矿物学的

Bismuth minerals and their relationship with gold mineralization are studied by means of reflect light microscope and electron probe microscope.The results show that bismuth, bismuthinite are main bismuth minerals in the two mines.

矿相学鉴定和电子探针分析结果表明，两矿床中的铋矿物以自然铋、辉铋矿为主，其次为碲铋矿、硫铜铋矿、辉铋铅矿等；铋矿物作为主要载金矿物，与自然金紧密共生；包村矿区Bi-Au相关系数为0.69，铋矿物与金矿化关系非常密切。

Topics covered include, the properties of light and its interaction with mineral grains: reflection, refraction, polarisation, interference phenomena, extinction, colour and pleochroism. Refractometry inclusive isotropic, uniaxial and biaxial optics and the interpretation of interference figures. Transmitted light petrography in the identification and familiarisation with major rock forming minerals in grain mounts and thin section.

讲稿内容涉及到光学属性分析与矿物交叉面相互反应，具体内容有反射、折射、偏振、光干涉现象（包括等方性、单轴、二轴光学及干涉数据解释）、岩石记述学、矿物的光学属性鉴定等方面。

The results showed that clay mineral of the sedimentary core B106 reveal seven palaeoclimate events since 16725 Cal.aBP, such as"Bolling Warming Events"in 13100±45 aBP,"Younger Dryas Cooling Events"in 10393±45 aBP,"Early Holocene Cold Event"in 8000aBP,"South of China Cooling Events"in 4624±35 aBP, Cooling Events in 3370±40 aBP, Drought Incident Cooling Events in 922BC and"Cooling Events of Northern and Southern Dynasty"in 514AD.

研究结果显示，B106柱的粘土矿物学指标指示出16725 Cal.aBP以来的7次古气候变化事件，分别是13100±45 aBP的&博林暖期升温事件&、10393±45 aBP的&新仙女木降温事件&、8000 Cal.aBP对应的&全新世最大降温事件&、4624±35 aBP的&中国南方降温事件&、3370±40 aBP的降温事件、922BC的干旱降温事件和514 AD的&南北朝降温事件&。

Combined with core-flood tests for sensitivity evaluation, petrographical analyses were made on more than 200 samples from the reservoir. The results indicate that the higher the PH of the fluids, the severe the formation dam...

采集该储层岩样品200余块，进行岩相学分析和敏感性实验表明：PH值越高，地层损害程度越大；而高PH值的工作液不仅引起粘土矿物的分散、运移，而且还导致部分矿物的溶解和新矿物的沉淀，使渗透率大幅度下降；同时，碱敏损害程度亦与盐度和流速有关。

A petrographic analysis combined with electron microprobe analysis and SEM shows that black opaque matters, whose composition is mostly of microcrystalline silicate and magnetite, are widely found running reticulately through mineral particles, crystals and cleavage cracks in association with metasomatic alteration in the mafic-ultramafic xenoliths and their host rocks.

经岩相学和电子探针及扫描电镜分析发现，伴随交代蚀变，寄主岩和各类镁铁-超镁铁质包体岩石中，普遍发育沿粒间和矿物晶体裂隙或解理纹贯入或穿插的黑色不透明物质，主要由微晶硅酸盐矿物和磁铁矿组成。

The chemical-petrographic types of these meteorites are presented below.Six are unequilibrated ordinary chondrites,including three H3 and three L3;92 meteorites are equilibrated ordinary chondrites,including 24 H-group(13 H4,10 H5,1 H6),64 L-group(2 L4,44 L5,18 L6) and 4 LL-group(3 LL4,1 LL5);the other two belong to stone-iron meteorites.In 6 unequilibrated ordinary chondrites,chondrules are well-shaped,and olivine and low-Ca pyroxene are commonly zoned and have wide ranges of composition.The olivine and low-Ca pyroxene in the other 92 equilibrated ordinary chondrites have similar composition,respectively,and to some degree it reflected thermodynamics equilibration in olivine and lowCa pyroxene.

并根据矿物-岩石学特征，划分了它们的化学-岩石类型：6块属于非平衡型普通球粒陨石(H3和L3群各3块)；92块属于平衡型普通球粒陨石，包括：H群24块(13块H4，10块H5，1块H6)，L群64块(2块L4，44块L5，18块L6)，LL群4块(3块LL4，1块LL5)；另外两块属于石-铁陨石。6块非平衡型普通球粒陨石保存了原始的岩石学和矿物化学特征，包括：清晰的球粒结构、橄榄石和低钙辉石具有明显的成分环带以及极不均一的化学组成等。92块平衡型普通球粒陨石中的橄榄石和低钙辉石显示出均一的化学组成，表明它们达到了一定的热力学平衡。

A number of geological and mineral composition and geochemical investigations indicate that the deep geodynamics process and mantle characteristics of middle Jurassic gabbros suits from south Jiangxi province are distinguish from Cretaceous gabbros suits from coastal belt of Fijian province, the former are related to mantle upwelling and lithosphere extension, the later are related to subduction and lie on back-arc basin in tectonic environment.

对赣南车步辉长岩类的地质特征、矿物学和地球化学特征进行了研究，着重讨论它与沿海辉长岩类构造环境和源区性质的不同，研究表明它可能是中国东南部中侏罗世软流圈上涌、岩石圈伸展和地壳裂解的产物，而沿海白垩纪辉长岩类的构造环境是弧后拉张盆地；车步辉长岩类的源区可能是未受到明显俯冲组分影响的富集地幔，而沿海白垩纪辉长岩类的源区可能包含较多俯冲组分。

This dissertation focus on rutiles, apatites epidotes and vein minerals from CCSD drill core and outcrops of Sulu-Dabie UHPM rocks, by detailed study of petrography, petro-chemistry, and mineral-chemistry, the implication of these minerals to UHPM and continental subduction-exhumation were discussed.

大别地表超高压变质岩中的这些副矿物和脉体矿物为主要研究对象，通过详细的岩相学、岩石化学、矿物化学等研究，对这些副矿物在超高压变质作用及大陆深俯冲—折返过程的指示意义进行了较为深入的探讨，在以下几个方面取得新的认识：1。

Some basic theories and principles of spinel formation and the basic technology and process of industrial production of spinel minerals are described. The development and application of raw minerals and products of spinels are also briefly introduced.

笔者根据尖晶石的矿物学特性，对尖晶石的生成以及工业生产的基本原理、基本工艺和基本过程作一系统的概述，并对尖晶石原料、含尖晶石工业制品的开发与应用作一简要的介绍。

Through studying the structure, the characteristic, the growth mechanism and mediation in sponge spicules, scientists are learning a new biotechnological route to produce electronic and optical nanomaterials in an environmentally benign way.

近年来，人们发现了硅质海绵骨针独特的微结构及良好的光纤特性，特别是指出了这些特性给人类带来制造光纤的新思路，并很快引起了科学家对其结构、特性、生长机制与调控的生物学、生矿物学和仿生学的广泛研究兴趣。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了