that the Jinchuan deposit and adjacent area experienced a rapid uplift during 341 - 262 Ma (Late Paleozoic). The rapid denudation during the Late Paleozoic is likely a response to the southward subduction of the Paleo-Asian Ocean, inferred from the regional orogenic movements and magmatism in the adjacent areas. Besides, the zircon (U-Th)/He age of 154.74 +/- 11.54 Ma obtained from lherzolite supports a cooling event which is to be further studied.
KeywordRapid denudation Single-grain Zircon (U-Th) He thermochronology Jinchuan Ni-Cu-PGE sulfide deposit
PublisherPERGAMON-ELSEVIER SCIENCE LTD
DOI10.1016/j.jseaes.2023.105762
Indexed BySCIE
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:001029814200001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568630
Collection兰州大学
Corresponding AuthorFan, Yuxin
Affiliation
1.Lanzhou Univ, Sch Earth Sci, Key Lab Mineral Resources Western China Gansu Prov, Lanzhou 730000, Peoples R China;
2.Nanjing Normal Univ, Coll Marine Sci & Engn, Nanjing 210023, Peoples R China;
3.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China;
4.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China;
5.Minist Nat Resources, Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China;
6.Minist Nat Resources, Inst Oceanog 2, Hangzhou 310012, Peoples R China
Recommended Citation
GB/T 7714
Cai, Qingsong,Fan, Yuxin,Yan, Xueyu,et al. Paleozoic rapid denudation of the Proterozoic Jinchuan Ni-Cu-PGE sulfide deposit, NW China: Insights from single-grain zircon (U-Th)/He thermochronology[J]. JOURNAL OF ASIAN EARTH SCIENCES,2023,255.
APA Cai, Qingsong.,Fan, Yuxin.,Yan, Xueyu.,Wang, Ying.,Gao, Minmin.,...&Li, Xiaohu.(2023).Paleozoic rapid denudation of the Proterozoic Jinchuan Ni-Cu-PGE sulfide deposit, NW China: Insights from single-grain zircon (U-Th)/He thermochronology.JOURNAL OF ASIAN EARTH SCIENCES,255.
MLA Cai, Qingsong,et al."Paleozoic rapid denudation of the Proterozoic Jinchuan Ni-Cu-PGE sulfide deposit, NW China: Insights from single-grain zircon (U-Th)/He thermochronology".JOURNAL OF ASIAN EARTH SCIENCES 255(2023).
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