典型文献
Lower activity time constraint on the ore-controlling Erdaogou fault in the Qingchengzi orefield of the Liaodong Peninsula,NE China
文献摘要:
The Erdaogou fault,also known as the 101 fault,comprises the most important NE strike component in the ore-controlling system in the Qingchengzi orefield,Liao-dong Peninsula.Due to the poor outcrop conditions in the field,the Erdaogou fault lacks activity time constraint.We demonstrate the constraint activity time of the fault since we observe a lamprophyre that was cut through by the Erdaogou fault in the Taoyuan area,central to the Qing-chengzi orefield.Zircon grains from the lamprophyre dyke exhibit typical oscillatory zoning and yield weighted mean U-Pb age of 223.8±1.1 Ma(MSWD=1.5).The lower activity time limit of the Erdaogou fault is thus first con-strained as 224 Ma or so and is correlated with the crys-tallization age of the Xinling and Shuangdinggou plutons within the orefield.Taking previous mineralization studies into consideration,a Triassic tectonic-magmatism-miner-alization model is approved in the Qingchengzi orefield.
文献关键词:
中图分类号:
作者姓名:
Yan Zhao;Yuewen Feng;Peng Zhang;Linlin Kou;Zhongzhu Yang;Shenghui Li;Wei Wang
作者机构:
Shenyang Center,China Geological Survey,Shenyang 110034,China;Beijing Institute of Exploration Engineering,CGS,Beijing 100083,China;Branch of Non-Ferrous Geological Bureau of Liaoning Province,Dandong 118008,China
文献出处:
引用格式:
[1]Yan Zhao;Yuewen Feng;Peng Zhang;Linlin Kou;Zhongzhu Yang;Shenghui Li;Wei Wang-.Lower activity time constraint on the ore-controlling Erdaogou fault in the Qingchengzi orefield of the Liaodong Peninsula,NE China)[J].地球化学学报(英文版),2022(02):267-274
A类:
Erdaogou,Qingchengzi,orefield,lamprophyre,Taoyuan,chengzi,Xinling,Shuangdinggou
B类:
Lower,activity,constraint,controlling,fault,Liaodong,Peninsula,NE,China,also,known,comprises,most,important,strike,component,system,Due,poor,outcrop,conditions,lacks,We,demonstrate,since,observe,that,was,cut,through,by,area,central,Zircon,grains,from,dyke,exhibit,typical,oscillatory,zoning,yield,weighted,mean,Pb,age,Ma,MSWD,lower,limit,thus,first,strained,correlated,crys,tallization,plutons,within,Taking,previous,mineralization,studies,into,consideration,Triassic,tectonic,magmatism,model,approved
AB值:
0.433573
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