花岗岩

The results show that the zircons of the samples in deformative granite and massive granite of the Jiaoziding granites have internal oscillatory zoning; zircons of the Jiaoziding granites have higher Th/U ratios（0.521.23, 0.321.16）and are igneous in origin.

研究结果表明，轿子顶花岗岩体中变形花岗岩和块状花岗岩中锆石均发育岩浆韵律环带结构，具有较高的Th/U比值（052~123、032~116），为岩浆成因锆石。

The occurrence of the granites in the Foping and vicinity correlates closely with those ductile-brittle shearing zones. The granite bodies are elongate in shape and distribute parellel to the shearing zones with high dip angles, and are plane in shape and emplace along the shearing zones with low dip angles, displaying syntectonic feature.

佛坪及其邻近地区发育的花岗岩体与这些韧性--脆韧性剪切带有密切的空间关系，即在近直立剪切带附近花岗岩体多呈现与剪切带大体平行的长条状，而在缓倾斜的低角度剪切带发育地带，花岗岩体多呈面状，且呈顺层侵位特征，显示同构造侵位特征。

In terms of structural characteristics and geochemistry of the granites in conjunction with previous studies, we interpret that the garnet-bearing gneissic granite was formed during the collision between the Tianshuihai terrane and the Southern Kunlun terrane following the closure of a branch of the paleo-Tethyan ocean along the Mazha-Kangxiwa suture zone, the block hornblende-bearing granite was formed during post-orogenic extension. On the other hand, the granites of ca.

根据两个岩体的构造特征，结合前人的研究及地球化学特征，表明含石榴子石片麻状花岗岩形成于同碰撞造山时期，是甜水海地体与西昆仑南带晚古生代岛弧沿麻扎-康西瓦缝合带碰撞峰期的产物，代表了沿麻扎-康西瓦分布的古特提斯洋一个分支的闭合，而228 Ma块状含角闪石花岗岩形成于碰撞造山后的伸展背景。220～190 Ma持续发育的花岗岩是南昆仑地体拼合到北昆仑地体之后在其南部形成的新的深成岩浆弧带。

The feldspars of topaz-lepidolite granite in Yashan late stage are P-rich albite and Kfeldspar, and the phosphorus goes into feldspar structure in the form of PAlSi〓 substitution. The phosphorus contents of feldspars vary according to their crystal habitus. In general, the feldspars of later generation have the higher average phosphorus content than that of earlier generation, and the albite contains higher phosphorus than the K-feldspar in the same generation. The zircon is highly rich in Hf, U, P and Al. The phosphorus enters the zircon structure mainly by the form of〓P〓〓Si〓, Al〓P〓Si〓 or P〓Al〓Si〓, Zr〓 substitution. The P-rich zircon is the production of the highly evolved magma, and it might be one of the important characteristic minerals of the high-P subtype granite. The manganocolumbite, manganotantalite, wodginite and titanowodginite are the main niobium and tantalum minerals.

雅山晚阶段黄玉锂云母花岗岩的长石矿物是富磷长石，磷以PAlSi〓替换方式进入长石结构中，并且在长石中的分布很不均一，一般是晚结晶的长石比早结晶的长石的磷含量高，同期结晶的钠长石比钾长石的磷含量高；锆石矿物为高度富铪、铀、磷和铝的锆石，磷主要以(Y， HREE， Fe)〓P〓〓〓Si〓〓、Al〓P〓Si〓〓、P〓Al〓Si〓〓Zr〓〓等替换方式进入锆石晶格中，富磷锆石是岩浆高度演化的结果，是高磷花岗岩的特征矿物之一；雅山含有丰富的磷锂铝石，是高磷花岗岩的主要磷酸盐矿物；铌—钽矿物主要有铌锰矿—钽锰矿、锡锰钽矿—钛锰钽矿、细晶石等。

Bassed on many kinds of characteristics of the alkaligranite, the paper establishes a complex genetic model of A-type granite in wulungu alkali-granite, that is" activity of mantal material+partial melting of hydrous-absent saclic source rock+differentiation of granitoid magma+tensional geological envioment".

综合本区花岗岩的各种特征，本文首次提出了乌伦古富碱花岗岩带中A型花岗岩的&地幔物质活动+脱水的硅铝质源岩部分熔融+花岗质岩浆分异作用+张性地质环境&的复合成因模式。

The main ore bodies found up to now are mainly located to the south of the monzonitic granite. The area within 1-3 km south of the Beida-shan monzonitic granite is thought to be the most favorable sites for the search for new parallel and high-grade ore bodies.

Au/Ag比值和-图解显示，北大山二长花岗岩提供了成矿所需热源，已发现的主要矿体都在该花岗岩南部，距北大山二长花岗岩南1~3 km范围是寻找新的平行富矿体的最有利地段。

The magmatite in the area consist mainly of granite, monzonitic granite, syenogranite and acid volcanics.

研究区出露的岩浆岩主要为花岗岩、二长花岗岩、正长花岗岩和酸性火山岩，岩石化学成分上以富铝钾、贫镁铁，且经历了较大的分离结晶作用为特征。

The kelameili high-alkaline granite belt consists of seven super-unites and the rocks are moyite and alkali-granite .

卡拉麦里富碱花岗岩带由7个超单元组成，岩性主要有钾长花岗岩和碱性花岗岩。

In order to solve the important and basic problem of the petrogenesis of "Tiantangzhai migmatitic granite" in the core of Dabie orogenic belt, the detailed 1∶50000 regional geological surveying and the big scale dissection of important region (metamorphic rocks, granites and structure), were operated in about 900km〓 area near Tiantangzhai peak. On the bases of the petrology, mineral chemistry, geochemistry of rare earth element and microelement, isotope geochemistry and chronology, physicochemistry, magmatic dynamics, geodynamics, diagenetic simulation, and regional geophysical data, the theory of cooling age and historical geochemistry and the viewpoint of tectonic evolution are applied to study the petrogenesis of Yanshan epoch granites of this region. On the bases of above studies, the process of tectonomagmatic dynamics after indo-Chinese epoch in Dabie orogenic belt is discussed. The important conclusions are gotten

本文针对大别造山带核部&天堂寨混合花岗岩&成因这一重大基础地质问题，在天堂寨一带近900km〓的面积上进行了详细的1∶5万区域地质调查和大比例尺重点区解剖，通过对区内燕山期花岗岩进行岩石学、矿物化学、稀土微量元素地球化学、同位素地球化学和年代学、物理化学、岩浆动力学、地球动力学和成岩计算机模拟等研究的基础上，结合区域地球物理学资料，应用冷却年龄、历史地球化学理论和构造演化观，阐明区内燕山期花岗岩成因，并以此为基础进一步讨论了大别造山带自印支期以来的构造—岩浆动力学过程，取得了如下的重要认识

The discriminant analyses,of 28 granitic intrusives distributed in the periphery of the stanniferous granite bodies,by using the Keluo-Lazi diagram,SiO2-Al2O3+Na2O+K2O-CaO+MgO+FeO diagram,Fe-Na+K-Mg diagram and K-Na-Ca diagram,,indicate that the four diagrams can be applied to...

对分布于含锡花岗岩类岩体外围的28个可能含锡岩体进行科勒-拉兹图解、S iO2-A l2O3+Na2O+K2O-CaO+MgO+FeO图解、Fe-Na+K-Mg图解和K-Na-Ca图解判别后发现，壳源酸性花岗岩类完全可以用四图解进行含锡性判别，并且完全符合实际地质特征，大部分都有希望找到伴生壳源型锡矿床；而幔源中基性花岗岩类的含锡性却不适用上述四个图解进行判别。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。