交代的

It is believed that the iron, gold and cobalt ores in Kaxiutata were formed at different stages of the same ore_forming event, and the magnetite ores are products of the contact metasomatism between the magma and the strata, while the enrichment of the gold and cobalt resulted from the subsequent sulfide deposition at the meso_hypothermal stages.

卡休他他铁、金和钴矿的形成可能是同一成矿事件中不同阶段的产物，磁铁矿体属于早期岩浆气液阶段接触交代的产物，而钴和金的富集则可能是稍后的中高温热液阶段的产物。

Schorl in the granite and dravite in carbonatite are respectively related to the magmatic fluid and basin fluid, while the tourmaline with optical and chemical zones in vein ore is mainly due to the mix of post-magmatic hydrothermal solution and basin fluid; The chemical composition variety of garnet in the horizontal zones are mainly related to the post-magmatic hydrothermal solution and the accessorial fluid from sedimentary basin.

不同产状的电气石及其环带状结构分别与来自岩浆期后热液和盆地流体及其混合所产生的"化学振荡"作用有关；在夕卡岩水平分带中，石榴石化学成分的变化除与岩浆热液在演化过程中自身的物理-化学条件发生变化外，可能还与岩浆热液在对围岩进行渗滤交代的过程中有盆地流体的加入有关。

Our project is based on Cenozoic volcanic rocks and deep seated xenoliths in it to reconstruct the source composition and ctructure. We did field investigation, collection of samples, determination of age and composition characteristics of selected samples. The new achievements are following. 1 recognized a potassic metasomatic source of the Cenozoic volcanic rocks through an integrated research of volcanic rocks and their sources. 2 analysis of TM images suggests the Tuoyun basin is a basin with a volcano group instead of a simple volcano-tectonic basin. We found several volcanic craters and cone, and detected three such craters. 3 systematic reseach of volcanic sections and collection of samples both of volcanic rocks and xenoliths, the later includes peridotite, granulite, gneiss and variety of megacrysts. This is propitious to our further research at this rigion. We would like to point that we collected some peridotite large than 20cm in diameter. It could used to variety of analysis and end the history without mantle chemistry records in the region. 4 we got a U-Pb SHRIMP age of 3.87 Ma for the Kangxiwa basalt.It is the youngest record of U-Pb SHRIMP age in China and provide a chronology restriction for last uplifting of Tibet plateau. 5 the investigation of alkali syenite-synogranite in Taxkogan suggests that the origin of Parmir syntex is related to the Cenozoic magmatism.

本项目立足于从火山岩属性和深源捕掳体反演源区成分与结构两个途径，利用火山岩综合研究成果对地幔源区进行了初步反演，提出源区经受过强烈钾质交代的观点；对重点工作区TM图像进行了初步解译，新发现若干了火山口，并对其中三个火山口作了实地查验，为进一步全面深入开展该区的火山地质学及相关科学问题打下了良好基础，认为托云盆地是一个火山群，而不是一个单一的火山构造盆地；系统测制了火山岩剖面，新采集了一批重要的火山岩和深源岩石捕虏体样品，为下一步工作打下基础，特别是采集到了直径打20cm的幔源橄榄岩包体，可用于各种测试，将可以结束西部造山带没有地幔岩化学分析结果的历史；对康西瓦玄武岩进行了测年分析，取得了我国目前最年轻的锆石U-Pb SHRIMP年龄，对青藏高原挽近地质时期的隆升提供了年代学约束；对帕米尔东缘塔什库尔干碱性岩体的动力学意义进行了探讨，提出青藏高原西部构造结的形成与岩浆活动有关的观点。

The content of major elements, such as Fe, Mg, Ca and Al, and trace elements, such as Ti, Sr, Ni, Cr and Co, is linearly correlated to that of SiO2, which suggests that the different volcanic rocks in the basin should be the product of fractional crystallization of congenetic magmas. The parental magma may be generated by the partial melting of an enriched mantle wedge formed by the metasomatism of slab-derived fluids in an active continental margin tectonic setting.

FeO、MgO、CaO、Al2O3、TiO2等主元素和Sr、Ni、Cr、Co等微量元素的含量与SiO2含量呈明显的线性相关关系，表明该区火山岩可能是同源岩浆分异的产物，岩石形成於活动大陆边缘的构造环境，并由遭受消减板块流体交代的富集地幔楔部分熔融而形成。

The characteristics of elements shows that magma of fine dioritequartz diorites derived from the enriched mantle or lower crust undergone ocean crust subducting and dehydrating, and was formed and emplaced in the process of crust growth. The magma of dioritic porphyritedacitic porphyries emplaced relatively late, it might derive from upper crust or undergo intensive contamination of crustal materials, and was formed in the proces of crust thining. These characteristics suggest that the geodynamics background of the Jinchanggouliang gold deposit formation is the transition process from compression to extension.

