中文摘要：

针对流口金矿黄铁矿成因矿物学研究表明金矿元素组合以Co,Ni,Bi,Cu,Mo,Sn,Ti,Cr为特征,δFe-δS,δFe/δS-As,（Fe＋S）-As,Co-Ni-As等成因标型表明为岩浆热液型金矿。黄铁矿矿体部位元素图解和晶胞参数显示出该矿为中深成矿床,热电性显示成矿温度为中高温。硫同位素值为7.0‰～7.9‰,平均值为7.4‰,数值集中,显示硫的来源单一。Pb同位素206Pb/204Pb值为16.395～16.703,207Pb/204Pb值为15.261～15.395,208Pb/204Pb值为37.364～37.958,在显示为深成的下地壳铅。D-O同位素显示本矿热液为岩浆水和大气水的混合,C-O同位素表明本矿C源主要是花岗岩,其次有部分海相碳酸盐通过溶解作用混入的C源。综上可知,本矿是中深成、中高温岩浆热液型金矿,与石英脉和蚀变岩型金矿具有显著差别。

英文摘要：

The quartz vein type Liukou gold deposit in the southern Qixia-Penglai gold belt occurred in the aplite.In this paper,the typomorphic characteristics of pyrite,S,Pb,H-O,C-O isotope data of Liukou gold deposit are studied and compared with the Majiayao,Rushan,Sanshandao,Linglong and Jiaojia gold deposits.Based on the parameters of δFe-δS,δFe/δS-As and（Fe＋S）-As,it is showed that Liukou is a magmatic hydrothermal gold deposit with the element assembles of Co,Ni,Bi,Cu,Mo,Sn,Ti and Cr and the geochemistry elements and crystal structure indicated that the ore-forming materials result from deep part of the earth.Analysis of themoelectricity of pyrite reveals middle to high ore-forming temperature.The variation of S isotope is small,ranging from 7.0‰ to 7.9‰,average 7.4%,similar to those of the Jiaodong gold field.Pb isotope varies slightly and the 206Pb/204Pb,207Pb/204Pb and 208Pb/204Pb ratios are 16.395~16.703,15.261~15.395 and 37.364~37.958,respectively,similar to those in the Majiayao gold deposit.These data are plotted near the lower crust setting of the Zartman and Haines（1988） model.The D-O isotope data range from-1.9 to-5.8,8.1 to 14.8,respectively,suggesting that the ore-forming water origin is characteristic of the mixtures of magmatic water and meteoric water,probably dominant magmatic carbonatite and little marine sedimentary carbonate.Therefore,the ore-forming elements are mainly resulted from the deep-source fluids with middle to high temperature,eventually forming middle to deep magmatic hydrothermal gold deposit.