Quartz syenite

The outer circle consists of alkaline gabbro , quartz syenite and alkali-feldspar granite . The inner circle consists of quartz diorite-granodiorite-adamellite-moyite of calc-alkaline series .

外环为碱性辉长岩、石英正长岩、碱长花岗岩，内环为钙碱系列的石英闪长岩-花岗闪长岩-二长花岗岩-钾长花岗岩。

Geology and geochemical characteristics of the Anqing-Lujiang quartz syenite rock-belt and its genesis

安庐石英正长岩带的地质和地球化学特征及成因探讨

A study of zonal structure zircon in quartz syenite from Zaoyang County Hubei Province

湖北枣阳石英-正长岩中的环带状锆石研究

Iron chevkinite in quartz syenite from a certain district in Hubei

湖北某地石英-正长岩中的铁硅钛铈矿

The Yefushan rock mass is mainly composed of quartz syenite porphyry .

冶父山岩体主体岩性为石英正长斑岩。

The quartz syenite from the contemporary-melting type magma activity provided with the main ore-forming materials . The abundance of the ore-forming elements such as Ag , Pb , Zn in this kind of rock is about as 4 ~ 10 times as the average in the world .

同熔型岩浆作用形成的石英正长斑岩是成矿物质的主要提供者，岩石中Ag、Pb、Zn等成矿元素的丰度值普遍较高，约为世界同类岩石平均值的4~10倍，呈强富集状态。

It is composed of four rock units , they are gabbro , pyroxene syenite ,( quartz ) syenite and syenogranite from early to late .

岩性上自早到晚由辉长岩、辉石正长岩、（石英）正长岩和正长花岗岩等四个岩石单元构成。