元素地球化学特征显示：细晶闪长岩-石英闪长岩的岩浆源于富集地幔或洋壳俯冲脱水交代的下地壳，地壳增厚过程产生并就位；闪长玢岩-英安斑岩类的岩浆就位相对晚，来源具有上地壳性质或被地壳物质强烈混染，地壳减薄过程形成；这种特征暗示金厂沟梁金矿形成的地球动力学背景是在地壳挤压增厚转化为伸展减薄过程。

According to cpx-melt equilibrium pressure, the xenoliths types and simulating calculating of host rock REE partition pattern, source of sodic basalts is garnet lherzolite mantle, and the source of potassic basalt is metasomatic fluid altered phlogopite-containing garnet lherzolite mantle. For the alkaline basalts to sub-alkaline basalts, the melting degrees of the source rocks are 4%～15%.

根据单斜辉石—熔体平衡压力计算、所携带的包体类型及玄武岩稀土元素配分曲线的非实比部分熔融定量模拟表明，钠质玄武岩的来源为石榴石二辉橄榄岩源区，五大连池钾质玄武岩的源区是被交代的含金云母石榴石二辉橄榄岩源区，研究区碱性玄武岩到亚碱性玄武岩是石榴石二辉橄榄岩源区经4％～15％部分熔融程度的产物。

Alkali-metasomatic processes can be divided into 3 stages: alkali-metasomatic stage, neutral metasomatic stage and acidic metasomatic stage.

通过研究认识到：碱交代蚀变系列可分为碱交代、中性交代和酸交代三个阶段，其中的碱交代和中性交代形成浸出场，酸交代阶段则形成沉淀场。

Ore deposit, have been studied detailly; the orebody pattern (sedimental bedded ores combined with stringer ores of hydrothermal origin) is also outlined; four metallogenic epoches are devided; the zoning of mineralization (including zones of ores, elements, mineral assemblages and temperature of mineralization) have been depicted; the main types of wall-rock alteration are characterized as propylitization of basic rocks and pyritization-sericitization-silicification of acidic pyroclastic rocks; the origin of ores and seven kinds of main minerals have been studied; and the metamorphism and deformation of orebodies is thought mainly due to the shearing and the intrusion of subvolcanic rocks

研究了七个矿化带特别是I号矿床的矿床地质特征，描绘了矿体的双层结构(沉积矿石与热液充填交代的细网脉状矿石)，划分了四个成矿期次，区分了矿化分带(包括矿石组构的成因分带、元素分带、矿物组合分带、温度分带)，指出了围岩蚀变的主要特征是细碧岩青盘岩化而石英角斑质凝灰岩黄铁绢英岩化；对矿石及七种主要矿石矿物的成因作了研究；探讨了矿体的变质、变形，指出韧性剪切及次火山岩侵入的热力作用和应力作用是导致矿体变质变形的主要原因

From the fields of regional crust-mantle structure, metallogentic settings, history of tectonic-magmatic activity, distribution of high antimony anomaly, characteristics of deposit, origin of ore-forming materials (including Sb, C, Si, S, solution and associated elements), black dikes, the relation of deposit and mantle metasomatism fluid is expounded by means of geology and geophysics. Xikuangshan antimony deposit is proved to be a typical vein deposit formed by mantle metasomatism fluid. On the basis of this knowledge, the prospecting criteria of blind orebody of the deposit are given as follows: extensive structuer which indicating the activities of mantle metasomatism fluid, change of host rocks (especially exsisting shale barrier bed), silication and carbonization alteration.

文中对地幔交代流体组成、性质、活动特点及其成岩、成矿作用作了综述与探讨；从锡矿山区域壳幔结构和成矿背景、地质构造-岩浆活动史、高锑地球化学场结构分析、矿床特征、成矿物质(包括Sb、C、Si、S、流体及伴生元素)、与成矿有时空联系的暗色脉岩等方面入手，利用地质、地球物理、地球化学手段多方面论述了矿床与地幔交代流体活动的关系，论证了锡矿山超大型锑矿的地幔交代流体成因，并以此为基础提出盲矿体地质找矿标志：即指示地幔交代流体活动的构造，尤其是具有成矿元素和碱质异常、热液蚀变的断裂构造；有利的岩石物理化学性质；硅化、碳酸盐化围岩蚀变等。

The crystal constant of α has a range from 0.932 nm to 0.933 nm with an average of 0.933 nm. Various replacement and remnant structures show that the phosphorates in submarine guyots are mainly of replacement origin.

各种交代残余结构（交代角砾状结构、交代生物结构、交代凝灰结构、交代生物假象结构、交代填间结构等）表明，太平洋水下海山上的磷酸盐主要属交代成因。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。