花岗岩

Most of small intrusive bodies are stocks or dikes, and each of the dimension is less than 1km2 ; they are mostly granite-porphyry、porphyritic-granite、monzogranite,a small amouts of them are quartz diorite or diorite; the chemical characters are high content of SiO2、K2O and low content of Mg and CaO, on the SiO2-K2O diagram all the samples fall in the field of high-K calc-alkalic series and shoshonite series.

小岩体多呈岩株或脉状产出，出露面积多数在1km2以下；岩性主要为花岗斑岩、似斑状花岗岩、二长花岗岩，少量为石英闪长岩及闪长岩等；岩石化学成份以高硅、富碱、多钾、贫镁、少钙为特征，属高钾钙碱性系列或钾玄岩系列。

Studies also indicate that galena and Sphalerite intungsten-tin deposits related to Yanshanian subalkaline granite differ obvi-ously from these minerals in lead-zinc deposits associated with Yanshanianintermediate-acid granitoids in contents and ratios of minor elements.

研究还表明，与燕山期偏碱性花岗岩有关的锡钨矿床和与燕山期中酸性花岗岩类有关的铅锌矿床其方铅矿、闪锌矿的微量元素含量及比值存在明显的差别。

The zircon SHRIMP U-Pb chronological results show the ages of 584±7 Ma for the Lunckeryggen granite,619±7 Ma for the Defuk granite,534±13 Ma for the Mefjell syenitic rocks in the Sr Rondane Mountains,East Antarctica,representing the formation ages of the different Pan-African grantoid bodies.

本文通过对东南极索龙达讷山泛非期花岗质岩石采用高精度锆石U-Pb SHRIMP定年，获得Lunckeryggen花岗岩中锆石的年龄为584±7 Ma、Defuk花岗岩中锆石的年龄为619±7 Ma、Mefjell正长岩中锆石的年龄为534±13 Ma。

In the case of granite, observation results indicate that the extending routes of active cracks are mainly intercrystalline, transcrystalline, inter-transcrystalline, and intracrystalline. When the strain rate is low, the long intercrystalline cracks are prevailing, and with increasing of the strain rate, the short transcrystalline and intracrystalline cracks gradually increase. The statistic results show that the active crack density increases with increasing of the strain rate, and the mean length of active cracks diminishes with increasing of the strain rate, that is, the induced damage in comminuted product increases with increasing of the strain rate. For the first time this dissertation integrates macroscopic results of comminution with active crack growth under impact loading. It elucidates why the dynamic comminution strength of mineral beds increases with increasing of the strain rate through the active crack extending, and analyzes the influence of structure and constitution of minerals on their damage under impact stress. It is authenticated that both the size distribution and the damage population of comminuted product can be characterized by the fractal.

为分析料层颗粒在冲击下的细观损伤效果，采用德国生产的ASM68K半自动图象分析仪对粉碎生成物中的损伤情形进行了观测，以花岗岩为例，观测结果表明花岗岩颗粒在冲击应力下的活化裂纹扩展路径主要表现为沿晶、穿晶、沿穿晶和晶内等形式，在低应变速率下，活化裂纹以沿晶裂纹较多，随着应变速率的提高，其它裂纹形式大量繁衍，统计结果表明活化裂纹密度随着应变速率的增大而增大，活化裂纹的平均长度随着应变速率的增大而减小，综合表现为颗粒的细观损伤程度随着应变速率的增大而增大；首次将应力作用下的活化裂纹演化特征与粉碎的宏观效果相联系，并就料层动态粉碎强度随应变速率增大而提高的现象从裂纹演化特征的角度进行了解释；分析了矿岩构造结构特性对损伤产生和分布的影响。

I-type granite occurs on north of HongliugouLapeiquan Fault, its chemical composition is similar to that of trondhjemite arisen by Barker (1979), maybe also a product of subduction and collision of oceanic basin in early Paleozoic.

根据SiO〓-Al〓O〓和SiO〓-FeO〓/图解判别显示造山后花岗岩的特征；后者分布在红柳沟—拉配泉断裂以北，其成分与巴克尔1979年提出的奥长花岗岩的成分非常相似，也可能是区内早古生代洋盆俯冲碰撞的产物。

The original defined adakitesare sodium igneous rocks, they are tonalite, trondhjemite or (plagioclase-rich) granodiorite in whole-rock chemistry; however, the K-rich "C-type" adakite defined by Chinese scholars are potassic igneous rocks, they are granite, quartz monzonite and (alkali feldspar-rich) granodiorite, etc.

最初定义的埃达克岩是钠质火成岩，其全岩化学成分相当于英云闪长岩、奥长花岗岩和花岗闪长岩；而富钾的&C型埃达克岩&全岩化学成分相当于花岗岩、石英二长岩和花岗闪长岩。

The experimental products include crystal phase quartz, feldspar (alkila-feldspar, albite, K-feldspar), zinnwaldite and topaz, a melt phase and a trace vapour. The solid products were been studied by optics method, electron microprobe and X-ray analysis. The results show that liquidus temperature raises slightly and solidus temperature falls down obviously and that the upper temperature limit raises for the stability field of quartz and topaz, and falls down for the stability field of alkila-feldspar as F contents in crease.

实验淬火产物包括结晶相石英，长石(碱性长石，钠长石、钾长石)，铁锂云母和黄玉及玻璃相和微量流体，对固相淬火产物进行了系统和详细的显微观察及电子探针和x射线分析，研究了F对钠长花岗岩液、固相线温度、相关系和相组合的影响和含F钠长花岗岩的结晶序列和熔体演化、F在流体和熔体之间的分配及F对花岗质熔体结构的影响，对含黄玉矿物组合进行了一系列热力学矿物平衡计算，获得如下重要结论

China Craton were emplaced in early-middle Jurassic and early Cretaceous, respectively, identical to the geochronological framework in NE China.

东北是我国显生宙花岗岩极为发育的地区，但分布的20余万平方公里的花岗岩的时代问题一直存在争论。

A landscape of granite hoodoos can be seen well developed in Beidashan of the Daixingainling mountain range in Keshiketeng county,Inner Mongol Autonomous Region.

首次在内蒙克什克腾旗境内的大兴安岭山脉的北大山上，发现世界罕见的花岗岩石林地貌景观。花岗岩石林是在特殊的内、外动力作用下形成的。

A landscape of granite hoodoos can be seen well developed in Beidashan of the Daixingainling mountain range in Keshiketeng county,Inner Mongol Autonomous Region.

摘 要：首次在内蒙克什克腾旗境内的大兴安岭山脉的北大山上，发现世界罕见的花岗岩石林地貌景观。花岗岩石林是在特殊的内、外动力作用下形成的。

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。