二长岩

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 .

岩石、矿物地球化学的研究表明，辉石粗安岩与辉石二长岩同源，分别为火山穹窿的上部和根部。

The study of petrology , mineralogy and geochemistry suggests that augite latite and augite monzonite are cognate , belonging to the upper and root parts of the volcanic dome respectively .

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 .

基于实验岩石学成果，论述了无负Eu异常的中酸性火成岩类（正长岩、二长岩、石英闪长岩类）形成于加厚陆壳底部（或山根带）。

Based on the data from experimental petrology , the acid-intermediate igneous rocks ( synitic , monzonitic , QY-dioritic ) without negative Eu-anomaly seem to have formed at the base of thickened crust or in the mountain root zone .

水晶屯金矿床位于张宣幔枝构造轴部，水泉沟&大南山碱性角闪二长岩杂岩体的西缘。

Shuijingtun gold deposit is located in the central axis of the Zhanjiakou-Xuanhua mantle branch and in the west of alkaline hornblende monzonite in the area of Shuiquangou-Dananshan in Zhangjiakou .

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 .

同时，幔源岩浆进一步分异，向过碱性方向演化，形成了本区辉石二长闪长岩岩浆。

Meanwhile , mantle-derived magma differentiates to the alkaline direction , producing the pyroxene monzodiorite magma in this section .

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 .

其中二长闪长岩和霓辉正长岩，岩浆起源于富集地幔，并有地壳物质的参与；二长岩类岩浆为壳-幔混源，花岗岩类及脉岩类岩浆来源于地壳。

Among the complex , monzodiorite and syenite originated from enriched mantle , and has the participation of crustal material ; monzonite magma originated from crust - mantle mixed source , and the granite magma derived from crustal source . 4 .

辽河期黑云二长花岗岩及其脉岩与富镁质碳酸盐岩接触部位对成矿最有利。

The most favorable locations for jade formation are contact zones between biotite monzonitic granite dykes and Mg-rich carbonate 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 ) .