石英二长岩

花岗岩类为TTG岩系及石英二长岩-花岗岩组合。

The granitoids are of TTG rock series and adamellite granite assemblage .

碱长花岗岩和少数石英二长岩Ba和Sr含量较低，且具有明显Eu负异常。

The moyite and quartz monzonite have low Ba and Sr abundances and strong negative Eu anomaly .

通过对含矿斑岩的岩石学和地球化学研究表明该区内至少有两类以上含矿斑岩，以石英二长岩和花岗闪长岩类为主。

Petrological and geochemical studies of the ore-bearing porphyries indicate that there are at least two types of porphyry in the study area , mainly including quartz monzonite and granodiorite .

根据杂岩体相互之间的接触、穿插、包裹等关系，厘定他们形成的先后顺序为正长闪长岩、霓辉正长岩、石英二长岩、花岗斑岩、正长斑岩。

According to the complex interspersed 、 cutting 、 wrapping relations among all the complex , we can determine their order of formation which is syenodiorite to aegirine-syenite to quartz-monzonite to granite-porphyry to syenite porphyry .

最利于Au、Ag成矿的部位是花岗闪长岩与石英二长闪长岩的接触界线附近以及花岗闪长岩与围岩接触带附近的断裂交汇处。

The most favorable spots where gold or sliver mineralizes are the lithofacies lines between granodiorite and quartz monzodiorite and the crossing ruptures between granitic diorite and its ' wall rocks .

大宁岩体由二长花岗岩、花岗闪长岩及石英二长闪长岩组成，侵入时代为晚志留世（K&Ar法407、445Ma）。

Daning pluton is composed of monzonitic granite , granodiorite and quartz monzodiorite . It 's intrusive era is late silurian epoch ( K-Ar method : 407 、 445Ma ) .

凤凰山岩体为凤凰山矿田的主要组成部分，主要岩石类型为花岗闪长岩、石英二长闪长岩。

The Fenghuangshan pluton , which consists of granodiorite and quartz monzodiorite , is the main part of the Fenghuangshan ore field .