河北地质大学学报2025，Vol.48Issue(4)：1-11,11.DOI:10.13937/j.cnki.hbdzdxxb.2025.04.001
太行山南段石槽铜矿年代学研究及成因初探
Preliminary Study on the Geochronology and Genesis of the Shicao Copper Deposit in the Southern Taihang Mountains
摘要
Abstract
This paper preliminarily explores the metallogenic epoch and genesis of the deposit through the study of zircon U-Pb geochronology,Hf isotopes,and rare earth elements(REEs)in the copper-bearing quartz veins of the Shicao copper deposit,southern of Taihang Mountains.The research shows that the weighted mean age of 818±24 Ma for zircon U-Pb represents the crystallization age of hydrothermal zircon in copper-bearing quartz veins.The εHf(t)values of Hf isotopes range from-0.9 to-5.4,with TDM2 values between 2.0 and 2.4 Ga,average 2.2 Ga.In the Hf isotopic diagram,four data points fall between the 1.8 Ga and 2.5 Ga average crustal evolution lines,indicating the average retention age of the source materials in the crust.Combining regional geology,mining geology and experimental zircon characteristics,this paper suggests that the metallogenic age of the Shicao copper deposit belongs to the Neoproterozoic era.It is speculated that copper-bearing magmatic activity and mineralization processes may have occurred during the"Jixian uplift"phase of the Qingbaikouan Period.关键词
太行山南段/石槽铜矿/含铜石英脉/U-Pb年代学/Hf同位素Key words
southern of Taihang Mountains/Shicao copper deposit/copper-bearing quartz veins/U-Pb geochronology/Hf isotope分类
天文与地球科学引用本文复制引用
刘延凯,李学杰,李莉华,华山,王宇,李新战,赵善美..太行山南段石槽铜矿年代学研究及成因初探[J].河北地质大学学报,2025,48(4):1-11,11.基金项目
河北省自然资源厅地勘专项资金项目(13000023P00F2D410254C) （13000023P00F2D410254C）
