地质学报Issue(4)：704-715,12.
骑田岭芙蓉锡矿的成岩和成矿物质来源：锆石Lu-Hf 同位素和矿物包裹体He-Ar同位素证据
Diagenetic and Metallogenic Sources of Furong Tin Deposit,Qitianling:Constraints from Lu-Hf for Zircon and He-Ar Isotope for Fluid Inclusions
摘要
Abstract
Determination of zircon U-Pb isotopic date and Lu-Hf isotopic composition of various granitoids in the Qitianling plutons,south China show,there are two-staged granites:the earlier hornblende granitite with 160.0 ±2.7 Ma of zircon U-Pb concordant age and the later granitite with 156.5 ±1.8 Ma of zircon U-Pb concordant age.Metamietimation of zircons appear in the later mineralizing granitite,those zircon is intensively riched in LREE,U and Th,and characteristics of hydrothermal zircon.Lu-Hf isotopic compositions of zircons from four granites show that diagenetic substance are derived from the lower crust, which original magmas were resulted from partial melting of the lower crust in the palaeo-Proterzoic(1 .3~1 .5 Ga),with some mantle substance adding.He-Ar isotopic compositions for fluid inclusions of pyrite and garnet from the Qitianling Furong tin deposit also show a lower ratio of 3 He/4 He(0.059~0.432), which ranges from those between the crust and mantle, suggests mantle fluids are involved in mineralization for the deposit (less than 10% for the amount).关键词
骑田岭花岗岩/锆石Lu-Hf同位素/包裹体He-Ar同位素/地幔流体Key words
Qitianling granites/zircon Lu-Hf isotope/He-Ar isotope for fluid inclusions/mantle fluid引用本文复制引用
单强,曾乔松,李建康,卢焕章,侯茂洲,于学元,吴传军..骑田岭芙蓉锡矿的成岩和成矿物质来源：锆石Lu-Hf 同位素和矿物包裹体He-Ar同位素证据[J].地质学报,2014,(4):704-715,12.基金项目
本文为国家“深部探测技术与实验研究专项（SinoProbe）”第三项目“深部矿产资源立体探测技术及实验研究”第一课题（编号SinoProbe-03-01）资助的成果。 （）
