石英斑岩

基于矿区石英斑岩体见矿化和矿化蚀变，矿体与围岩呈渐变关系等特点，笔者主张该矿床属斑岩型铜铅锌多金属矿床。

In view of the facts that the quartz porphyry in the orefield has been mineralized and the orebodies show transitional relationship with the porphyry , the authors believe that the deposit should be a porphyry Cu-Pb-Zn polymetallic one .

浅部石英斑岩为含矿岩体，深部花岗斑岩为矿源岩体。

The shallow quartz porphyry is ore-bearing massif and the deep granite porphyry is ore-origimating one .

而晚阶段的矿化则以Sn、Cu为主，主要分布在蚀变石英斑岩型矿石中。而且W、Mo、Bi矿化集中在较深部：Sn、Cu矿化与深度无明显关系。

And moreover , W , Mo , Bi mineralization centralized in the deeper part , Sn , Cu mineralization shows no obvious relation with the depth .

石英斑岩是成岩阶段的最后产物。

The magma experienced crystallization differentiation , generating granite and quartz porphyry .

含金石英脉体产出于石英斑岩与灰岩的接触带，成矿物质主要来自石英斑岩围岩；

The mineral vein occurs in the contact strip of the quartz porphyry and the limestone .

有助于岩浆的结晶分异并导致银在石英斑岩（浆）中的富集；

It contributed to magmatic crystallization differentiation and the concentration of silver in the quartz porphyry magma ;

第一阶段有花岗斑岩、石英斑岩两次侵入；

In the first stage , there are two times of intrusions , granite-porphyry and quartz-porphyry intrusions .

研究结果还表明，该区深部隐伏花岗岩基及其浅成岩相石英斑岩脉与银矿化未显示出有铅同位素的亲缘关系。

This study also shows that there is no relationship in lead isotopic composition between quartz porphyry veins and comagmatic gran-ites with silver mineralization .

刁泉大型银铜矿床产于由黑云母石英二长岩、花岗斑岩、石英斑岩等组成的复式岩体的夕卡岩带中，矿化呈环带状展布。

The Diaoquan silver copper deposit , a large sized deposit recently discovered in northeastern Shanxi , occurs in the skarn zone around a neck facies complex rock body .

岩浆结晶分异过程中挥发组分演化的计算模拟及其意义②有助于岩浆的结晶分异并导致银在石英斑岩（浆）中的富集；

DIGITAL SIMULATION OF VOLATILE EVOLUTION DURING FRACTIONAL CRYSTALLIZATION AND ITS SIGNIFICANCE ( 2 ) It contributed to magmatic crystallization differentiation and the concentration of silver in the quartz porphyry magma ;

该火山岩系底部超镁铁岩的REE分布模式为轻稀土富集型，有小的Eu正异常；细碧岩-石英角斑岩也是轻稀土强富集型，Ce和Eu有轻微的正异常；

REE patterns of spilites , keratophyres and ultramafic rocks under the volcanic rocks show strong enrichment in LREE with unobvious Ce and Eu positive anomalies .

对细碧-石英角斑岩系种属划分和命名的建议

Suggestion on the classification of spilite keratophyre and their nomenclature

白银地区细碧石英角斑岩地球化学特征&兼谈白银板块构造环境

The Geochemical Features of Spilite-keratophyre in Baiyin Area and the Plate Tectonic Setting

细碧&角斑岩系一般分为细碧岩、斑岩和石英角斑岩三类。

Spilite-keratophyre sequence is generally divided into spilite , keratophyre and quartz keratophyre .

并证实其原岩是与本区未变质的火山岩类相同的一套细碧-石英角斑岩系。

We con-firm that the original rocks are identical with the volcanic rocks in this area .

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。

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 .

浑圆状锆石核部SHRIMPU-Pb谐和年龄为620Ma和219Ma，这表明该石英闪长斑岩的母岩浆可能起源于经历了超高压变质作用改造的华南地块基底物质的部分熔融。

SHRIMP U-Pb concordia ages of the cores of rounded zircons are 620 and 219 Ma , suggesting that the parental magma for the quartz diorite porphyry may have been derived from partial melting of basement materials of the South China block that had been modified by ultrahigh-pressure metamorphism .

冶父山岩体主体岩性为石英正长斑岩。

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

斑岩的主要岩石类型为花岗闪长斑岩、二长花岗斑岩、石英二长斑岩。

The main rock types of the porphyries are granodiorite-porphyry , monzonitic granite-porphyry and quartz monzonitic porphyry .

全岩的主要元素、微量元素和稀土元素表明石英闪长斑岩中富碱、富钠、富轻稀土，铕异常不明显。

Chemically , the quartz diorite porphyry is rich in alkali , sodium and LREE and lack of obvious europium negative anomaly .

石英二长斑岩侵入于前奥陶纪松多岩群和石炭-二叠系来姑组中，并被帕那组火山岩呈火山沉积不整合覆盖。

The quartz-monzonite porphyry intrusived in the Pre-Ordovician Songduo Group and Carboniferous-Permian Laigu Formation , unconformably covered by the volcanic rocks of Pana Formation .

该岩体主要由石英闪长玢岩、石英二长斑岩和花岗闪长斑岩组成，与铜矿化关系密切。

The intrusion mainly consists of quartz diorite porphyry , quartz monzonite porphyry and granodiorite porphyry , and has close relationship with the copper mineralization .

录斗艘金矿床属破碎蚀变岩型金矿，产于德乌鲁石英闪长岩与录斗艘石英闪长斑岩接触带附近。

Ludousou gold deposits belong to fractured altered rock-type gold deposit , produced in Dewulu quartz diorite and Ludousou quartz porphyry contact zone .

在石英脉型矿石中，石英的杂质元素含量分布特征与石英斑岩一致，石英斑岩本身的特点及氧、硫、铅同位素特征说明石英斑岩是本矿床的成矿母岩。

Impurities of quartz in quartz-vein type of silver ore are coincided with those of the wall rock-quartz porphyre , This phenomena and O , S , Pb isotopes show that the porphyre is mother rock of the deposit .