豫西太山庙地区大西沟锡矿LA-MC-ICPMS锡石U-Pb年龄及地质意义

被引:6
作者
何玉良 [1 ,2 ]
李开文 [1 ,2 ]
杜保峰 [1 ]
王小娟 [1 ]
李肖龙 [1 ,2 ]
方怀宾 [1 ]
机构
[1] 河南省地质调查院
[2] 河南省金属矿产成矿地质过程与资源利用重点实验室
关键词
大西沟锡矿; 锡石U-Pb年代学; 太山庙; 豫西;
D O I
10.19658/j.issn.1007-2802.2020.39.017
中图分类号
P618.44 [锡];
学科分类号
0709 ; 081803 ;
摘要
为研究豫西太山庙岩体与产于其与熊耳群火山岩外接触带的大西沟锡矿之间的关系,利用LA-MC-ICPMS锡石U-Pb测年方法,对大西沟锡矿进行了年代学研究。结果获得的锡石207Pb/206Pb-238U/206Pb谐和年龄为(122.10±0.71)Ma (MSWD=1.8),该年龄与太山庙岩体的末期岩浆侵位年龄120 Ma相一致,成岩与成矿年龄的一致性表明大西沟锡矿的成矿作用可能主要受控于太山庙岩体的岩浆侵入作用。结合东沟钼矿的形成时代(117~114 Ma)和康达萤石矿的成矿年龄(123±9.1 Ma),认为太山庙岩体周边的成矿作用可能形成于统一的构造岩浆过程,其动力学背景为中国东部中生代120 Ma左右的大规模岩石圈减薄事件。
引用
收藏
页码:319 / 326
页数:8
相关论文
共 36 条
[1]  
豫西地区钼矿床类型、控矿因素与找矿模型研究.[D].白凤军.中国地质大学(北京).2010, 08
[2]  
豫西地区内生金属矿床成矿多样性分析与成矿预测.[D].徐毅.中国地质大学(北京).2008, 08
[3]  
Mo-rich source and protracted crystallization of Late Mesozoic granites in the East Qinling porphyry Mo belt (central China): Constraints from zircon U/Pb ages and Hf-O isotopes.[J].Zhiwei Bao;Mingfu Xiong;Qun Li.Journal of Asian Earth Sciences.2018,
[4]  
Magmatic-hydrothermal evolution of the Donggou porphyry Mo deposit at the southern margin of the North China Craton: Evidence from chemistry of biotite.[J].Chang Jin;Xin-Yu Gao;Wei Terry Chen;Tai-Ping Zhao.Ore Geology Reviews.2018,
[5]  
Distal Pb-Zn-Ag veins associated with the world-class Donggou porphyry Mo deposit; southern North China craton.[J].Zhan-Ke Li;Shi-Jian Bi;Jian-Wei Li;Wen Zhang;David R. Cooke;David Selby.Ore Geology Reviews.2017,
[6]  
Petrogenesis of the early Cretaceous intermediate and felsic intrusions at the southern margin of the North China Craton: Implications for crust–mantle interaction.[J].Xin-Yu Gao;Tai-Ping Zhao;Zhi-Wei Bao;Alexandra Yang Yang.LITHOS.2014,
[7]  
In situ LA-MC-ICP-MS and ID-TIMS U–Pb geochronology of cassiterite in the giant Furong tin deposit; Hunan Province; South China: New constraints on the timing of tin–polymetallic mineralization.[J].Shunda Yuan;Jiantang Peng;Shuang Hao;Huimin Li;Jianzhen Geng;Dongliang Zhang.Ore Geology Reviews.2011, 1
[8]  
Tectonic implications from Re–Os dating of Mesozoic molybdenum deposits in the East Qinling–Dabie orogenic belt.[J].J.W. Mao;G.Q. Xie;F. Bierlein;W.J. Qü;A.D. Du;H.S. Ye;F. Pirajno;H.M. Li;B.J. Guo;Y.F. Li;Z.Q. Yang.Geochimica et Cosmochimica Acta.2008, 18
[9]   A precise U–Pb age on cassiterite from the Xianghualing tin-polymetallic deposit (Hunan, South China) [J].
Shunda Yuan ;
Jiantang Peng ;
Ruizhong Hu ;
Huimin Li ;
Nengping Shen ;
Dongliang Zhang .
Mineralium Deposita, 2008, 43 :375-382
[10]   河南嵩县康达萤石矿Sm-Nd同位素年龄及地质意义 [J].
庞绪成 ;
司媛媛 ;
刘纪峰 ;
董文超 ;
梁贞 .
矿物岩石地球化学通报, 2019, 38 (03) :534-538