Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Jilin University(Earth Science Edition)》 2009-03
Add to Favorite Get Latest Update

Geochemical Tracing by Fluid Inclusions in Ores from the Yangjiaba Polymetallic Ore Field in Lueyang County,Shaanxi Province

ZHAO Fu-feng1,LIU Xian-fan1,ZHU Lai-min2,LU Qiu-xia2,CAI Yong-wen1,CAI Fei-yue1,SONG Xiang-feng11.Institute of Earth Science,Chengdu University of Technology,Chengdu 610059,China2.Department of Geology,Northwest University,Xi'an 710069,China  
Take the Yangjiaba polymetallic ore field in Lueyang County,Shaanxi Province as an example,systematic research of fluid inclusions from the ores indicates that they can be divided into two distinct areas in space: Areas A and B.Area A is featured by single liquid phase while Area B by larger voluminous,primary two-phases inclusions with large gas: liquid ratios.In Area A,the primary gaseous-liquid phase inclusions consist of H2O and their homogeneous temperatures are measured at 184℃.The fluid inclusions in Area B are mainly composed of H2O and C6H6 and their homogeneous temperature are concentrated around 260℃ and 330℃.The homogeneous temperature of the Area B is apparently higher than those measured previously,indicating the involvement of higher temperature,reductive fluids in mineralization.Combined with the consideration of the tectonic settings of the Qinling orogenic belt,and of the analysis of trace and REE elements,it is suggested at the present preliminary stage of study that the H2O-C6H6 fluids might belong to mantle fluid moved upwards via large deep-cut faults by rapid surge during intense tectonic movement.These fluids resulted in crust-mantle superimposed mineralization,being the prelude of intense mineralization in the Qinling orogenic belt.
【Fund】: 国家重点基础研究发展规划项目(2006CB403502);; 国家自然科学基金项目(40773031);; 成都理工大学矿物学岩石学矿床学国家重点(培育)学科
【CateGory Index】: P618.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved